CN114014471A

CN114014471A - Digestion waste acid absorption treatment device

Info

Publication number: CN114014471A
Application number: CN202210002643.4A
Authority: CN
Inventors: 肖亚兵; 韩芳; 周典兵; 王丙涛; 刘旸; 杨爽; 张曼; 刘心同; 曾宪伟
Original assignee: Hefei Customs Technology Center; Shenzhen Customs Food Inspection And Quarantine Technology Center; Tianjin Customs Animal Plant And Food Inspection Center
Current assignee: Hefei Customs Technology Center; Shenzhen Customs Food Inspection And Quarantine Technology Center; Tianjin Customs Animal Plant And Food Inspection Center
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-02-08

Abstract

The invention relates to sewage treatment equipment, in particular to a waste acid absorption treatment device after digestion, wherein a mounting frame is arranged on the other side of a bottom plate, an impeller pump is arranged on the mounting frame, a liquid inlet of the impeller pump is communicated with a hopper box arranged at the bottom of a treatment box through a return pipe, a liquid outlet of the impeller pump is communicated with an upper opening of a tank body through a circulating pipe, and an impeller shaft of the impeller pump is connected with a motor arranged on the mounting frame; a spraying mechanism is arranged on one side of the treatment box, the spraying mechanism is connected with an impeller shaft of an impeller pump through a transmission assembly, and the spraying mechanism is communicated with the bottom of the tank body through a corrugated pipe; a concentration detection mechanism is also arranged between the return pipe and the liquid inlet of the impeller pump, and the concentration detection mechanism controls the on-off of the motor through an electromagnetic assembly. The device has the effect of continuously circulating adsorption treatment on acid liquor, and the motor is powered off only when the concentration reaches a preset value, so that the device can automatically detect and control, and the manual operation procedure is simple.

Description

Digestion waste acid absorption treatment device

Technical Field

The invention relates to sewage treatment equipment, in particular to a waste acid absorption treatment device after digestion.

Background

Digestion is a means of pretreating a sample when inorganic elements in the environment are measured. And (4) destroying organic matters through digestion treatment, so that the element to be detected is oxidized.

A commonly used digestion process is an acidic wet digestion process. The digestion agent is sulfuric acid or nitric acid, and in the case of difficult digestion, nitric acid-perchloric acid can also be used. A large amount of waste acid is generated during digestion, and the treatment mode of the waste acid after digestion is the same as the treatment mode of the waste acid generated in the industrial pickling process, and the waste acid is absorbed by caustic soda flakes and calcium chloride.

Therefore, the chinese patent discloses a waste acid treatment device (publication No. CN 205398311U), which is operated such that after the waste acid liquid in the waste acid treatment tank is collected to the middle upper part, an acid outlet valve is opened, a waste acid circulation valve is closed, the waste acid liquid entering a waste acid filtration cavity through a chemical reaction is lifted by a circulation pump, flows into a first waste acid treatment cavity through a waste acid circulation pipe and an acid inlet pipe, and is repeatedly subjected to the chemical reaction treatment, the pH value of the waste acid liquid is continuously increased along with the progress of the chemical reaction, the waste acid liquid in the waste acid filtration cavity is measured by a pH meter, when the pH value of the waste acid liquid is not less than 6, the circulation pump is stopped, the acid outlet valve is closed, the waste acid discharge valve is opened, and the treated waste acid liquid is discharged to a subsequent sedimentation tank through a waste acid discharge pipe for continuous treatment.

However, in the above scheme, the valve needs to be continuously controlled to be opened and closed, and the pH value is continuously detected, so that the operation is very inconvenient.

Disclosure of Invention

The invention aims to provide a waste acid absorption treatment device after digestion, which solves the problem of inconvenient operation in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a waste acid absorption treatment device after digestion comprises a tank body and a treatment box arranged right below the tank body, wherein a horizontal bottom plate is arranged below the treatment box, a support frame is vertically fixed on one side of the bottom plate, and the treatment box and the tank body are both arranged on the support frame;

the other side of the bottom plate is provided with a mounting frame, an impeller pump is mounted on the mounting frame, a liquid inlet of the impeller pump is communicated with a funnel box arranged at the bottom of the treatment box through a return pipe, a liquid outlet of the impeller pump is communicated with an upper opening of the tank body through a circulating pipe, and an impeller shaft of the impeller pump is connected with a motor mounted on the mounting frame;

a spraying mechanism is arranged on one side of the treatment box, the spraying mechanism is connected with an impeller shaft of the impeller pump through a transmission assembly, and the spraying mechanism is communicated with the bottom of the tank body through a corrugated pipe; a concentration detection mechanism is also arranged between the return pipe and the liquid inlet of the impeller pump, and the concentration detection mechanism controls the on-off of the motor through an electromagnetic assembly.

The invention further defines the scheme as follows: the treatment box is provided with a plurality of layers of detachable absorption plates, the absorption plates are provided with a plurality of criss-cross leak slots, the leak slots are provided with leak holes penetrating through the absorption plates, and limestone particles are filled in the leak slots;

a detachable filter plate is arranged at the communication part of the processing box and the funnel box, a sealing rubber strip is also arranged between the filter plate and the processing box, and a plurality of filter holes are formed in the filter plate;

the inner wall of the treatment box is provided with inner concave parts, the upper parts of the inner concave parts are rotatably provided with support plates, and the support plates are connected with the inner concave parts through torsion springs fixed on the surfaces of the inner concave parts on one side.

The invention also provides a scheme as follows: the spraying mechanism comprises a guide rail fixed on the upper edge of one side of the treatment box, a fixed cross beam penetrating through the guide rail and in sliding embedding with the guide rail, and a movable shower plate arranged below the fixed cross beam;

the length of activity shower plate with handle the width of case and match the below of activity shower plate is installed one row of shower nozzle, the shower nozzle pass through the hose with the bellows intercommunication, the fixed cross beam with transmission assembly connects.

The invention also provides a scheme as follows: the transmission assembly comprises a first support fixed on the mounting frame, a rotary table rotatably arranged at the upper end of the first support, a support arm fixed on one side of the rotary table, a shifting shaft fixed at the end of the support arm and a groove plate integrally and fixedly arranged at the end part of the fixed cross beam; the shifting shaft is embedded in the groove plate in a sliding manner;

the upper end of the first support is fixed with a shaft sleeve, a transmission shaft coaxially fixed with the rotary table is rotatably arranged in the shaft sleeve, and the transmission shaft is connected with one end, penetrating out of the impeller pump, of the impeller shaft through a transmission part.

The invention also provides a scheme as follows: the concentration detection mechanism comprises a switch assembly which is arranged on the mounting frame and used for supplying power to the motor, the switch assembly is matched with the electromagnetic assembly, and a conductive barrel is further fixed on the mounting frame;

the backflow pipe is communicated with the bottom of the conductive barrel, the upper portion of the conductive barrel is communicated with the liquid inlet of the impeller pump, and the electromagnetic assembly and the conductive solution in the conductive barrel form a loop.

The invention also provides a scheme as follows: the electromagnetic assembly comprises an iron core fixed on the outer wall of the conductive barrel, a power transmission line hermetically penetrating into the conductive barrel from one side, and a power input line hermetically penetrating into the conductive barrel from the other side;

wherein, power transmission line and income electric wire all are connected with one-level power electricity, the power transmission line is close to and a section winding of power is on the iron core.

The invention also provides a scheme as follows: the switch assembly comprises a secondary power supply fixed on the mounting frame, a switch sleeve fixed on the secondary power supply, a movable switch arranged in the switch sleeve in a sliding mode and used for electrically connecting the secondary power supply and the motor, and a pressure spring sleeved on the outer wall of the movable switch;

the one end that the movable switch closes on the switch cover is provided with the ladder, its other end be provided with be used for with iron core complex magnet the lower part of secondary power is fixed with the diaphragm, be fixed with No. two supports on the diaphragm, No. two support upper ends also are fixed with the axle sleeve, movable switch and this axle sleeve sliding fit, the one end of pressure spring with the ladder laminating, the other end is with this axle sleeve laminating.

Compared with the prior art, the invention has the beneficial effects that: the waste acid falls into the treatment box through the corrugated pipe through the spraying mechanism for absorption treatment, and the waste acid after the absorption treatment falls into the hopper box again.

When the motor is electrified, the impeller shaft of the impeller pump is driven to rotate, so that vortex is generated inside the impeller pump, waste acid at the bottom of the funnel box is pumped into the impeller pump through the backflow pipe and the concentration detection mechanism, and then returns to the tank body through the circulating pipe, and circulating absorption treatment of the waste acid is realized.

The concentration detection mechanism is used for detecting the concentration of the acid liquor flowing into the impeller pump from the return pipe, and when the concentration is higher, the motor is kept electrified, namely, the impeller pump is kept working, and the waste acid is circularly treated.

The acid liquor is repeatedly and circularly adsorbed, and the motor is powered off only when the concentration reaches a preset value, so that the automatic detection and control functions are realized, and the manual operation process is simple.

Drawings

FIG. 1 is a schematic structural diagram of a waste acid absorption treatment device after digestion.

FIG. 2 is a schematic view of the disassembled internal structure of a treatment box and a funnel box in the waste acid absorption treatment device after digestion.

Fig. 3 is a schematic structural view of fig. 2 from another view angle.

FIG. 4 is a schematic view of the structure of the treatment and hopper tanks in half section and the absorber plates.

Fig. 5 is a partially enlarged schematic view of a portion a of fig. 4.

FIG. 6 is a schematic structural diagram of an absorption plate in the waste acid absorption treatment device after digestion.

Fig. 7 is a schematic structural diagram of a spraying mechanism in the waste acid absorption treatment device after digestion.

Fig. 8 is a schematic structural view of another view angle of a spraying mechanism in the waste acid absorption treatment device after digestion.

FIG. 9 is a schematic structural diagram of a transmission assembly, an electromagnetic assembly and a concentration detection mechanism in the waste acid absorption treatment device after digestion.

Fig. 10 is a schematic view of fig. 9 from a reverse direction.

FIG. 11 is a schematic diagram of the electromagnetic assembly and the switching assembly of the spent acid absorption treatment apparatus after digestion.

Fig. 12 is a schematic structural diagram of fig. 11 from another view angle.

Fig. 13 is a schematic structural view of the digested waste acid absorption treatment device after the switch assembly is separated from the mounting frame.

In the figure: 1-a bottom plate; 2-a support frame; 3-tank body; 4-treatment box; 5-an absorbing plate; 6-a supporting plate; 7-an inner concave part; 8-torsion spring; 9-a filter plate; 10-sealing adhesive tape; 11-a hopper box; 12-a bellows; 13-a hose; 14-movable shower plate; 15-fixing the cross beam; 16-a guide rail; 17-a groove plate; 18-a mounting frame; 19-a motor; 20-a vane pump; 21-a return pipe; 22-a circulation pipe; 23-a transmission member; 24-a turntable; 25-a support arm; 26-a shifting shaft; 27-bracket number one; 28-a conductive barrel; 29-primary power supply; 30-a transmission line; 31-incoming line; 32-iron core; 33-a movable switch; 34-a switch sleeve; 35-a secondary power supply; 36-a pressure spring; 37-bracket number two; 38-sink.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1 to 13, as an embodiment of the present invention, the absorption treatment device for waste acid after digestion includes a tank 3 and a treatment tank 4 disposed right below the tank 3, a horizontal bottom plate 1 is disposed below the treatment tank 4, and a support frame 2 for mounting the treatment tank 4 and the tank 3 is vertically fixed on one side of the bottom plate 1 through a reinforcing rib;

a mounting frame 18 is arranged on the other side of the bottom plate 1, an impeller pump 20 is arranged on the mounting frame 18, a liquid inlet of the impeller pump 20 is communicated with a hopper box 11 arranged at the bottom of the treatment box 4 through a return pipe 21, a liquid outlet of the impeller pump 20 is communicated with an upper opening of the tank body 3 through a circulating pipe 22, and an impeller shaft of the impeller pump 20 is connected with a motor 19 arranged on the mounting frame 18;

of course, the bottom of the treatment tank 4 communicates with the upper mouth of said hopper tank 11.

A spraying mechanism is arranged on one side of the treatment box 4, the spraying mechanism is connected with an impeller shaft of the impeller pump 20 through a transmission component, and the spraying mechanism is communicated with the bottom of the tank body 3 through a corrugated pipe 12; a concentration detection mechanism is also arranged between the return pipe 21 and the liquid inlet of the impeller pump 20, and the concentration detection mechanism controls the on-off of the motor 19 through an electromagnetic assembly.

It should be noted that the diameter of the upper opening of the tank 3 is much larger than the diameter of the circulating pipe 22, one end of the circulating pipe 22 is fixed to the liquid outlet of the impeller pump 20, specifically, it can be fixed by a flange, and the other end of the circulating pipe 22 is in transition fit with the upper opening of the tank 3, that is, there is a large gap between the end of the circulating pipe 22 communicated with the upper opening of the tank 3 and the upper opening of the tank 3.

When the waste acid is treated, firstly, the waste acid solution to be treated is filled into the tank body 3 through a gap between the circulating pipe 22 and the upper opening of the tank body 3;

the waste acid falls into the treatment box 4 through the corrugated pipe 12 through the spraying mechanism for absorption treatment, and the waste acid after the absorption treatment falls into the funnel box 11.

When the motor 19 is powered on, the impeller shaft of the impeller pump 20 is driven to rotate, so that a vortex is generated inside the impeller pump 20, and waste acid at the bottom of the funnel box 11 passes through the return pipe 21, is pumped into the impeller pump 20 through the concentration detection mechanism, and then returns to the tank body 3 through the circulating pipe 22, so that the circulating absorption treatment of the waste acid is realized.

The concentration of the acid solution flowing into the impeller pump 20 from the return pipe 21 is detected by a concentration detection mechanism, and when the concentration is higher, the motor 19 is kept powered on, namely the impeller pump 20 is kept working, so that the waste acid is circularly treated.

The acid liquor is repeatedly and circularly adsorbed, and the motor 19 is powered off only when the concentration reaches a preset value, so that the automatic detection and control functions are realized.

As another embodiment of the present invention, referring to fig. 2 to 6, a plurality of layers of detachable absorption plates 5 are disposed on the processing box 4, a plurality of criss-cross leaking grooves 38 are disposed on the absorption plates 5, leaking holes penetrating through the absorption plates 5 are disposed on the leaking grooves 38, and limestone particles are filled in the leaking grooves 38;

the filter 9 is detachably arranged at the communication position of the processing box 4 and the funnel box 11, a sealing rubber strip 10 is further arranged between the filter 9 and the processing box 4, and a plurality of filter holes are formed in the filter 9.

When the waste acid falls onto the absorption plate 5, the waste acid flows into the leakage groove 38 and reacts with limestone in the leakage groove 38, the nitric acid reacts with the limestone to generate water, carbon dioxide and calcium nitrate, wherein the calcium nitrate is a slightly soluble substance, the calcium nitrate is left on the filter plate 9 after being filtered by the filter plate 9, and the incompletely absorbed nitric acid solution and water generated by the reaction enter the bottom of the funnel box 11 through the filter holes.

The two sides of the inner wall of the treatment box 4 are provided with inner concave parts 7, the upper parts of the inner concave parts 7 are rotatably provided with supporting plates 6, and the supporting plates 6 are connected with the inner concave parts 7 through torsion springs 8, one sides of which are fixed with the surfaces of the inner concave parts 7;

in detail, the other side of the torsion spring 8 is attached to the supporting plate 6, and the torsion spring 8 keeps a pressed state;

the supporting plate 6 can only turn over 90 degrees in the inner concave part 7, when the supporting plate is turned over to the highest position, the upper surface of the supporting plate 6 is attached to the top wall of the inner concave part 7, and the supporting plate 6 is kept in a horizontal state;

when it is turned over to the bottom, the pallet 6 is in a vertical state and one side thereof is flush with the inner wall of the treatment tank 4.

Owing to set up torsional spring 8, can place one deck absorption plate 5 on the layer of corresponding layer 6, and absorb at the spent acid, when needing to take out layer 6, can take out the layer 6 of superiors from handling case 4 earlier, then borrow the manpower to press the layer 6 of superiors to make it overturn downwards to flush with the inner wall of handling case 4, alright take out the absorption plate 5 on second layer this moment, avoid the layer 6 of superiors to obstruct the second layer and absorb the plate 5 and take out, alright take out the filter 9 on bottommost layer after taking out absorption plate 5 on each layer in proper order.

After the waste acid absorption treatment is finished, the filter plate 9 and the absorption plate 5 are taken out, limestone and calcium nitrate on the filter plate are removed respectively, the filter plate 9 is placed in, the absorption plates 5 are placed in sequence from the lowest layer to the uppermost layer, and when one layer of the absorption plate 5 is not placed, new limestone is filled in the leakage groove 38 of the absorption plate 5.

Referring to fig. 4, 7 and 8 as another embodiment of the present invention, the shower mechanism includes a guide rail 16 fixed to an upper edge of one side of the treatment tank 4, a fixed beam 15 passing through the guide rail 16 and slidably engaged therewith, and a movable shower plate 14 installed below the fixed beam 15;

the length of the movable shower plate 14 is equal to the width of the treatment box 4, a row of spray heads are arranged below the movable shower plate 14, the spray heads are communicated with the corrugated pipe 12 through hoses 13, and the fixed cross beam 15 is connected with the transmission assembly;

in particular, two stops are provided on the fixed cross-member 15, between which the guide rail 16 is situated, the length of the guide rail 16 corresponding to the length of the treatment chamber 4.

In this embodiment, the purpose of the two stops is to constrain the freedom of the fixed cross-beam 15 to move only linearly along the guide rail 16;

when the impeller shaft of the impeller pump 20 rotates, the fixed beam 15 is driven by the transmission assembly to reciprocate along the guide rail 16, so that the waste acid in the tank 3 is uniformly dispersed on the absorption plate 5 through the spray head.

As another embodiment of the present invention, referring to fig. 7 to 10, the transmission assembly includes a first bracket 27 fixed on the mounting frame 18, a turntable 24 rotatably disposed at an upper end of the first bracket 27, a support arm 25 fixed at one side of the turntable 24, a dial shaft 26 fixed at an end of the support arm 25, and a slot plate 17 integrally and fixedly disposed at an end of the fixed cross beam 15;

the dial shaft 26 is slidably fitted in the groove plate 17, and the length of the arm 25 corresponds to half of the length of the treatment tank 4;

a shaft sleeve is fixed at the upper end of the first support 27, a transmission shaft coaxially fixed with the rotary table 24 is rotatably arranged in the shaft sleeve, and the transmission shaft is connected with one end, penetrating out of the impeller pump 20, of the impeller shaft through a transmission piece 23.

In this embodiment, when the impeller pump 20 is working, the impeller shaft rotates, the rotating impeller shaft drives the transmission shaft to rotate through the transmission member 23, the transmission shaft drives the rotating disc 24 and the support arms 25 to make a circular motion, the circular motion support arms 25 drive the shifting shaft 26 to follow the circular motion, and the diameter of the circular motion track is equivalent to the length of the treatment tank 4.

In the process of circular motion of the shifting shaft 26, the shifting shaft 26 slides up and down in the trough plate 17 alternately to drive the trough plate 17 and the fixed cross beam 15 to reciprocate along the guide rail 16, so that the spray head moves back and forth above the treatment box 4 along the length direction of the treatment box 4 to uniformly disperse waste acid in the treatment box 4.

As another embodiment of the present invention, please refer to fig. 11 to 13, the concentration detecting mechanism includes a switch assembly mounted on the mounting frame 18 for supplying power to the motor 19, the switch assembly is matched with the electromagnetic assembly, and a conductive barrel 28 is further fixed on the mounting frame 18;

the return pipe 21 is communicated with the bottom of the conductive barrel 28, the upper part of the conductive barrel 28 is communicated with the liquid inlet of the impeller pump 20, and the electromagnetic assembly and the conductive solution in the conductive barrel 28 form a loop.

In this embodiment, the solution and water from the hopper tank 11 are fed into the conductive tank 28 through the return pipe 21 by the impeller pump 20, and if the waste acid is not completely absorbed by the limestone in the treatment tank 4, the nitric acid solution is entrained in the liquid fed into the conductive tank 28 and becomes conductive, so that the circuit formed by the electromagnetic assembly continues to be energized, thus keeping the switch assembly to turn on the motor 19.

As still another embodiment of the present invention, the electromagnetic assembly includes a core 32 fixed on an outer wall of the conductive tub 28, a power line 30 hermetically penetrating into the interior of the conductive tub 28 from one side, and a power line 31 hermetically penetrating into the interior of the conductive tub 28 from the other side;

wherein, the power line 30 and the incoming wire 31 are both electrically connected with the primary power supply 29, the power line 30 is adjacent and a section of the power supply 29 is wound on the iron core 32;

note that each of power line 30 and power line 31 has an insulating sheath, and the ends of power line 30 and power line 31 penetrating into conductive bucket 28 are exposed.

In this embodiment, when the nitric acid solution exists in the conductive barrel 28, the electric wire 31 and the power line 30 are connected under the ionization effect, and a complete loop can be formed among the primary power supply 29, the electric wire 31 and the power line 30, so that the iron core 32 is magnetized, the switch component is attracted, and the switch component is kept in a connected state;

conversely, when only a very small amount of nitric acid solution is present in the conductive barrel 28, although a complete circuit can be formed between the primary power supply 29, the incoming line 31 and the incoming line 30, the ion concentration is low, the resistance is high, and the magnetic field generated by the iron core 32 is very weak, which is not enough to maintain the switch assembly in the on state, i.e., the motor 19 is powered off.

As another embodiment of the present invention, the switch assembly includes a secondary power source 35 fixed on the mounting frame 18, a switch sleeve 34 fixed on the secondary power source 35, a movable switch 33 slidably disposed in the switch sleeve 34 for electrically connecting the secondary power source 35 and the motor 19, and a pressure spring 36 disposed on an outer wall of the movable switch 33;

the one end that activity switch 33 is close to switch sleeve 34 is provided with the ladder, and its other end is provided with be used for with iron core 32 complex magnet the lower part of secondary power 35 is fixed with the diaphragm, be fixed with No. two supports 37 on the diaphragm, No. two supports 37 upper end also is fixed with the axle sleeve, activity switch 33 and this axle sleeve sliding fit, the one end of pressure spring 36 with the ladder laminating, the other end is laminated with this axle sleeve.

In this embodiment, when the iron core 32 generates a large magnetic field, the magnet at the end of the movable switch 33 is attracted, and the secondary power source 35 is connected to the motor 19 through the movable switch 33 away from the sleeve 34;

when the magnetic field generated by the iron core 32 is small, the movable switch 33 is driven to reset through the pressure spring 36, and the secondary power supply 35 and the motor 19 are disconnected.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a clear up back spent acid and absorb processing apparatus, is in including a jar body (3) and setting processing case (4) under jar body (3), the below of processing case (4) is provided with horizontally bottom plate (1) the vertical support frame (2) that is fixed with in one side of bottom plate (1), processing case (4) and jar body (3) are all installed on support frame (2), its characterized in that:

a mounting frame (18) is arranged on the other side of the bottom plate (1), an impeller pump (20) is mounted on the mounting frame (18), a liquid inlet of the impeller pump (20) is communicated with a hopper box (11) arranged at the bottom of the treatment box (4) through a return pipe (21), a liquid outlet of the impeller pump (20) is communicated with an upper opening of the tank body (3) through a circulating pipe (22), and an impeller shaft of the impeller pump (20) is connected with a motor (19) mounted on the mounting frame (18);

a spraying mechanism is arranged on one side of the treatment box (4), the spraying mechanism is connected with an impeller shaft of the impeller pump (20) through a transmission component, and the spraying mechanism is communicated with the bottom of the tank body (3) through a corrugated pipe (12); a concentration detection mechanism is further arranged between the return pipe (21) and a liquid inlet of the impeller pump (20), and the concentration detection mechanism controls the motor (19) to be powered on or powered off through an electromagnetic assembly.

2. The absorption treatment device for waste acid after digestion according to claim 1, wherein the treatment box (4) is provided with a plurality of layers of detachable absorption plates (5), the absorption plates (5) are provided with a plurality of criss-cross leaking grooves (38), the leaking grooves (38) are provided with leaking holes penetrating through the absorption plates (5), and limestone particles are filled in the leaking grooves (38);

a detachable filter plate (9) is arranged at the communication position of the treatment box (4) and the funnel box (11), a sealing rubber strip (10) is also arranged between the filter plate (9) and the treatment box (4), and a plurality of filter holes are formed in the filter plate (9);

the inner wall of the treatment box (4) is provided with inner concave parts (7), the upper parts of the inner concave parts (7) are rotatably provided with support plates (6), and the support plates (6) are connected with the surface-fixed torsion springs (8) of the inner concave parts (7) through one side of the support plates (6).

3. The absorption treatment device for waste acid after digestion according to claim 1, wherein the spraying mechanism comprises a guide rail (16) fixed on the upper edge of one side of the treatment box (4), a fixed cross beam (15) penetrating through the guide rail (16) and in sliding fit with the guide rail, and a movable spraying plate (14) installed below the fixed cross beam (15);

the length of activity shower plate (14) with the width of handling case (4) is equivalent install one row of shower nozzle in the below of activity shower plate (14), the shower nozzle pass through hose (13) with bellows (12) intercommunication, fixed cross beam (15) with transmission assembly connects.

4. The absorption treatment device for waste acid after digestion of claim 3, wherein the transmission assembly comprises a first bracket (27) fixed on the mounting frame (18), a turntable (24) rotatably arranged at the upper end of the first bracket (27), a support arm (25) fixed on one side of the turntable (24), a shifting shaft (26) fixed at the end of the support arm (25), and a groove plate (17) integrally and fixedly arranged at the end of the fixed cross beam (15); the shifting shaft (26) is in sliding embedded in the groove plate (17);

a shaft sleeve is fixed at the upper end of the first support (27), a transmission shaft coaxially fixed with the rotary table (24) is rotatably arranged in the shaft sleeve, and the transmission shaft is connected with one end, penetrating out of the impeller pump (20), of the impeller shaft through a transmission piece (23).

5. A spent acid absorption treatment apparatus after digestion according to claim 1, characterized in that the concentration detection means comprises a switch assembly mounted on the mounting frame (18) for supplying power to the motor (19), the switch assembly cooperating with the electromagnetic assembly, and a conductive barrel (28) further fixed on the mounting frame (18);

the return pipe (21) is communicated with the bottom of the conductive barrel (28), the upper part of the conductive barrel (28) is communicated with the liquid inlet of the impeller pump (20), and the electromagnetic assembly and the conductive solution in the conductive barrel (28) form a loop.

6. A spent acid absorption treatment device after digestion according to claim 5, characterized in that the electromagnetic assembly comprises an iron core (32) fixed on the outer wall of the conductive barrel (28), a power transmission line (30) penetrating into the conductive barrel (28) from one side in a sealing way, and a power transmission line (31) penetrating into the conductive barrel (28) from the other side in a sealing way;

wherein the power line (30) and the power line (31) are both electrically connected to a primary power source (29), the power line (30) being adjacent and a section of the power source (29) being wound on an iron core (32).

7. The absorption treatment device for waste acid after digestion according to claim 6, wherein the switch assembly comprises a secondary power supply (35) fixed on the mounting frame (18), a switch sleeve (34) fixed on the secondary power supply (35), a movable switch (33) slidably arranged in the switch sleeve (34) and used for electrically connecting the secondary power supply (35) and the motor (19), and a pressure spring (36) sleeved on the outer wall of the movable switch (33);

the one end that activity switch (33) closed on switch cover (34) is provided with the ladder, and its other end is provided with be used for with iron core (32) complex magnet the lower part of secondary power (35) is fixed with the diaphragm, be fixed with No. two supports (37) on the diaphragm, No. two support (37) upper ends also are fixed with the axle sleeve, activity switch (33) and this axle sleeve sliding fit, the one end of pressure spring (36) with the ladder laminating, the other end is laminated with this axle sleeve.