Waste sulfuric acid recovery device

Abstract

The utility model discloses a waste sulfuric acid recovery device, which relates to the technical field of waste sulfuric acid treatment, and comprises a tank body and a cleaning device, a detachable guide plate is arranged in the tank body, a heating cavity is arranged below the guide plate, the heating cavity is communicated with a filtering tank, a separation cavity is arranged above the guide plate, and the separation cavity is communicated with the filtering tank. The bottom of the separation cavity is communicated with the liquid collection tank, and the top of the separation cavity is communicated with the gas collection tank; a heating device and a discharge port are arranged at the bottom of the tank body, a detachable condensation cover and the cleaning device are arranged at the top of the tank body, and the cleaning device comprises a top plate, a connecting pipe, a fixed seat, a connecting rod, a brush, a first motor, a belt and a bearing. The cleaning device is installed on the tank body, automatic cleaning can be completed, the position of the brush in the cleaning device can be adjusted, all corners of the tank body can be cleaned conveniently, and the cleaning efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste sulfuric acid treatment technical field especially relates to a kind of waste sulfuric acid recovery device. BACKGROUND

[0002] Waste sulfuric acid is waste sulfuric acid, because its harm degree to environment is very high, all need to be recycled.Processed.Waste sulfuric acid contains particulate impurities, solute impurities and more moisture, particulate impurities are usually removed using filtration method, solute impurities are usually removed using chemical reaction precipitation method, and moisture is usually removed using evaporation method.Waste sulfuric acid is heated and concentrated, and after the work of removing solute impurities by chemical reaction, impurities are stored in the corner position of the bottom of tank and are difficult to clean. SUMMARY

[0003] The utility model aims at providing a kind of waste sulfuric acid recovery device, solve the problem that the impurities stored in the corner position of the bottom of tank are difficult to clean after waste sulfuric acid is heated and concentrated and the work of removing solute impurities by chemical reaction mentioned in background art.

[0004] The utility model adopts the following technical solutions:

[0005] The utility model relates to a kind of waste sulfuric acid recovery device, comprising: tank, the bottom of the tank is provided with heating device and discharge port, the tank is provided with detachable deflector, the deflector is the horn structure of inverted buckle, the deflector below is heating cavity, the heating cavity is communicated with filter tank, the deflector top is separation cavity, the bottom of the separation cavity is communicated with liquid collection tank, the top of the separation cavity is communicated with gas collection tank;

[0006] Condensing cover, the condensing cover is detachably connected with the top of the tank and cooperates;

[0007] Cleaning device, the cleaning device includes top plate, the top plate is detachably connected with the top of the tank and cooperates, the top plate center position is provided with connecting pipe, the connecting pipe is rotatably connected on the top plate, the top end of the connecting pipe is connected with first motor by belt, the first motor is fixedly connected on the top plate;The bottom end of the connecting pipe is fixedly connected with fixed seat, the fixed seat is movably connected with connecting rod, and the connecting rod is fixedly connected with brush.

[0008] Further, the filter tank is provided with filter plate, the top of the filter tank is provided with injection port, and the pipeline, which is communicated with the heating cavity, is provided with injection valve.

[0009] Further, the inner wall of the tank body is provided with a baffle edge protrusion, the baffle edge protrusion is a circular ring structure, the bottom edge of the baffle edge protrusion is provided with an inclined angle; the bottom edge of the flow guide plate is provided with an inclined angle matched with the bottom edge of the baffle edge protrusion, the flow guide plate is buckled on the baffle edge protrusion; the flow guide plate is communicated with the liquid collecting tank above the lowest part of the inclined angle.

[0010] Further, the gas collecting tank is located near the lower position of the condensing cover, the gas collecting tank is provided with an activated carbon adsorption plate, the activated carbon adsorption plate is provided with an exhaust port above, and the activated carbon adsorption plate is provided with an alkaline solution below; the gas collecting tank is communicated with the separation cavity through the air inlet pipe, the air inlet pipe penetrates through the activated carbon adsorption plate, and the lower end of the air inlet pipe is arranged in the alkaline solution below the activated carbon adsorption plate, and a plurality of air holes are arranged on the wall of the air inlet pipe.

[0011] Further, the bottom of the tank body is provided with a cylindrical inner protrusion, and the heating device is arranged in the cylindrical inner protrusion; the exhaust port is arranged at the lowest part of the tank body.

[0012] Further, the condensing cover is threadedly connected and matched with the inner wall top of the tank body, and a plurality of cold circulation pipelines are arranged in the condensing cover.

[0013] Further, the top plate is threadedly connected and matched with the inner wall top of the tank body; and the connecting pipe is rotatably connected with the top plate through a bearing.

[0014] Further, the fixing seat is provided with a reserved cavity, and the connecting rod is slidably arranged in the reserved cavity; a second motor is fixedly connected in the fixing seat, a gear is arranged on the output end of the second motor, and a tooth is arranged on the connecting rod, and the gear is meshedly connected with the tooth.

[0015] Further, a screw rod is arranged in the connecting pipe, the screw rod is threadedly and rotatably connected with the connecting pipe, and the bottom end of the screw rod is abuttingly connected with the connecting rod.

[0016] Still further, an oxidizing agent tank is arranged on the tank body, and the oxidizing agent tank is communicated with the heating cavity.

[0017] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0018] The utility model discloses a detachable cleaning device, which is installed on the tank body, the position of the brush in the cleaning device can be adjusted, and the corners of the tank body can be conveniently cleaned, the utility model improves the cleaning efficiency while ensuring the cleaning effect of the corners of the tank body. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model discloses further illustrate below combining with the drawing.

[0020] Figure 1 It is a waste sulphuric acid recovery device structure schematic view of the utility model;

[0021] Figure 2 It is a tank body structure schematic view of the utility model of a waste sulphuric acid recovery device;

[0022] Figure 3 It is a tank body sectional view of the utility model of a waste sulphuric acid recovery device;

[0023] Figure 4 It is a structure schematic view of the deflector in the utility model of a waste sulphuric acid recovery device;

[0024] Figure 5 It is a structure schematic view of the cleaning device in the utility model of a waste sulphuric acid recovery device;

[0025] Figure 6 It is a cleaning device sectional view in the utility model of a waste sulphuric acid recovery device.

[0026] Mark 1, tank body; 1-1, baffle edge protruding; 1-2, cylindrical inner protruding; 2, deflector; 3, heating cavity; 4, separation cavity; 5, filter tank; 5-1, filter plate; 5-2, injection inlet; 5-3, injection valve; 6, liquid collection tank; 7, gas collection tank; 7-1, activated carbon adsorption plate; 7-2, air inlet pipe; 7-3, exhaust port; 8, heating device; 9, discharge port; 10, condensing cover; 10-1, cold circulation pipeline; 11, cleaning device; 11-1, top plate; 11-2, connecting pipe; 11-3, fixed seat; 11-4, connecting rod; 11-5, brush; 11-6, first motor; 11-7, belt; 11-8, bearing; 11-9, pre-reserved cavity; 11-10, second motor; 11-11, gear; 11-12, gear tooth; 11-13, screw rod; 12, oxidant tank. DETAILED DESCRIPTION

[0027] In order to make the technical problem, technical scheme and beneficial effect that the utility model wants to solve more clearly clear, following combining with the drawing and example, the utility model is further detailed.

[0028] For example, Figures 1 to 2As shown, this embodiment discloses a waste sulfuric acid recovery device, including a tank 1. A heating device 8 and a discharge port 9 are provided at the bottom of the tank 1. A detachable guide plate 2 is provided inside the tank 1. The guide plate 2 has an inverted trumpet-shaped structure. Below the guide plate 2 is a heating chamber 3, which is connected to a filter tank 5. Above the guide plate 2 is a separation chamber 4. The bottom of the separation chamber 4 is connected to a liquid collection tank 6, and the top of the separation chamber 4 is connected to a gas collection tank 7.

[0029] The top of the tank 1 is provided with a removable condensate cover 10, and the top of the tank 1 is detachably connected to the cleaning device 11.

[0030] like Figure 3 As shown, a filter plate 5-1 is installed inside the filter tank 5, and an injection port 5-2 is provided on the top of the filter tank 5 for injecting waste sulfuric acid. An injection valve 5-3 is installed on the pipe connecting the filter tank 5 and the heating chamber 3. After the waste sulfuric acid is injected, it is filtered by the filter plate 5-1. By opening the injection valve 5-3, the filtered waste sulfuric acid can be injected into the heating chamber 3 of the tank 1.

[0031] The condenser cover 10 is detachably connected to the top of the inner wall of the tank 1 via threads. Several cold circulation pipes 10-1 are provided inside the condenser cover 10. The cold circulation pipes 10-1 are connected to an external cold water pipe. By injecting cold water into the cold circulation pipes 10-1, the gas heated and evaporated in the separation chamber 4 can be cooled and condensed.

[0032] like Figure 3 and Figure 4 As shown, a flange protrusion 1-1 is provided on the inner wall of tank 1. The flange protrusion 1-1 has a circular structure and an inclined angle at its bottom edge. The bottom edge of the guide plate 2 has an inclined angle that matches the bottom edge of the flange protrusion 1-1, and the guide plate 2 is fastened to the flange protrusion 1-1. The lowest point of the inclined angle of the guide plate 2 is connected to the liquid collection tank 6. The gas evaporated after heating the waste sulfuric acid enters the separation chamber 4 through the funnel-shaped structure of the guide plate 2 and adheres to the surface of the condenser cover 10. After cooling and condensation, the gas flows down the surface of the condenser cover 10, the upper surface of the guide plate 2, and the inner wall of tank 1, and finally flows into the liquid collection tank 6.

[0033] The gas collection tank 7 is located near the lower position of the condensing cover 10, the activated carbon adsorption plate 7-1 is arranged in the gas collection tank 7, the exhaust port 7-3 is arranged above the activated carbon adsorption plate 7-1, and the alkaline solution is arranged below the activated carbon adsorption plate 7-1. The gas collection tank 7 is communicated with the separation cavity 4 through the air inlet pipe 7-2, the air inlet pipe 7-2 penetrates through the activated carbon adsorption plate 7-1, and the lower end of the air inlet pipe 7-2 is arranged in the alkaline solution below the activated carbon adsorption plate 7-1. A plurality of air holes are arranged on the wall of the air inlet pipe 7-2 in the alkaline solution. Part of the gas in the separation cavity 4 enters the gas collection tank 7 through the air inlet pipe 7-2, and enters the alkaline solution through the air holes on the wall of the air inlet pipe 7-2 for neutralization reaction. Part of the gas not absorbed by the alkaline solution is adsorbed and filtered through the activated carbon adsorption plate 7-1, and finally discharged from the exhaust port 7-3.

[0034] The bottom of the tank body 1 is provided with a cylindrical inner protrusion 1-2, and the cylindrical inner protrusion 1-2 is provided with a heating device 8. In the embodiment, the heating device 8 is an electric heater, and the heating device 8 is connected with an external power supply through a pipeline. The electric heater is a prior art means, and will not be described in detail here. The waste sulfuric acid in the heating cavity 3 is heated by the heating device 8, and the design of the cylindrical inner protrusion 1-2 can effectively heat the waste sulfuric acid at different depths. In the embodiment, the discharge port 9 is arranged at the lowest position of the tank body 1. A valve is arranged on the discharge port 9 to facilitate the final control of the discharge of the heated and concentrated waste sulfuric acid in the heating cavity 3.

[0035] As shown in Figure 5 and Figure 6 , the cleaning device 11 includes a top plate 11-1 which is detachably connected with the inner wall top of the tank body 1 through threads. The top plate 11-1 is provided with a connecting pipe 11-2 at the center position, the connecting pipe 11-2 is rotatably connected to the top plate 11-1 through a bearing 11-8, the top end of the connecting pipe 11-2 is power-connected with a first motor 11-6 through a belt 11-7, and the first motor 11-6 is fixedly connected to the top plate 11-1.

[0036] The bottom end of the connecting pipe 11-2 is fixedly connected with a fixed seat 11-3, the fixed seat 11-3 is movably connected with a connecting rod 11-4, and the connecting rod 11-4 is fixedly connected with a brush 11-5. A reserved cavity 11-9 is arranged in the fixed seat 11-3, and the connecting rod 11-4 is slidingly arranged in the reserved cavity 11-9. A second motor 11-10 is fixedly connected in the fixed seat 11-3, a gear 11-11 is arranged at the output end of the second motor 11-10, a tooth 11-12 is arranged on the connecting rod 11-4, and the gear 11-11 is in meshing connection with the tooth 11-12. A screw rod 11-13 is arranged in the connecting pipe 11-2, the screw rod 11-13 is in threaded connection with the connecting pipe 11-2, and the bottom end of the screw rod 11-13 is in abutting connection with the connecting rod 11-4. Anti-skid lines are arranged on the contact surfaces of the screw rod 11-13 and the connecting rod 11-4, the screw rod 11-13 is screwed and tightly abuts against the connecting rod 11-4, and the connecting rod 11-4 can be prevented from sliding out due to centrifugal force when the connecting pipe 11-2 rotates.

[0037] When the first motor 11-6 rotates, the connecting pipe 11-2 is driven to rotate through the belt 11-7, the connecting pipe 11-2 drives the fixed seat 11-3, the connecting rod 11-4 and the brush 11-5 to rotate, and then the brush 11-5 cleans the side wall of the tank body 1. If it is necessary to adjust the rotating radius of the connecting rod 11-4, the second motor 11-10 is started, the gear 11-11 rotates, the gear 11-11 is in meshing connection with the tooth 11-12, and then the connecting rod 11-4 moves left and right, that is, the rotating radius of the connecting rod 11-4 is adjusted, finally the screw rod 11-13 is screwed and tightly abuts against the connecting rod 11-4 to be locked, so that each corner of the tank body 1 can be conveniently cleaned.

[0038] In the embodiment, the tank body 1 is further provided with an oxidizing agent tank 12, and the oxidizing agent tank 12 is communicated with the heating cavity 3 through a pipeline with a valve. The oxidizing agent tank 12 is provided with an oxidizing agent, when the waste sulfuric acid in the heating cavity 3 is heated, the valve of the pipeline of the oxidizing agent tank 12 is opened, and the oxidizing agent is added into the heating cavity 3, and the organic impurities in the waste sulfuric acid are further removed through the oxidation reaction. It should be noted that the tank body and the pipeline in the device are made of corrosion-resistant materials.

[0039] As shown in Figures 1 to 6 The use process of the utility model is as follows:

[0040] First, from the injection port 5-2 injection of waste sulfuric acid, waste sulfuric acid injection after the filter plate 5-1 filter, open injection valve 5-3 can be filtered into the waste sulfuric acid tank 1 of the heating chamber 3. Open the valve of the oxidant tank 12 pipeline, the oxidant is added to the heating chamber 3, start the heating device 8, the mixed liquid in the heating chamber 3 is heated and concentrated. In the heating process, the evaporated gas from the guide plate 2 into the separation chamber 4 of the horn structure, and adhere to the surface of the condensing cover 10, through the cooling condensation along the condensing cover 10 surface, the upper surface of the guide plate 2 and the inner wall of the tank 1 flow down, and finally flow into the liquid collection tank 6. Part of the gas is through the air inlet pipe 7-2 into the alkaline solution in the gas collection tank 7 for neutralization reaction, part of the gas not absorbed by the alkaline solution through the activated carbon adsorption plate 7-1 adsorption filter, finally from the exhaust port 7-3. After heating and concentration, the valve on the discharge port 9 is opened and discharged after the liquid in the heating chamber 3 is cooled.

[0041] When cleaning is needed, the condensing cover 10 is removed first, and then the guide plate 2 is removed, the top plate 11-1 of the cleaning device 11 is installed on the tank 1, the first motor 11-6 is started, the first motor 11-6 drives the connecting pipe 11-2 to rotate through the belt 11-7, the connecting pipe 11-2 drives the fixed seat 11-3, the connecting rod 11-4 and the brush 11-5 to rotate, and the brush 11-5 can complete the cleaning of the inner wall of the tank 1. When some corners cannot be cleaned, the second motor 11-10 is started, the gear 11-11 rotates and drives the left and right movement, and then the rotating radius of the connecting rod 11-4 can be adjusted, so that the brush 11-5 is more attached to the inner wall of the tank 1, and the corners of the inner wall and the bottom of the tank 1 can be cleaned.

[0042] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements of the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A spent sulfuric acid recovery apparatus, characterized by, The utility model relates to a kind of liquid-gas separation device, including: Tank body (1), the bottom of the tank body (1) is provided with heating device (8) and discharge port (9), detachable flow guide plate (2) is provided in the tank body (1), the flow guide plate (2) is inverted flared structure, heating cavity (3) below the flow guide plate (2), the heating cavity (3) is communicated with filter tank (5), separation cavity (4) above the flow guide plate (2), the bottom of the separation cavity (4) is communicated with liquid collection tank (6), the top of the separation cavity (4) is communicated with gas collection tank (7); Condensing cover (10), the top of the tank body (1) is detachably connected with the condensing cover (10); Cleaning device (11), the top of the tank body (1) is detachably connected with the top plate (11-1) of cleaning device (11), the top plate (11-1) is provided with connecting pipe (11-2) in the position of circle center, connecting pipe (11-2) is rotatably connected on the top plate (11-1), the top of connecting pipe (11-2) is connected with the power of first motor (11-6) by belt (11-7), first motor (11-6) is fixedly connected on the top plate (11-1);The bottom of connecting pipe (11-2) is fixedly connected with fixed seat (11-3), fixed seat (11-3) is movably connected with connecting rod (11-4) in, connecting rod (11-4) is fixedly connected with brush (11-5).

2. The spent sulfuric acid recovery apparatus according to claim 1, characterized by: Filtering plate (5-1) is provided in the filter tank (5), the top of the filter tank (5) is provided with injection inlet (5-2), injection valve (5-3) is provided on the pipeline that the filter tank (5) is communicated with the heating cavity (3).

3. The waste sulfuric acid recovery apparatus according to claim 1, characterized by: The inner wall of the tank body (1) is provided with a flange (1-1), the flange (1-1) is a circular ring structure, the bottom edge of the flange (1-1) is provided with an inclined angle; The bottom edge of the flow guide plate (2) is provided with an inclined angle matched with the bottom edge of the flange (1-1), and the flow guide plate (2) is buckled on the flange (1-1); The lowest part of the inclined angle of the flow guide plate (2) is communicated with the liquid collection tank (6).

4. The spent sulfuric acid recovery apparatus according to claim 1, characterized by: The gas collection tank (7) is located near the lower position of the condensing cover (10), the gas collection tank (7) is provided with activated carbon adsorption plate (7-1), the gas outlet (7-3) is provided above the activated carbon adsorption plate (7-1), the alkaline solution is provided below the activated carbon adsorption plate (7-1), the gas collection tank (7) is communicated with the separation cavity (4) through the air inlet pipe (7-2), the air inlet pipe (7-2) passes through the activated carbon adsorption plate (7-1), and the lower end of the air inlet pipe (7-2) is arranged in the alkaline solution below the activated carbon adsorption plate (7-1), a plurality of air holes are provided on the wall of the air inlet pipe (7-2).

5. The spent sulfuric acid recovery apparatus according to claim 1, characterized by: The bottom of the tank body (1) is provided with a cylindrical inner protrusion (1-2), and the cylindrical inner protrusion (1-2) is provided with the heating device (8). The discharge port (9) is arranged at the lowest position of the tank body (1).

6. The spent sulfuric acid recovery apparatus according to claim 1, characterized by: The condensing cover (10) is threadedly connected to the top inner wall of the tank body (1), and a plurality of cold circulation pipelines (10-1) are arranged in the condensing cover (10).

7. The spent sulfuric acid recovery apparatus according to claim 1, characterized by: The top plate (11-1) is threadedly connected to the top inner wall of the tank body (1). The connecting pipe (11-2) is rotatably connected to the top plate (11-1) through a bearing (11-8).

8. The spent sulfuric acid recovery apparatus according to claim 1, characterized by: The fixing seat (11-3) is internally provided with a reserved cavity (11-9), and the connecting rod (11-4) is slidably arranged in the reserved cavity (11-9). The fixing seat (11-3) is fixedly connected with a second motor (11-10), the output end of the second motor (11-10) is provided with a gear (11-11), the connecting rod (11-4) is provided with a gear tooth (11-12), and the gear (11-11) is meshedly connected with the gear tooth (11-12).

9. The spent sulfuric acid recovery apparatus according to claim 8, characterized by: The connecting pipe (11-2) is internally provided with a screw rod (11-13), the screw rod (11-13) is threadedly and rotatably connected to the connecting pipe (11-2), and the bottom end of the screw rod (11-13) is abuttingly connected to the connecting rod (11-4).

10. The spent sulfuric acid recovery apparatus of claim 1, wherein: The tank body (1) is provided with an oxidant tank (12), and the oxidant tank (12) is communicated with the heating cavity (3).

Images