CN222219490U

CN222219490U - An integrated high-pressure feeding system for an autoclave

Info

Publication number: CN222219490U
Application number: CN202420067753.3U
Authority: CN
Inventors: 丁成; 郝福来; 张磊
Original assignee: Changchun Gold Research Institute
Current assignee: Changchun Gold Research Institute
Priority date: 2024-01-11
Filing date: 2024-01-11
Publication date: 2024-12-24
Anticipated expiration: 2034-01-11

Abstract

The utility model belongs to the technical field of reaction kettle feeding devices, and particularly relates to an integrated high-pressure feeding system of an autoclave, wherein a premixing feeder, an air storage tank and an air compressor are fixed in an integrated protective shell, a feeding pipeline and a discharging pipeline are arranged in the integrated protective shell, a mechanical stirrer, a liquid level switch and a deep liquid discharge pipe are arranged on a pressure-bearing kettle body of the premixing feeder, an insulating layer is sleeved outside the pressure-bearing kettle body to form a heat exchange jacket, a feeding valve is arranged at a feeding port of the pressure-bearing kettle body, an air inlet valve and an air outlet valve are arranged at an air outlet, a heater and a temperature sensor enter the heat exchange jacket, the air compressor is communicated with the air storage tank, the air storage tank is communicated with the air inlet valve of the premixing feeder, the feeding pipeline is connected with the feeding valve of the premixing feeder, and the discharging pipeline is connected with the high-position discharging valve of the premixing feeder.

Description

Integrated high-pressure feeding system of autoclave

Technical Field

The utility model belongs to the technical field of reactor charging devices, and particularly relates to an integrated high-pressure feeding system of an autoclave.

Background

An autoclave is an apparatus for performing chemical reactions, material synthesis and heat treatment, and is generally operated at high temperature and high pressure. By controlling the pressure within the autoclave such that certain reactions are carried out under high pressure conditions, and thus produce more efficient reaction results, many liquid phase reactions need to be carried out at high temperature and/or pressure conditions. The redox reaction is generally more efficient at high temperatures and pressures. Carlin dip-dyeing type refractory gold-containing ore in the gold industry adopts a pressure oxidation process to fully oxidize and decompose sulfide minerals in an autoclave to extract gold, but reaction materials are required to be added in time and continuously in the production process, and the current reaction kettle cannot continuously feed and discharge under the condition of high pressure, so that the production requirement can not be met far. Therefore, a continuous feeding device is needed to be provided, and the pneumatic conveying device belongs to the pneumatic conveying in a dense phase and is suitable for conveying the materials of particles and powder which are not easy to break and fluid. Is widely applied to the industries of casting, chemical engineering, medicine and grain. The pneumatic conveying device, the conveying pipeline, the pressurizer and the like form a sealed conveying system, and an automatic control electric control system can be matched to realize continuous feeding of the whole system of the autoclave under the PLC automatic control high-pressure environment.

Disclosure of Invention

In order to overcome the problems, the utility model provides an integrated high-pressure feeding system of an autoclave, which adopts the principle of pneumatic conveying to realize continuous feeding and discharging production of the autoclave, and is applied to the gold industry, wherein the Carin dip-dyeing type refractory gold-containing ore is subjected to gold extraction by adopting a pressure oxidation pretreatment process.

The integrated high-pressure feeding system of the autoclave comprises an integrated protective shell 1, a first premixing feeder 2, a second premixing feeder 3, an air storage tank 4 and an air compressor 5, wherein the first premixing feeder 2, the second premixing feeder 3, the air storage tank 4 and the air compressor 5 are sequentially fixed in the integrated protective shell 1 from left to right, and a feeding pipeline 13 and a discharging pipeline 14 are arranged in the integrated protective shell 1;

The premixing feeder I2 and the premixing feeder II3 have the same structure and comprise a mechanical stirrer 21, a pressure-bearing kettle body 22, a heater 26, a liquid level switch 27, a temperature sensor 29 and a deep liquid discharge pipe 222, wherein the pressure-bearing kettle body 22 is provided with the mechanical stirrer 21 and the deep liquid discharge pipe 222, an insulating layer 224 is sleeved outside the pressure-bearing kettle body 22, a heat exchange jacket 223 is formed between the pressure-bearing kettle body 22 and the insulating layer 224, a feed inlet and a vent are formed in the top of the pressure-bearing kettle body 22, an outlet is formed in the bottom of the pressure-bearing kettle body, a feed valve 23 is arranged at the feed inlet, an air inlet valve 24 and an exhaust valve 25 are arranged at the vent in the bottom, an exhaust valve 210 is arranged at the outlet of the bottom of the pressure-bearing kettle body 22, the liquid level switch 27 is fixed at the top of the pressure-bearing kettle body 22 and extends into the pressure-bearing kettle body, the heater 26 and the temperature sensor 29 respectively penetrate through the insulating layer 224 and enter the heat exchange jacket 223, a high-level liquid discharge valve 28 is arranged at the top of the pressure-bearing kettle body 222, the air compressor 5 is communicated with a pipeline of the air storage tank 4, the top of the air storage tank 4 is respectively communicated with the feed inlet valve 24 of the premixing feeder 2 and the premixing feeder 2, the air inlet 24 of the premixing feeder 3 respectively, the air inlet 13 of the premixing feeder 3 respectively, the feed inlet is respectively communicated with the feed inlet valve 13 and the premixing feeder 23, the premixing feeder 2 and the premixing feeder 3 respectively, and the premixing valve 2 are respectively, and the inlet valve 2 are respectively connected.

An exhaust port 228 is arranged on the side wall above the heat preservation layer 224, and a heat exchange medium inlet and outlet 227 is arranged at the bottom, wherein the exhaust port 228 and the heat exchange medium inlet and outlet 227 are both communicated with the heat exchange jacket 223.

The air inlet valve 24 and the air outlet valve 25 are respectively communicated with the air inlet of the pressure-bearing kettle body 22 through pipelines.

The pressure-bearing kettle body 22 is internally provided with a turbulence plate 221, and the bottom of the heat preservation layer 224 is fixed with a kettle body support 226.

The mechanical stirrer 21 comprises a motor, a stirring shaft and stirring blades, wherein the motor is fixed on the pressure-bearing kettle body 22 through a stirrer sealing support 225, the stirring shaft is connected to a driving shaft of the motor and driven to rotate by the motor, the stirring shaft penetrates through the top of the pressure-bearing kettle body 22 and stretches into the pressure-bearing kettle body 22, and a plurality of blades are fixed at the bottom of the stirring shaft positioned in the pressure-bearing kettle body 22.

The heater 26 penetrates into the heat exchange jacket 223 from the bottom of the heat preservation layer 224, and the temperature sensor 29 penetrates into the heat exchange jacket 223 from the lower side wall of the heat preservation layer 224.

The integrated protection shell 1 comprises a support row frame 11 and a protection outer plate 12, wherein the support row frame 11 is arranged in the protection outer plate 12, and a first premixing feeder 2, a second premixing feeder 3, an air storage tank 4 and an air compressor 5 are all fixed on the support row frame 11.

The deep liquid discharge pipe 222 is fixed on the top of the autoclave body 22 and extends into the autoclave body, and the deep liquid discharge pipe 222 above the autoclave body 22 is provided with a high-level discharge valve 28.

The utility model has the beneficial effects that:

The setting of premixing feeder can accomplish in advance and wait to treat ore pulp mixed medicine and preheat, has improved autoclave pressure oxidation ore pulp efficiency, and its top advances ore deposit and degree of depth play liquid structural design and combines the level gauge control to feed under high-pressure gas pressure, has realized premixing feeder one/two requirement of alternate continuous feed function under the high-pressure environment, and the modularization design is convenient for engineering application maintenance management, better safe convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings to be used in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

FIG. 2 is a schematic diagram of a premix feeder according to the present utility model.

The device comprises a first integrated protection shell, a second premixed feeder, a first 3 premixed feeder, a second 4 air storage tank, a 5 air compressor and a 6 PLC control module, wherein the first integrated protection shell is provided with a first air inlet and a second air inlet;

11-supporting row frames, 12-protective outer plates, 13-feeding pipelines and 14-discharging pipelines;

21-mechanical stirrer, 22-pressure-bearing kettle body, 23-feeding valve, 24-air inlet valve, 25-air outlet valve, 26-heater, 27-liquid level switch, 28-high-position discharging valve, 29-temperature sensor and 210-discharging valve:

221-turbulent flow plates, 222-deep liquid discharge pipes, 223-heat exchange jackets, 224-heat insulation layers, 225-stirrer sealing supports, 226-kettle supports, 227-heat exchange medium inlets and outlets, 228-exhaust ports;

41-pressure sensor.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

Example 1

As shown in fig. 1-2, an integrated high-pressure feeding system of an autoclave comprises an integrated protective shell 1, a first premixing feeder 2, a second premixing feeder 3, a gas storage tank 4 and an air compressor 5, wherein the first premixing feeder 2, the second premixing feeder 3, the gas storage tank 4 and the air compressor 5 are sequentially fixed in the integrated protective shell 1 from left to right, and a feeding pipeline 13 and a discharging pipeline 14 are arranged in the integrated protective shell 1;

The air inlet valve 24 and the air outlet valve 25 are respectively communicated with the air inlet of the pressure-bearing kettle body 22 through pipelines. The vent of the pressure-bearing kettle body 22 passes through the heat preservation layer 224 and is positioned above the heat preservation layer 224.

The integrated protection shell 1 comprises a support row frame 11 and a protection outer plate 12, wherein the support row frame 11 is arranged in the protection outer plate 12, and a first premixing feeder 2, a second premixing feeder 3, an air storage tank 4 and an air compressor 5 are all fixed on the support row frame 11. The first premixing feeder 2 and the second premixing feeder 3 are respectively fixed on the supporting line frame 11 through kettle body supports 226 at the bottoms of the first premixing feeder and the second premixing feeder, and the air storage tank 4 is fixed on the supporting line frame 11 through bottom supporting rods.

The deep liquid discharge pipe 222 passes through the heat insulation layer 224 and extends into the pressure-bearing kettle body 22, and is fixed at the top of the pressure-bearing kettle body 22, and the deep liquid discharge pipe 222 above the pressure-bearing kettle body 22 is provided with a high-position discharge valve 28.

Firstly, opening a heat exchange medium inlet/outlet 227 to enable a heat exchange medium to be introduced into a heat exchange jacket 223, opening a high-position exhaust valve 25 and a feed valve 23 of a premixing feeder I2, continuously feeding materials to be mixed and reacted into a pressure-bearing kettle body 22 of the premixing feeder I2 through the feed valve 23, closing the high-position exhaust valve 25 and the feed valve 23 after the temperature reaches a specified requirement, opening an air inlet valve 24, starting a mechanical stirrer 21 to supply constant pressure gas to an air storage tank 4 when the liquid level reaches a set lower limit, realizing material flushing and mixing under the action of an internal turbulence plate 221, simultaneously starting heating the heat exchange medium in the heat exchange jacket 223 by a heater 26 arranged in the heat exchange jacket 223 of the pressure-bearing kettle body 22, heating the materials in the pressure-bearing kettle body 22 by the heat exchange medium until the material level detected by a liquid level switch 27 reaches a specified temperature, stopping working by the heater 26, and opening a high-position exhaust valve 28 and a high-pressure protection pipeline 14 to prevent the materials from being discharged by the high-position exhaust valve 28 and the high-pressure pipe 14 after the pressure sensor 41 on the air storage tank 4 is monitored to reach a certain pressure; the exhaust valve 25 and the feed valve 23 of the premixing feeder II 3 are opened at the same time of discharging the premixing feeder I2, the feed pipeline 13 of the integrated protection shell 1 starts to fill the premixing feeder II 3 with materials, the heater 26 in the heat exchange jacket 223 of the premixing feeder II 3 is started to heat, and along with the output of the materials in the premixing feeder I2, when the liquid level in the first premix feeder 2 reaches the lower limit through the liquid level switch 27, the air inlet valve 24 and the high-position discharge valve 28 on the first premix feeder 2 are closed, the air outlet valve 25 and the feeding valve 23 on the top of the first premix feeder 2 are opened, and meanwhile, the air inlet valve 24 and the high-position discharge valve 28 on the top of the second premix feeder 3 are opened, so that the alternating continuous high-pressure material output of the first premix feeder 2 and the second premix feeder 3 to the autoclave is realized. When the high pressure feed system is inactive, material is emptied through the bottom drain valve 210.

During heating, the exhaust port 228 is opened at regular time to exhaust.

Example 2

Referring to fig. 1 and 2, the utility model is composed of an integrated protection shell 1, a premixing feeder 2, a premixing feeder 3, a gas storage tank 4, an air compressor 5 and a PLC control module 6. The integrated protection shell 1 comprises a support row frame 11, a protection outer plate 12, a feeding pipeline 13 and a discharging pipeline 14, wherein a premixing feeder I2 and a premixing feeder II 3 are composed of a mechanical stirrer 21, a pressure-bearing kettle body 22, a feeding valve 23, an air inlet valve 24, an air outlet valve 25, a heater 26, a liquid level switch 27, a high-level discharging valve 28, a temperature sensor 29 and an emptying valve 210, a turbulence plate 221 and a deep liquid discharge pipe 222 are arranged in the pressure-bearing kettle body 22, and a heat exchange jacket 223, an insulating layer 224, a stirrer sealing support 225 and a kettle body support 226 are arranged outside the pressure-bearing kettle body; the mechanical stirrer 21 of the first premixing feeder 2 and the second premixing feeder 3 is fixed on the pressure-bearing kettle body 22 through a stirrer sealing support 225, the feed valve 23, the air inlet valve 24, the exhaust valve 25 and the exhaust valve 210 are communicated with the interior of the pressure-bearing kettle body 22, the liquid level switch 27 is arranged at the top of the pressure-bearing kettle body 22 and extends into the pressure-bearing kettle body, the heater 26 and the temperature sensor 29 penetrate through a heat insulation layer 224 and are fixed in a heat exchange jacket 223, the high-position discharge valve 28 is arranged on a deep discharge pipe 222, the air compressor 5 is communicated with the air storage tank 4 through a pipeline, the top of the air storage tank 4 is provided with a pressure sensor 41, the air storage tank 4 is respectively communicated with the air inlet valve 24 of the first premixing feeder 2 and the second premixing feeder 3 through a pipeline, the first premixing feeder 2, the second premixing feeder 3, the air storage tank 4 and the air compressor 5 are all fixed on a support frame 11 inside the integrated protection shell 1, the PLC control module 6 is arranged on a protection plate 12 outside the integrated protection shell 1, the feed pipe 13 of the integrated protection shell 1 is respectively connected with the feed valve 23 of the first premixing feeder 2 and the second premixing feeder 3, the discharge pipe 14 of the integrated protection shell 1 is respectively connected with the premixing feeder 2, the high-level discharge valve 28 of the premix feeder two 3 is connected.

The working process of the utility model is that the PLC control module 6 is started to set the working pressure, the temperature, the stirring rotation speed and the duration of the system. Firstly, a high-position exhaust valve 25 and a feed valve 23 of a premixing feeder I2 are opened, a feed pipeline 13 continuously feeds materials to be mixed and reacted into a pressure-bearing kettle body 22 of the premixing feeder I2 through the feed valve 23, when the liquid level reaches the lower limit of a liquid level switch 27, a top mechanical stirrer 21 is started, material flushing and mixing are realized under the action of an internal turbulence plate 221, meanwhile, a heater 26 arranged in a heat exchange jacket 223 of the pressure-bearing kettle body 22 begins to heat a heat exchange medium in the jacket 223, the heat exchange medium heats the materials in the pressure-bearing kettle body 22 until a temperature sensor 29 detects that the materials reach a specified temperature, when the material level of the premixing feeder I2 reaches the upper limit of a liquid level switch 27 and the temperature reaches a specified requirement, the high-position exhaust valve 25 and the feed valve 23 are closed, an air inlet valve 24 is opened, the air compressor 5 is started to supply constant pressure gas to an air storage tank 4, after the pressure sensor 41 of the air storage tank 4 reaches a certain pressure, the high-position exhaust valve 28 is started, the materials are continuously discharged into the pressure-bearing kettle body 22 through a deep pipe 222 and the high-position exhaust valve 28 and a discharge pipeline 14 of the integrated protective shell 1 under a certain pressure; the high-level exhaust valve 25 and the feeding valve 23 of the premixing feeder II 3 are opened at the same time of discharging the premixing feeder I2, the feeding pipeline of the integrated protective shell starts to charge the premixing feeder II 3 with materials, the premixing feeder II 3 starts a heating premixing procedure, the air inlet valve 24 and the high-level discharge valve 28 of the premixing feeder I2 are closed and the top exhaust valve 25 and the feeding valve 23 are opened at the same time as the output of the materials in the premixing feeder I2 reaches the lower limit of the liquid level switch 27, the top air inlet valve and the high-level discharge valve of the premixing feeder II 3 are opened, realize the alternate continuous high-pressure output of the material to the autoclave of the first premixing feeder 2 and the second premixing feeder 3. When the high pressure feed system is inactive, material is emptied through the bottom drain valve 210.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the scope of the present utility model is not limited to the specific details of the above embodiments, and within the scope of the technical spirit of the present utility model, any person skilled in the art may apply equivalent substitutions or alterations to the technical solution of the present utility model and the inventive concept thereof within the scope of the technical spirit of the present utility model, and these simple modifications are all within the scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.

Claims

1. The integrated high-pressure feeding system of the autoclave is characterized by comprising an integrated protective shell (1), a first premixing feeder (2), a second premixing feeder (3), an air storage tank (4) and an air compressor (5), wherein the first premixing feeder (2), the second premixing feeder (3), the air storage tank (4) and the air compressor (5) are sequentially fixed in the integrated protective shell (1) from left to right, and a feeding pipeline (13) and a discharging pipeline (14) are arranged in the integrated protective shell (1);

The premixing feeder I (2) and the premixing feeder II (3) have the same structure and comprise a mechanical stirrer (21), a pressure-bearing kettle body (22), a heater (26), a liquid level switch (27), a temperature sensor (29) and a deep liquid discharge pipe (222), wherein the pressure-bearing kettle body (22) is provided with the mechanical stirrer (21) and the deep liquid discharge pipe (222), an insulating layer (224) is sleeved outside the pressure-bearing kettle body (22) so as to form a heat exchange jacket (223) between the pressure-bearing kettle body (22) and the insulating layer (224), the top of the pressure-bearing kettle body (22) is provided with a feed inlet and an air vent, the bottom of the pressure-bearing kettle body is provided with an outlet, the feed inlet is provided with a feed valve (23), the air vent is provided with an air inlet valve (24) and an exhaust valve (25), the outlet of the bottom is provided with an exhaust valve (210), the liquid level switch (27) is fixed at the top of the pressure-bearing kettle body (22) and extends into the pressure-bearing kettle body, the heater (26) and the temperature sensor (29) respectively penetrate through the insulating layer (224) to enter the heat exchange jacket (223), the top of the deep liquid discharge pipe (222) is provided with a high-position discharge valve (28), the top of the pressure-bearing kettle (22) is provided with an air inlet (4) and an air outlet (41), and the air storage tank (4) is respectively communicated with the air storage tank (4) through the air inlet and the air inlet (4) and the air inlet (41) and the air storage tank (4) and the air inlet sensor (41) respectively The air inlet valve (24) of the premixing feeder II (3) is communicated, the feeding pipeline (13) is respectively connected with the premixing feeder I (2) and the feeding valve (23) of the premixing feeder II (3), the discharging pipeline (14) is respectively connected with the premixing feeder I (2) and the high-position discharging valve (28) of the premixing feeder II (3), the side wall above the heat preservation layer (224) is provided with an air outlet (228), the bottom is provided with a heat exchange medium inlet and outlet (227), and the air outlet (228) and the heat exchange medium inlet and outlet (227) are both communicated with the heat exchange jacket (223).

2. An integrated high pressure feeding system for autoclave according to claim 1, wherein the air inlet valve (24) and the air outlet valve (25) are respectively connected with the air vent of the autoclave body (22) through pipelines.

3. An integrated high pressure feed system for autoclave according to claim 1, wherein the autoclave body (22) incorporates turbulence plates (221) and a bottom is fixed with a autoclave body support (226).

4. An integrated high pressure feeding system for autoclave according to claim 1, wherein the mechanical stirrer (21) comprises a motor, a stirring shaft and stirring blades, wherein the motor is fixed on the autoclave body (22) through a stirrer sealing support (225), the stirring shaft is connected on a driving shaft of the motor and is driven to rotate by the motor, the stirring shaft penetrates through the top of the autoclave body (22) and extends into the autoclave body (22), and a plurality of blades are fixed at the bottom of the stirring shaft in the autoclave body (22).

5. An integrated high pressure feeding system for an autoclave according to claim 1, wherein the heater (26) penetrates the heat exchange jacket (223) from the bottom of the insulation layer (224), and the temperature sensor (29) penetrates the heat exchange jacket (223) from below the side wall of the insulation layer (224).

6. The integrated high-pressure feeding system of an autoclave according to claim 1, wherein the integrated protective shell (1) comprises a support row frame (11) and a protective outer plate (12), wherein the support row frame (11) is arranged in the protective outer plate (12), and the premixing feeder one (2), the premixing feeder two (3), the air storage tank (4) and the air compressor (5) are all fixed on the support row frame (11).

7. An integrated high-pressure feeding system of an autoclave according to claim 1, characterized in that the deep drain pipe (222) is fixed at the top of the autoclave body (22) and extends into the autoclave body, and the deep drain pipe (222) above the autoclave body (22) is provided with a high-level drain valve (28).