Mixed acid recovery device

Abstract

The utility model relates to the technical field of mixed acid recovery equipment, and discloses a mixed acid recovery device which comprises a cooling cylinder, a filtering reaction cylinder clamped in the cooling cylinder, a stirring component arranged in the filtering reaction cylinder and used for bidirectionally stirring mixed acid, a first bevel gear, a second bevel gear, a third bevel gear, a sleeve rod and a rotating rod, the sleeve rod is rotationally connected with the rotating rod and the filtering reaction cylinder and fixedly connected with the third bevel gear, the second bevel gear is fixedly connected with the rotating rod and is in transmission connection with the first bevel gear and the third bevel gear, and when the second bevel gear and the third bevel gear rotate relatively, the large stirring paddle and the small stirring paddle which are connected with the second bevel gear and the third bevel gear rotate respectively; according to the utility model, vertical stirring is realized at the same time, then cooling is realized through the cooling cylinder, and solid-liquid separation is realized through the filtering reaction cylinder, so that a closed system without waste acid discharge can be formed through the promoted circulation, useful substances can be recovered, the economic cost is reduced, and good economic benefits and environmental benefits are brought.

Description

Technical Field

[0001] The utility model belongs to the technical field of mixed acid recovery equipment, and specifically relates to a mixed acid recovery device. Background Art

[0002] Every year, my country discharges nearly one million cubic meters of industrial waste acid. Chemical plants, chemical fiber plants, metal surface treatment industries and electroplating industries discharge a large amount of acidic wastewater in the process of acid production. If these industrial acidic wastewaters are discharged directly, they will corrode pipelines, damage crops, harm aquatic life such as fish, destroy the ecological environment, and endanger human health. Therefore, industrial acidic wastewater must be treated to meet national emission standards before it can be discharged.

[0003] Existing methods for recycling waste acid usually adopt chemical methods, ion exchange methods and solvent extraction methods, and most of the treatments for mixed acid wastewater are to weaken its acidity for re-discharge. This not only fails to achieve secondary utilization of resources, but also may waste raw materials, seriously increasing economic costs, thereby affecting economic and environmental benefits. In addition, since most mixed acid wastewater is extremely harmful to the human body, it often requires manpower to complete the recycling process, which may touch the mixed acid wastewater, resulting in poor safety and easy accidents due to improper operation during recycling.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A mixed acid recovery device comprises a cooling cylinder, a filtering reaction cylinder is clamped inside the cooling cylinder, a stirring assembly for bidirectional stirring of the mixed acid is arranged inside the filtering reaction cylinder, the stirring assembly comprises a first bevel gear, a second bevel gear, a third bevel gear, a sleeve rod and a rotating rod, the sleeve rod is rotationally connected to the rotating rod and the filtering reaction cylinder and is fixedly connected to the third bevel gear, the second bevel gear is fixedly connected to the rotating rod and is transmission-connected to the first bevel gear, and the third bevel gear is transmission-connected to the second bevel gear via the first bevel gear.

[0007] As a preferred embodiment of the utility model, a separation liquid collecting cylinder is welded inside the cooling cylinder, the interior of the separation liquid collecting cylinder is a V-shaped cavity, a circle of annular baffles is welded inside the V-shaped cavity, a plurality of rotating holes are opened on the annular baffle, a circular ring for rotation is arranged in the rotating hole, the separation liquid collecting cylinder is connected with a plurality of clamping blocks through the circular ring rotation, a circular hole is opened on the top surface and one side curved surface of the cooling cylinder respectively, a coolant inlet is welded on the circular hole on the top surface, a circular tube is welded in the circular hole on the curved surface, a coolant output hose is detachably connected to the circular tube, and a hose clamp for clamping the coolant output hose is welded above the curved circular hole of the cooling cylinder.

[0008] As a preferred embodiment of the utility model, there is a circle of annular grooves on the top of the filtering reaction cylinder, the height of the annular groove is greater than or equal to the annular baffle inside the separation liquid collecting cylinder and its diameter is less than or equal to the diameter of the annular baffle, a circle of circular ring plates for limiting are arranged on the top of the annular groove, the inner diameter of the circular ring plate is equal to the inner diameter of the annular groove, and the outer diameter is less than or equal to the diameter of the V-shaped cavity inside the separation liquid collecting cylinder, two handles are welded on the top of the circular ring plate, and a plurality of bayonet ports with the same shape as the clamping block are opened inside, the clamping block is clamped to the bayonet port, and the separation liquid collecting cylinder clamps the filtering reaction cylinder and locks it through the clamping block.

[0009] As a preferred embodiment of the utility model, a circular hole is opened on one side curved surface of the separation liquid collecting cylinder, and a separation liquid outlet for collecting the mixed acid liquid after the reaction is arranged in the circular hole. The separation liquid outlet is located directly above the top of the cooling cylinder, and a top plate is fixedly connected to the filtering reaction cylinder by bolts directly above.

[0010] As a preferred embodiment of the utility model, a connecting hole is opened at the center of the top plate, and a fixed connecting seat is welded above the connecting hole. Two annular connecting blocks are respectively provided on both sides of the fixed connecting seat, and the two annular connecting blocks are connected by a U-shaped connecting rod. The first annular connecting block connecting the fixed connecting seat and the top plate has the same diameter as the connecting hole, and bearings for fixing and rotating are provided inside. The connecting sleeve rod is rotated by the bearing. The inner diameter of the second annular connecting block is greater than or equal to the rotating rod, and a second bearing is provided inside, and the rotating rod is rotatably connected by the second bearing.

[0011] As a preferred embodiment of the utility model, the top end of the sleeve rod is fixedly connected to the third bevel gear, and the bottom is fixedly connected to a large stirring paddle. The interior of the sleeve rod is a cylindrical through cavity, and a shaft ring for fixing the position of the rotating rod and rotating is provided in the through cavity. A column hole with a diameter greater than or equal to the rotating rod is provided inside the third bevel gear. The rotating rod is rotatably connected to the sleeve rod through the shaft ring and rotates in the column hole of the third bevel gear. The bottom of the rotating rod is fixedly connected to a small stirring paddle, and the second bevel gear is fixedly connected on the curved surface.

[0012] As a preferred embodiment of the utility model, a rotating motor is placed above the top plate, a through hole is opened inside the U-shaped connecting rod of the fixed connecting seat, a rotating rod is connected to the output end of the rotating motor, and the rotating rod passes through the through hole and is fixedly connected to one side of the first bevel gear, the first bevel gear is rotatably connected to the fixed connecting seat through the rotating rod and the through hole, and the second bevel gear is transmission connected to the third bevel gear by meshing with the first bevel gear.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The second bevel gear and the third bevel gear are in relative positions, and the two are not fixedly connected, so when they rotate, the large stirring paddle and the small stirring paddle connected to the two will rotate separately to achieve simultaneous stirring up and down, thereby promoting mixing, and then through the cooperation of the filtering reaction cylinder and the mixed acid collection cylinder, as well as the cooling of the cooling cylinder, crystallization and liquid separation are achieved. The circulation promoted in this way can form an acid liquid closed system without waste acid discharge, so as to recover useful substances, thereby reducing economic costs while bringing good economic and environmental benefits.

[0015] 2. When the reaction is completed, the staff disassembles and cleans the device by pulling the handle to avoid touching the mixed acid wastewater during the disassembly process. In addition, the entire device is designed to be completely closed during the reaction, and the separated liquid outlet is used to recover the separated liquid, reducing the possibility of staff touching the mixed acid wastewater. The operation is simple and ensures its safety, thereby reducing the possibility of accidents due to improper operation to a certain extent.

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture:

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 It is a partial structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the stirring component of the present utility model.

[0022] In the figure: 10, cooling cylinder; 11, cooling liquid inlet; 12, mixed acid collection cylinder; 13, clamping block; 14, filtering reaction cylinder; 15, handle; 16, bayonet; 17, cooling liquid output hose; 18, hose clamp; 19, separation liquid outlet; 20, top plate; 21, fixed connection seat; 22, rotating motor; 23, first bevel gear; 24, second bevel gear; 25, third bevel gear; 26, sleeve rod; 27, rotating rod; 28, large stirring paddle; 29, small stirring paddle. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0024] A mixed acid recovery device, such as Figure 1 and Figure 4 As shown, it includes a cooling cylinder 10, a filtering reaction cylinder 14 is clamped inside the cooling cylinder 10, a stirring assembly for bidirectional stirring of mixed acid is arranged inside the filtering reaction cylinder 14, and the stirring assembly includes a first bevel gear 23, a second bevel gear 24, a third bevel gear 25, a sleeve rod 26 and a rotating rod 27, the sleeve rod 26 is rotatably connected to the rotating rod 27 and the filtering reaction cylinder 14 and is fixedly connected to the third bevel gear 25, the second bevel gear 24 is fixedly connected to the rotating rod 27 and is transmission-connected to the first bevel gear 23, and the third bevel gear 25 is transmission-connected to the second bevel gear 24 through the first bevel gear 23; as shown Figure 1 and Figure 3 As shown, a separation liquid collecting cylinder 12 is welded inside the cooling cylinder 10, and the interior of the separation liquid collecting cylinder 12 is a V-shaped cavity. A circle of annular baffles is welded inside the V-shaped cavity, and a plurality of rotating holes are opened on the annular baffles. A circular ring for rotation is arranged in the rotating hole. The separation liquid collecting cylinder 12 is connected to a plurality of clamping blocks 13 through the circular ring rotation. A circular hole is opened on the top surface and one side curved surface of the cooling cylinder 10 respectively, and a coolant inlet 11 is welded on the circular hole on the top surface, and a circular tube is welded in the circular hole on the curved surface. A coolant output hose 17 is detachably connected to the circular tube, and a hose clamp 18 for clamping the coolant output hose 17 is welded above the circular hole on the curved surface of the cooling cylinder 10; as shown Figure 1 and Figure 2As shown, there is a circle of annular grooves above the filter reaction cylinder 14, the height of the annular groove is greater than or equal to the annular baffle inside the separation liquid collection cylinder 12 and its diameter is less than or equal to the diameter of the annular baffle, and a circle of circular ring plates for limiting are arranged on the top of the annular groove, the inner diameter of the circular ring plate is equal to the inner diameter of the annular groove, and the outer diameter is less than or equal to the diameter of the V-shaped cavity inside the separation liquid collection cylinder 12, two handles 15 are welded on the top of the circular ring plate, and a plurality of bayonet ports 16 with the same shape as the clamping block 13 are opened inside, the clamping block 13 is clamped to the bayonet port 16, and the separation liquid collection cylinder 12 clamps the filter reaction cylinder 14 and locks it through the clamping block 13; as shown Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a circular hole is opened on one side curved surface of the separation liquid collecting cylinder 12, and a separation liquid outlet 19 for collecting the mixed acid liquid after the reaction is arranged in the circular hole. The separation liquid outlet 19 is located directly above the top of the cooling cylinder 10, and a top plate 20 is fixedly connected to the filtering reaction cylinder 14 by bolts.

[0025] The working principle is as follows. When using the device, first place the filter reaction cylinder 14 in the separation liquid collection cylinder 12, align the bayonet 16 with the block 13, and rotate the block 13 to make the block 13 and the bayonet 16 vertical to clamp the position of the filter reaction cylinder 14, and then pour the mixed acid wastewater and the materials required for the reaction, fix the top plate 20 and the stirring assembly by bolts, and use the stirring assembly to stir the mixed acid wastewater and the reaction materials to make them fully combined, and then let them stand. Here, the vacuum degree or negative pressure parameter can be adjusted according to the chemical reaction needs of the mixed acid wastewater. Since the overall structure of the filter reaction cylinder 14 uses the membrane dialysis principle, its material is the dialysis filtration material. The crystals produced in the mixed acid wastewater are filtered and infiltrated using the principle of dialysis, so that the crystals after sufficient cooling are filtered in the filter reaction cylinder 1 4, and then the separation liquid enters the separation liquid collecting cylinder 12 through the wall of the filtering reaction cylinder 14, and then is sucked out by the separation liquid outlet 19. Here, the temperature of the coolant needs to be controlled according to the cooling needs. The coolant that does not meet the temperature requirements can be discharged through the coolant output hose, and then new coolant is poured into the coolant inlet 11; when the final reaction is completed, the staff can disassemble and clean the device by pulling the handle 15 to avoid touching the mixed acid wastewater during the disassembly process. In addition, the entire device is completely sealed during the reaction, and the separation liquid outlet 19 is used to recycle the separated liquid, which reduces the possibility of the staff touching the mixed acid wastewater. The operation is simple and ensures the safety of its use, thereby reducing the possibility of accidents due to improper operation to a certain extent.

[0026] like Figure 4As shown, a connection hole is opened at the center of the top plate 20, and a fixed connection seat 21 is welded above the connection hole. Two annular connection blocks are respectively provided on both sides of the fixed connection seat 21. The two annular connection blocks are connected by a U-shaped connection rod. The first annular connection block connecting the fixed connection seat 21 and the top plate 20 has the same diameter as the connection hole, and bearings for fixing and rotating are arranged inside. The connecting sleeve rod 26 is rotated by the bearing. The inner diameter of the second annular connection block is greater than or equal to the rotating rod 27, and a second bearing is arranged inside, and the rotating rod 27 is rotatably connected by the second bearing; as shown Figure 4 As shown, the top of the sleeve rod 26 is fixedly connected to the third bevel gear 25, and the bottom is fixedly connected to a large stirring paddle 28. The interior of the sleeve rod 26 is a cylindrical through cavity, and a shaft ring is provided in the through cavity to fix the position of the rotating rod 27 and rotate. The interior of the third bevel gear 25 is provided with a column hole with a diameter greater than or equal to the rotating rod 27. The rotating rod 27 is rotatably connected to the sleeve rod 26 through the shaft ring and rotates in the column hole of the third bevel gear 25. The bottom of the rotating rod 27 is fixedly connected to a small stirring paddle 29, and the curved surface is fixedly connected to the second bevel gear 24; as shown Figure 4 As shown, a rotating motor 22 is placed above the top plate 20, a through hole is opened inside the U-shaped connecting rod of the fixed connecting seat 21, and a rotating rod is connected to the output end of the rotating motor 22. The rotating rod passes through the through hole and is fixedly connected to one side of the first bevel gear 23. The first bevel gear 23 is rotationally connected to the fixed connecting seat 21 through the rotating rod and the through hole, and the second bevel gear 24 is transmission-connected to the third bevel gear 25 by meshing with the first bevel gear 23.

[0027] The working principle is as follows. Since the components of the mixed acid solution are mixed, it is often necessary to add corresponding reagents or materials for coordinated reactions according to its components before cooling and crystallization. Some materials may be powders or solids. In order to ensure the full progress of the reaction, they need to be fully stirred. In view of this situation, when using the device, after adding the mixed acid wastewater, start the rotating motor 22 to drive the first bevel gear 23 to rotate, and mesh the second bevel gear 24 and the third bevel gear 25. Since the second bevel gear 24 and the third bevel gear 25 are in relative positions and the two are not fixedly connected, the large stirring paddle 28 and the small stirring paddle 29 connected to the two will rotate separately during rotation to achieve simultaneous stirring up and down, thereby promoting mixing. After the cooperation of the filtering reaction cylinder 14 and the mixed acid collection cylinder 12, and the cooling of the cooling cylinder 10, crystallization and liquid separation are achieved. The circulation promoted in this way can form an acid liquid closed system without waste acid discharge, so as to recover useful substances, thereby reducing economic costs while bringing good economic and environmental benefits.

[0028] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A mixed acid recovery device, comprising a cooling cylinder (10), characterized in that: A filtering reaction cylinder (14) is clamped inside the cooling cylinder (10); a stirring assembly for bidirectional stirring of mixed acid is arranged inside the filtering reaction cylinder (14); the stirring assembly comprises a first bevel gear (23), a second bevel gear (24), a third bevel gear (25), a sleeve rod (26) and a rotating rod (27); the sleeve rod (26) is rotationally connected to the rotating rod (27) and the filtering reaction cylinder (14) and is fixedly connected to the third bevel gear (25); the second bevel gear (24) is fixedly connected to the rotating rod (27) and is transmission-connected to the first bevel gear (23); the third bevel gear (25) is transmission-connected to the second bevel gear (24) via the first bevel gear (23).

2. A mixed acid recovery device according to claim 1, characterized in that: A separation liquid collecting cylinder (12) is welded inside the cooling cylinder (10), the interior of the separation liquid collecting cylinder (12) is a V-shaped cavity, a ring-shaped baffle is welded inside the V-shaped cavity, a plurality of rotating holes are formed on the ring-shaped baffle, a circular ring for rotation is arranged in the rotating hole, the separation liquid collecting cylinder (12) is connected to a plurality of clamping blocks (13) through the circular ring, a circular hole is formed on the top surface and one side curved surface of the cooling cylinder (10), a coolant inlet (11) is welded on the circular hole on the top surface, a circular tube is welded in the circular hole on the curved surface, a coolant output hose (17) is detachably connected to the circular tube, and a hose clamp (18) for clamping the coolant output hose (17) is welded above the circular hole on the curved surface of the cooling cylinder (10).

3. A mixed acid recovery device according to claim 1, characterized in that: A circle of annular grooves is formed above the filtering reaction cylinder (14); the height of the annular grooves is greater than or equal to the annular baffle inside the separation liquid collecting cylinder (12) and the diameter of the annular grooves is less than or equal to the diameter of the annular baffles; a circle of annular plates for limiting is formed on the top of the annular grooves; the inner diameter of the annular plates is equal to the inner diameter of the annular grooves and the outer diameter is less than or equal to the diameter of the V-shaped cavity inside the separation liquid collecting cylinder (12); two handles (15) are welded above the annular plates and a plurality of bayonet ports (16) having the same shape as the clamping block (13) are formed inside the annular plates; the clamping block (13) is engaged with the bayonet ports (16); the separation liquid collecting cylinder (12) clamps and locks the filtering reaction cylinder (14) through the clamping block (13).

4. A mixed acid recovery device according to claim 2, characterized in that: A circular hole is provided on a curved surface on one side of the separation liquid collecting cylinder (12), and a separation liquid outlet (19) for collecting the mixed acid liquid after the reaction is provided in the circular hole. The separation liquid outlet (19) is located directly above the top of the cooling cylinder (10), and a top plate (20) is fixedly connected to the filtering reaction cylinder (14) directly above by bolts.

5. A mixed acid recovery device according to claim 4, characterized in that: A connection hole is provided at the center of the top plate (20), a fixed connection seat (21) is welded above the connection hole, two annular connection blocks are respectively provided on both sides of the fixed connection seat (21), and the two annular connection blocks are connected via a U-shaped connection rod, the first annular connection block connecting the fixed connection seat (21) and the top plate (20) has the same diameter as the connection hole, and a bearing for fixing and rotating is provided inside, and a connecting sleeve rod (26) is rotated via the bearing, and the inner diameter of the second annular connection block is greater than or equal to the rotating rod (27), a second bearing is provided inside, and the second bearing is rotatably connected to the rotating rod (27).

6. A mixed acid recovery device according to claim 1, characterized in that: The top end of the sleeve rod (26) is fixedly connected to the third bevel gear (25), and the bottom end is fixedly connected to a large stirring paddle (28). The interior of the sleeve rod (26) is a cylindrical through cavity, and a shaft ring is arranged in the through cavity to fix the position of the rotating rod (27) and rotate. The interior of the third bevel gear (25) is provided with a column hole with a diameter greater than or equal to that of the rotating rod (27). The rotating rod (27) is rotatably connected to the sleeve rod (26) through the shaft ring and rotates in the column hole of the third bevel gear (25). The bottom end of the rotating rod (27) is fixedly connected to a small stirring paddle (29), and the curved surface is fixedly connected to the second bevel gear (24).

7. A mixed acid recovery device according to claim 4, characterized in that: A rotating motor (22) is placed above the top plate (20); a through hole is provided inside the U-shaped connecting rod of the fixed connecting seat (21); a rotating rod is connected to the output end of the rotating motor (22); the rotating rod passes through the through hole and is fixedly connected to one side of the first bevel gear (23); the first bevel gear (23) is rotationally connected to the fixed connecting seat (21) via the rotating rod and the through hole; the second bevel gear (24) is transmission-connected to the third bevel gear (25) by meshing with the first bevel gear (23).

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