CN110342698B

CN110342698B - Sewage treatment vehicle

Info

Publication number: CN110342698B
Application number: CN201910736165.8A
Authority: CN
Inventors: 王建国
Original assignee: Beijing Beizhong Automobile Refit Co ltd
Current assignee: Beijing Beizhong Automobile Refit Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2022-08-05
Anticipated expiration: 2039-08-09
Also published as: CN110342698A

Abstract

The invention relates to a sewage treatment vehicle, which comprises a vehicle body, a carriage, a water inlet assembly, a filtering assembly, a communicating pipe, a settling tank, a dosing assembly, a water discharging assembly and a stacked screw type sludge dewatering machine, wherein the vehicle body is provided with a water inlet pipe and a water outlet pipe; the carriage is fixed on the vehicle body; the water inlet assembly is arranged in the carriage; the filtering component is communicated with the water inlet component; the settling tank is arranged in the carriage and is used for carrying out layered treatment on water and sediments in the sewage; the communicating pipe is communicated with the filtering component and the settling tank; the dosing assembly is arranged in the carriage and used for adding a flocculating agent and a coagulant aid into the settling tank; the drainage assembly is communicated with the settling tank and is used for draining water on the upper layer of the settling tank out of the carriage; the stacked spiral sludge dewatering machine is communicated with the settling tank and is used for dewatering the sediment at the bottom of the settling tank. The sewage treatment system can pump the sewage of the river channel and the pond into the carriage for treatment, the treated water is discharged into the river channel and the pond again, the treated pollutants are discharged to the nearby places and are transported away by other vehicles for utilization, and the secondary pollution of the water body is reduced.

Description

Sewage treatment vehicle

Technical Field

The invention relates to a vehicle, in particular to a sewage treatment vehicle.

Background

The water pollution is mainly caused by pollutants generated by production and living activities of people, and comprises three major parts, namely an industrial pollution source, an agricultural pollution source and a living pollution source. The industrial wastewater is an important pollution source of a water area and has the characteristics of large quantity, wide area, complex components, high toxicity, difficult purification, difficult treatment and the like; the agricultural pollution sources comprise livestock manure, pesticides, chemical fertilizers and the like, the chemical fertilizers flow into rivers along with surface soil and then lose nutrient elements such as nitrogen, phosphorus, potassium and the like, so that the rivers are harmed by eutrophication pollution of different degrees, and the water transparency and dissolved oxygen change to deteriorate the water quality; the domestic pollution sources mainly comprise various detergents, sewage, garbage, excrement and the like used in urban life, most of the domestic pollution sources are nontoxic inorganic salts, and domestic sewage contains more nitrogen, phosphorus, sulfur and pathogenic bacteria.

In order to solve the problems, some common water pollution treatment methods are generally adopted, and because China has a large population and a large water pollution area, the water pollution treatment has the problems of large drainage basin area, wide influence range, uncertain pollution sources, large treatment engineering quantity and the like. The existing sewage treatment of the riverways and the ponds mostly adopts fixed-point station establishment and chemical medicines such as flocculating agents, coagulant aids and the like are put in, the problems are solved on the surfaces, but the pollutants after treatment are deposited at the water bottom, the problems are not solved fundamentally, and the pollutants still cause harm to human bodies and the environment.

Disclosure of Invention

The invention aims to provide a sewage treatment vehicle, which can pump sewage in a river channel and a pond into a carriage for treatment through structural improvement, discharge the treated water into the river channel and the pond again, discharge the treated pollutants to the vicinity, and carry away and utilize the pollutants by other vehicles, thereby reducing the problem of secondary pollution of water.

The above object of the present invention is achieved by the following technical solutions: a sewage treatment vehicle comprises a vehicle body, a carriage, a water inlet assembly, a filtering assembly, a communicating pipe, a settling tank, a dosing assembly, a water discharging assembly and a stacked screw type sludge dewatering machine; the carriage is fixed on the vehicle body, and an openable door plate is arranged on the carriage and used for communicating internal equipment with the outside; the water inlet assembly is arranged in the carriage and used for introducing external sewage into the treatment equipment in the carriage; the filtering component is communicated with the water inlet component and is used for primarily filtering the introduced sewage; the settling tank is arranged in the carriage and is used for carrying out layered treatment on water and sediments in the sewage; the communicating pipe is communicated with the filtering component and the settling tank and is used for conveying the sewage filtered by the filtering component into the settling tank; the dosing assembly is arranged in the carriage and used for adding a flocculating agent and a coagulant aid into the settling tank; the drainage assembly is communicated with the settling tank and is used for draining water on the upper layer of the settling tank out of the carriage; the stacked spiral sludge dewatering machine is communicated with the settling tank and is used for dewatering the sediment at the bottom of the settling tank to form a sludge cake.

By adopting the technical scheme, when a certain area is polluted, the sewage treatment vehicle can be driven to a corresponding place; then pumping the sewage in the polluted river channel and the polluted pond into the carriage; after being filtered by the filtering component, the mixture is sent into a settling tank through a communicating pipe; adding a flocculating agent and a coagulant aid, and discharging sewage on the upper layer of the settling tank out of the carriage by a drainage assembly after settling for a certain time; then the sediment at the bottom of the settling tank is sent into a stacked screw type sludge dewatering machine for dewatering to form a mud cake, and the mud cake is transported away by other vehicles and utilized; repeating the steps until the sewage treatment is finished; the treated mud cake can not be mixed into a river channel and a pond, so that the problem of secondary pollution of a water body is reduced.

The invention is further configured to: the settling tank is arranged on the top wall of the inner side of the carriage.

Through adopting above-mentioned technical scheme, the setting of setting is on the inboard roof of box, can stagger with the part of box below like this, better utilization box space, and the handling capacity is also bigger.

The invention is further configured to: the filtering component comprises a filtering tank, a filtering net which is fixedly connected in the filtering tank and divides the filtering tank into an upper layer and a lower layer, and an electric flocculating machine which is arranged at the lower layer of the filtering tank; the water outlet end of the water inlet component is communicated with the upper layer of the filter box.

By adopting the technical scheme, when in use, sewage enters the filter box through the water inlet assembly and is filtered by the filter screen, so that coarse pollutants can be blocked; then the filtered sewage enters a lower layer and is treated by an electric flocculating machine, and part of pollutants in the sewage form floccules through electrochemical reaction; facilitating subsequent processing.

The invention is further configured to: the drainage component comprises a drainage pipe, a drainage pump, a sludge discharge pipe and a sludge discharge pump; the upper end of the drain pipe is communicated with the upper part of the settling tank, and the drain pump is communicated with the drain pipe and can pump out the clean water on the upper layer in the settling tank; the sludge discharge pump is communicated with a sludge discharge pipe, one end of the sludge discharge pipe is communicated with the bottom of the settling tank, and the other end of the sludge discharge pipe is communicated with the stacked screw type sludge dewatering machine.

By adopting the technical scheme, the drainage and the sediment in the settling tank are conveniently sent into the stacked spiral sludge dewatering machine,

the invention is further configured to: the drainage component also comprises a flushing pipe, a first valve, a second valve and a third valve; the flushing pipe is communicated with the drainage pipe and the sludge discharge pipe; the second valve is arranged on the flushing pipe; the first valve is arranged on the sludge discharge pipe and is positioned between the flushing pipe and the sludge discharge pump; the third valve is connected to the outlet end of the drain pipe.

By adopting the technical scheme, when the water draining device is used, the second valve is closed and the third valve is opened when water is drained, so that water is directly drained; when the stacked screw type sludge dewatering machine is to be washed, the second valve is opened, the first valve and the third valve are closed, and at the moment, water is introduced into the stacked screw type sludge dewatering machine to wash the stacked screw type sludge dewatering machine.

The invention is further configured to: a sedimentation net is arranged in the sedimentation tank, and the sedimentation tank is divided into an upper layer and a lower layer by the sedimentation net; the drain pipe is communicated with the upper layer of the settling tank; the sludge discharge pipe is communicated with the lower layer of the settling tank; the communicating pipe is communicated with the lower layer of the settling tank.

Through adopting above-mentioned technical scheme, from the difficult arrival settling tank upper strata of sewage and the flocculus that the communicating pipe sent into like this, deposit more fast, the drain pipe just can begin the drainage after the deposit of short time.

The invention is further configured to: the fixed guide board that is provided with on the settling tank inner wall, the guide board is the arc, and it is located the top of communicating pipe export, can guide the sewage of sending into to flow bottom the settling tank.

Through adopting above-mentioned technical scheme, the guide board can guide the sewage of sending into to the setting tank bottom flow, and then the flocculus in the sewage of its output is difficult for floating more, and it is more quick to deposit.

The invention is further configured to: the dosing assembly comprises two groups of equipment, wherein one group of equipment comprises a first dosing tank, a first dosing pump and a first dosing pipe; one end of the first dosing pipe is communicated with the first dosing tank, the other end of the first dosing pipe is communicated with the settling tank, and the first dosing pump is communicated with the first dosing pipe; the other group of equipment comprises a second dosing tank, a second dosing pump and a second dosing pipe; the second dosing pipe is communicated with the second dosing tank and the settling tank, and the second dosing pump is communicated with the second dosing pipe.

By adopting the technical scheme, the flocculant and the coagulant aid can be conveniently added.

In conclusion, the invention has the following beneficial effects:

1. therefore, when a certain area is polluted, the sewage treatment vehicle can be driven to a corresponding place; then pumping the sewage in the polluted river channel and the polluted pond into the carriage; after being filtered by the filtering component, the mixture is sent into a settling tank through a communicating pipe; adding a flocculating agent and a coagulant aid, and discharging sewage on the upper layer of the settling tank out of the carriage by a drainage assembly after settling for a certain time; then the sediment at the bottom of the settling tank is sent into a stacked screw type sludge dewatering machine for dewatering to form a mud cake, and the mud cake is transported away by other vehicles and utilized; repeating the steps until the sewage treatment is finished; the treated mud cake can not be mixed into a river channel and a pond, so that the problem of secondary pollution of a water body is reduced;

2. the settling tank is arranged on the top wall of the inner side of the tank body, so that the settling tank can be staggered with components below the tank body, the tank body space is better utilized, and the treatment capacity is larger;

3. the drainage assembly is improved, so that the stacked screw type sludge dewatering machine is more convenient to clean;

4. the setting subsides net, guide board, makes the effect of subsiding of sewage more quick.

Drawings

FIG. 1 is a schematic view of the external structure of a sewage treatment vehicle;

FIG. 2 is a schematic view of the interior of the tank body of the sewage treatment vehicle;

FIG. 3 is a schematic view of another perspective of the interior of the tank of the sewage treatment truck;

FIG. 4 is a sectional view of a stacked screw type sludge dewatering machine;

figure 5 is a cross-sectional view of the settling tank.

In the figure, 1, a vehicle body; 2. a carriage; 3. a water intake assembly; 30. a water inlet pipe; 31. a self-priming pump; 4. a filter assembly; 40. a filter box; 41. a filter screen; 42. an electric flocculating machine; 5. a communicating pipe; 50. a lift pump; 6. a settling tank; 60. a settling net; 61. a guide plate; 7. a dosing assembly; 70. a first dosing box; 71. a second dosing box; 72. a first dosing pump; 73. a second dosing pump; 74. a first dosing tube; 75. a second dosing tube; 8. a drainage assembly; 80. a drain pipe; 81. draining pump; 82. a flush tube; 83. a sludge discharge pipe; 84. a sludge discharge pump; 85. a first valve; 86. a second valve; 87. a third valve; 9. a stacked screw type sludge dewatering machine; 90. a frame; 91. a mixing box; 92. a screw shaft; 93. a drive motor; 94. a mud discharging hopper; 95. a travelling ring; 96. a filtrate tank; 960. and a liquid discharge pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples

Referring to fig. 1, 2 and 3, a sewage treatment vehicle comprises a vehicle body 1, a carriage 2, a water inlet assembly 3, a filtering assembly 4, a communicating pipe 5, a settling tank 6, a dosing assembly 7, a water discharging assembly 8 and a stacked screw type sludge dewatering machine 9; the carriage 2 is fixed on the vehicle body 1, and openable door plates are arranged on two sides and the back of the carriage 2 and used for communicating internal equipment with the outside; the water inlet assembly 3 is arranged in the carriage 2 and is used for introducing external sewage into the treatment equipment in the carriage 2; the filtering component 4 is communicated with the water inlet component 3 and is used for primarily filtering the introduced sewage; the settling tank 6 is arranged on the top wall of the inner side of the carriage 2 and is used for carrying out layered treatment on water and sediments in the sewage; the communicating pipe 5 is communicated with the filtering component 4 and the settling tank 6 and is used for sending the sewage filtered by the filtering component 4 into the settling tank 6; the dosing assembly 7 is arranged in the carriage 2 and is used for adding a flocculating agent and a coagulant aid into the settling tank 6; the water drainage component 8 is communicated with the settling tank 6 and is used for draining water on the upper layer of the settling tank 6 out of the car 2; the screw-stacked sludge dewatering machine 9 is communicated with the settling tank 6 and is used for dewatering the sediment at the bottom of the settling tank 6 to form a mud cake for subsequent utilization.

Therefore, when a certain area is polluted, the sewage treatment vehicle can be driven to a corresponding place; then pumping the sewage in the polluted river channel and the polluted pond into the carriage 2; after being filtered by the filter assembly 4, the mixture is sent into a settling tank 6 through a communicating pipe 5; adding a flocculating agent and a coagulant aid, and discharging the sewage on the upper layer of the settling tank 6 out of the carriage 2 by the drainage component 8 after settling for a certain time; then the sediment at the bottom of the settling tank 6 is sent into a stacked screw type sludge dewatering machine 9 for dewatering to form a mud cake which is transported away by other vehicles and utilized; repeating the steps until the sewage treatment is finished; the treated mud cake can not be mixed into a river channel and a pond, so that the problem of secondary pollution of a water body is reduced.

In the treatment process, the treated water can be discharged to other places firstly, so that the treatment efficiency of the sewage can be improved, and the treated water is more thorough; under the condition of limited conditions, the treated water can be discharged into the original river channel and pond for multi-cycle treatment for several times, and the effect of reducing the content of pollutants in the river channel and the pond can be achieved.

The settling tank 6 is arranged on the top wall of the inner side of the tank body 2, so that the settling tank can be staggered with parts below the inner side of the tank body 2, the space of the tank body 2 is better utilized, and the treatment capacity is larger.

Referring to fig. 2, the water inlet assembly 3 includes a water inlet pipe 30 and a self-priming pump 31 communicated with the water inlet pipe 30; the water suction end of the water inlet pipe 30 can be provided with a hose, so that the water inlet pipe can be conveniently placed in a river channel or a pond; when the self-priming pump 31 is operated, sewage can be sucked into the filter assembly 4.

Referring to fig. 2 and 3, the filtering assembly 4 includes a filtering tank 40, a filtering net 41 fixedly connected to the filtering tank 40 and dividing the filtering tank 40 into an upper layer and a lower layer, and an electric flocculating unit 42 disposed at the lower layer of the filtering tank 40; the water outlet end of the water inlet pipe 30 is communicated with the upper layer of the filter box 40.

When the device is used, sewage enters the filter box 40 through the water inlet pipe 30 and is filtered by the filter screen 41, so that coarse pollutants are blocked; then the filtered sewage enters the lower layer and is treated by the electric flocculating machine 42, and part of pollutants in the sewage form floccules through electrochemical reaction.

Referring to fig. 2, a lift pump 50 is provided on the connection pipe 5, and the lift pump 50 can feed the sewage in the lower layer of the filter tank 40 into the settling tank 6 together with the flocs.

Referring to fig. 2, the dosing assembly 7 has two sets of equipment for adding a flocculant and a coagulant aid, respectively; wherein the apparatus for adding flocculant comprises a first dosing tank 70, a first dosing pump 72 and a first dosing pipe 74; the first dosing box 70 is filled with a flocculating agent, one end of the first dosing pipe 74 is communicated with the first dosing box 70, the other end of the first dosing pipe is communicated with the settling tank 6, and the first dosing pump 72 is communicated with the first dosing pipe 74 and can pump the flocculating agent into the settling tank 6; wherein the apparatus for adding coagulant aid comprises a second dosing tank 71, a second dosing pump 73 and a second dosing pipe 75; the second dosing tank 71 is filled with coagulant aid, the second dosing pipe 75 is communicated with the second dosing tank 71 and the settling tank 6, and the second dosing pump 73 is communicated with the second dosing pipe 75 and can pump the coagulant aid into the settling tank 6.

Referring to fig. 3, the drain assembly 8 includes a drain pipe 80, a drain pump 81, a sludge pipe 83, and a sludge pump 84; the upper end of the water drainage pipe 80 is communicated with the upper part of the settling tank 6, and the water drainage pipe 81 is communicated with the water drainage pipe 80 and can drain the clear water at the upper layer in the settling tank 6; the sludge discharge pump 84 is communicated with a sludge discharge pipe 83, one end of the sludge discharge pipe 83 is communicated with the bottom of the settling tank 6, and the other end is communicated with the stacked screw type sludge dewatering machine 9; when the sludge discharge pump 84 works, the sediment at the bottom of the settling tank 6 can be sent into the stacked spiral sewage dehydrator 9.

In order to clean the stacked screw type sludge dewatering machine 9 conveniently, a drainage assembly 8 is improved, so that treated water can enter the stacked screw type sewage dewatering machine 9 to be washed. The specific structure is that the drainage assembly 8 further comprises a flushing pipe 82, a first valve 85, a second valve 86 and a third valve 87; the flushing pipe 82 is communicated with the drainage pipe 80 and the sludge discharge pipe 83; a second valve 86 is provided on the flushing pipe 82; the first valve 85 is arranged on the sludge discharge pipe 83 and is positioned between the flushing pipe 82 and the sludge discharge pump 84; a third valve 87 is connected to the outlet end of the drain 80.

In use, when water is to be drained, the second valve 86 is closed and the third valve 87 is opened, and water is directly drained; when the stacked screw type sludge dewatering machine 9 is to be flushed, the second valve 86 is opened, and the first valve 85 and the third valve 87 are closed, and water is introduced into the stacked screw type sludge dewatering machine 9 to flush the stacked screw type sludge dewatering machine.

Referring to fig. 3 and 4, the stacked screw type sludge dewatering machine 9 can be any one of those available in the market; for example, the stacked screw type sludge dewatering machine 9 of the environmental protection series of the Weifang Wanjie environmental protection company can also adopt the stacked screw type sludge dewatering machine 9 disclosed in patent numbers CN201910312165.5, CN201820966052.8 and CN201510557941.

The existing stacked screw type sludge dewatering machine 9 generally comprises a frame 90, a mixing box 91, a screw shaft 92, a driving motor 93, a sludge outlet hopper 94, a floating ring 95 and a filtrate tank 96; wherein the mixing box 91 is obliquely arranged on the frame 90; the screw shaft 92 is disposed in the mixing box 91 along the length direction of the mixing box 91; the driving motor 93 is fixed on the higher end of the mixing box 91, the output end of the driving motor is connected to the end part of the spiral shaft 92 through a gearbox, and the driving motor 93 can drive the spiral shaft 92 to rotate; the sludge outlet hopper 94 is arranged at the outlet of the mixing box 91, and the upper part of the sludge outlet hopper corresponds to the driving motor 93; the traveling ring 95 is disposed inside the mixing box 91; the filtrate tank 96 is disposed below the mixing tank 91, and a drain pipe 960 for discharging the filtrate is disposed at a lower end of the filtrate tank 96; the pitch of the blades on the screw shaft 92 gradually decreases as the screw shaft 92 goes upward. The sludge discharge pipe 93 communicates with the lower end of the mixing tank 91.

When in use, the driving motor 93 drives the screw shaft 92 to rotate; the sediment fed from the mud discharging pipe 93 is firstly concentrated by gravity under the self-weight, and when the sediment is conveyed upwards along with the spiral shaft 92, the sediment generates extremely large internal pressure along with extrusion along with the gradual reduction of the filter seam formed by the spiral shaft 92 and the floating ring 95 and the gradual reduction of the screw pitch on the spiral shaft 92, so as to achieve the purpose of full dehydration; the dehydrated water enters the filtrate tank 96 through the mixing tank 91 and is finally discharged; and the resulting cake is discharged from the mud bucket 94.

Referring to fig. 5, a settling net 60 is provided in the settling tank 6, and the settling tank 6 is divided into upper and lower layers by the settling net 60; the drain pipe 80 is communicated with the upper layer of the settling tank 6; the sludge discharge pipe 83 is communicated with the lower layer of the settling tank 6; the communicating pipe 5 is communicated with the lower layer of the settling tank 6; the first dosing pipe 74 and the second dosing pipe 75 are communicated with the lower layer of the settling tank 6. Thus, the sewage and the floccules fed from the communicating pipe 5 are not easy to reach the upper layer of the settling tank 6, the settling is quicker, and the water discharge pipe 80 can start to discharge water after the settling in a shorter time.

For more quick sediment, fixedly on 6 inner walls of settling tank being provided with a guide board 61, guide board 61 is the arc, and it is located the top of communicating pipe 5 export, can guide the sewage of sending into to flow 6 bottoms of settling tank, and then the flocculus in the sewage of its output is difficult for floating more, and it is more quick to deposit.

Referring to fig. 2 and 3, when the sewage treatment vehicle is used, the settling tank 6 is filled, then the flocculating agent and the coagulant aid are added, and after a period of settling, the sewage on the upper layer of the settling tank 6 is discharged by using the drainage assembly 8; then, the sludge at the lower layer of the settling tank 6 is sent into a stacked screw type sludge dewatering machine 9 for treatment until the treatment of the sediments in the settling tank 6 is finished; then the settling tank 6 is refilled, and the sewage in the river channel and the pond can be treated completely by circulating and reciprocating.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a sewage treatment car which characterized in that: comprises a vehicle body (1), a carriage (2), a water inlet assembly (3), a filtering assembly (4), a communicating pipe (5), a settling tank (6), a dosing assembly (7), a water discharging assembly (8) and a stacked screw type sludge dewatering machine (9); the carriage (2) is fixed on the vehicle body (1), and the carriage (2) is provided with an openable door plate for communicating internal equipment with the outside; the water inlet assembly (3) is arranged in the carriage (2) and is used for introducing external sewage into treatment equipment in the carriage (2); the filtering component (4) is communicated with the water inlet component (3) and is used for primarily filtering the introduced sewage; the settling tank (6) is arranged in the carriage (2) and is used for carrying out layered treatment on water and sediments in the sewage; the communicating pipe (5) is communicated with the filtering component (4) and the settling tank (6) and is used for conveying the sewage filtered by the filtering component (4) into the settling tank (6); the dosing assembly (7) is arranged in the carriage (2) and is used for adding a flocculating agent and a coagulant aid into the settling tank (6); the drainage component (8) is communicated with the settling tank (6) and is used for draining water on the upper layer of the settling tank (6) out of the carriage (2); the stacked screw type sludge dewatering machine (9) is communicated with the settling tank (6) and is used for dewatering the sediment at the bottom of the settling tank (6) to form a mud cake;

the drainage component (8) comprises a drainage pipe (80), a drainage pump (81), a sludge discharge pipe (83) and a sludge discharge pump (84); the upper end of the drain pipe (80) is communicated with the upper part of the settling tank (6), and the drain pump (81) is communicated with the drain pipe (80) and can pump out the clean water on the upper layer in the settling tank (6);

the drainage assembly (8) further comprises a flushing pipe (82), a first valve (85), a second valve (86) and a third valve (87); the flushing pipe (82) is communicated with the drainage pipe (80) and the sludge discharge pipe (83); the second valve (86) is arranged on the flushing pipe (82); the first valve (85) is arranged on the sludge discharge pipe (83) and is positioned between the flushing pipe (82) and the sludge discharge pump (84); the third valve (87) is connected to the outlet end of the water drainage pipe (80); when the stacked screw type sludge dewatering machine (9) is to be washed, the second valve (86) is opened, the first valve (85) and the third valve (87) are closed, and water is introduced into the stacked screw type sludge dewatering machine (9) to wash the stacked screw type sludge dewatering machine;

a sedimentation net (60) is arranged in the sedimentation tank (6), and the sedimentation tank (6) is divided into an upper layer and a lower layer by the sedimentation net (60); the drain pipe (80) is communicated with the upper layer of the settling tank (6); the sludge discharge pipe (83) is communicated with the lower layer of the settling tank; the communicating pipe (5) is communicated with the lower layer of the settling tank (6);

fixed guide board (61) that is provided with on settling tank (6) inner wall, guide board (61) are the arc, and it is located the top of communicating pipe (5) export, can guide the sewage of sending into to flow bottom settling tank (6), and guide board (61) arc opening orientation subsides net (60) and set up.

2. The sewage treatment vehicle of claim 1, wherein: the settling tank (6) is arranged on the top wall of the inner side of the carriage (2).

3. The sewage treatment vehicle of claim 1, wherein: the filtering component (4) comprises a filtering tank (40), a filtering net (41) which is fixedly connected in the filtering tank (40) and divides the filtering tank (40) into an upper layer and a lower layer, and an electric flocculating machine (42) which is arranged at the lower layer of the filtering tank (40); the water outlet end of the water inlet component (3) is communicated with the upper layer of the filter tank (40).

4. The sewage treatment vehicle of claim 1, wherein: the sludge pump (84) is communicated with the sludge discharge pipe (83), one end of the sludge discharge pipe (83) is communicated with the bottom of the settling tank (6), and the other end is communicated with the stacked screw type sludge dewatering machine (9).

5. The sewage treatment vehicle of claim 1, wherein: the medicine adding assembly (7) is provided with two groups of equipment, wherein one group of equipment comprises a first medicine adding box (70), a first medicine adding pump (72) and a first medicine adding pipe (74); one end of the first dosing pipe (74) is communicated with the first dosing box (70), the other end of the first dosing pipe is communicated with the settling box (6), and the first dosing pump (72) is communicated with the first dosing pipe (74); the other group of equipment comprises a second dosing box (71), a second dosing pump (73) and a second dosing pipe (75); the second dosing pipe (75) is communicated with the second dosing box (71) and the settling box (6), and the second dosing pump (73) is communicated with the second dosing pipe (75).