Evaporator for waste acid treatment based on anti-corrosion mechanism

Abstract

The invention relates to the related technical field of waste acid treatment devices, in particular to a waste acid treatment evaporator based on an anti-corrosion mechanism, which comprises a fixing frame, and a tank body is arranged on the outer wall of the fixing frame. According to the waste acid treatment evaporator based on the anti-corrosion mechanism, through the arrangement of the fixing frame and the tank body structure, in the operation process of the device, hot air passes through an oil-water separator, a stainless steel shell pipe, a temperature adjusting condenser, a liquid storage device, an electronic expansion valve and a gas-water separator, so that the hot air is in full contact with hot water; the circulation achieves the energy-saving effect by completely absorbing liquid latent heat energy, and meanwhile, a silicon carbide shell pipe is matched to perform heat exchange on heated waste acid and heated hot water through a water pump, so that the heat absorption effect is achieved, and the boiling point of materials can be reduced by pressurizing the interior of the tank body; and the effects of low-energy-consumption production and automatic material suction into the tank body for evaporation are achieved, and then the energy loss of the device is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of waste acid treatment devices, and more particularly to a waste acid treatment evaporator based on a corrosion-resistant mechanism. BACKGROUND

[0002] Evaporation is a physical process of converting liquid into gas. Generally speaking, an evaporator is an object that converts liquid into gas. A low-temperature condensed liquid passes through the evaporator and exchanges heat with the surrounding air, vaporizes and absorbs heat, achieving the effect of refrigeration.

[0003] Waste acid treatment is an endothermic reaction that generates heat during the reaction process. Since existing evaporators cannot resist the corrosion of waste acid, they cannot be used in the field of waste acid disposal. However, the other performance of the evaporator can provide a more efficient solution for waste acid treatment. The current common method is to use high-temperature steam to heat the enamel kettle for evaporation. This method is open, consumes a large amount of steam, and has a high acid leakage rate and low recovery ratio.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a waste acid treatment evaporator based on a corrosion-resistant mechanism is provided to achieve a more practical and valuable purpose. SUMMARY

[0005] The application provides a waste acid treatment evaporator and method based on a corrosion-resistant mechanism to overcome the above-mentioned defects in the prior art.

[0006] The purpose and effect of the waste acid treatment evaporator and method based on a corrosion-resistant mechanism are achieved by the following specific technical means: A waste acid treatment evaporator based on a corrosion-resistant mechanism, comprising a fixed frame, a tank body is arranged on the outer wall of the fixed frame, a pneumatic valve, a defoaming agent inlet pipe and a raw liquid inlet pipe are communicated with the inner part of the tank body respectively, a refrigeration shell pipe penetrates through the outer wall of the tank body, a drain pipe is connected to the outlet of the refrigeration shell pipe, a diaphragm pump is arranged at the bottom of the tank body, a waste liquid discharge pipe is fixedly assembled to the output port of the diaphragm pump, a connecting cover penetrates through the top of the tank body, a branch pipe penetrates through the outer wall of the connecting cover, an electrode sheet one is fixedly assembled to the inner wall of the end of the branch pipe away from the connecting cover, a compression spring is arranged on the inner wall of the branch pipe, an active pipe one is arranged on the outer wall of the compression spring, an active groove three is arranged on the outer wall of the branch pipe and is in sliding connection with the active pipe one, an electromagnetic valve one is arranged at one end of the active pipe one inside the branch pipe, an electrode sheet one is fixedly assembled to the inner wall of the active pipe one, a limiting groove is arranged on the inner wall of the active pipe one, a connecting block is fixedly assembled to the outer wall of the active pipe one, a rotating rod one is rotatably connected to the outer wall of the connecting block, a rotating rod two is rotatably connected to the end of the rotating rod one, and a limiting rod is fixedly assembled to the top of the fixed frame.

[0007] As a preferred technical scheme of the present application: the inner wall of the movable pipe one is fixedly provided with a sealing plate, the outer wall of the sealing plate is provided with an electrode sheet two, the position of the electrode sheet one corresponds to the position of the electrode sheet two, the outer wall of the fixed frame is fixedly provided with a controller, the controller is electrically connected with the electrode sheet one, the electrode sheet two and the electromagnetic valve two respectively, the outer wall of the rotating rod one is provided with a rotating groove two, the inner wall of the rotating groove two is rotatably connected with a limiting rod, the outer wall of the rotating rod one is further rotatably connected with a cross rod, the top of the tank body is provided with a rotating groove one, the inner wall of the rotating groove one is provided with a through groove, the inner wall of the through groove is provided with a movable groove one, the bottom of the inner wall of the movable groove one is provided with a movable groove two, the inner wall of the movable groove two is slidably connected with a movable pipe two, one end of the inner wall of the movable groove two is provided with a movable plate, the outer wall of the movable plate is provided with a water conveying groove fixedly provided with the outer wall of the movable pipe two, the inner wall of the movable pipe two is communicated with a filter press, the outer wall of the movable pipe two is slidably connected with a sleeve, the inner wall of the connecting cover is provided with a slot, the outer wall of the connecting cover is further penetrated through a heat recovery pipe, the inner wall of the tank body is provided with a heating coil, the right side of the tank body is respectively provided with a silicon carbide shell pipe, a stainless steel shell pipe, a temperature adjusting condensing machine, a liquid reservoir, a liquid viewing mirror, an electronic expansion valve, a jet device, a water conveying pump, a circulating water tank and an oil-water separator, the connection part of the heat recovery pipe and the connecting cover is provided with an electromagnetic valve two.

[0008] As a preferred technical scheme of the present application: the sleeve is provided with an electromagnetic valve three at the connection part of the output port of the refrigeration shell pipe, and the input port of the refrigeration shell pipe is provided with an electromagnetic valve four at the connection part with the circulating water tank, the number of the water conveying pumps is three, one of the water conveying pumps is respectively connected with the tank body and the silicon carbide shell pipe, the second water conveying pump is respectively connected with the silicon carbide shell pipe and the stainless steel shell pipe, and the third water conveying pump is respectively connected with a drain pipe and the circulating water tank.

[0009] As a preferred technical scheme of the present application: the inner wall of the rotating groove one is rotatably connected with the rotating rod one and the rotating rod two respectively, and the outer wall of the movable plate is slidably connected with the inner wall of the slot.

[0010] As a preferred technical scheme of the present application: the stainless steel shell pipe is respectively connected with the temperature adjusting condensing machine and the oil-water separator, the outer wall of the fixed frame is further fixedly provided with a gas-water separator, and the gas-water separator is connected with the oil-water separator.

[0011] As a preferred technical scheme of the present application: the refrigeration shell pipe is connected with the circulating water tank, and the circulating water tank is further connected with the liquid reservoir, the inner wall of the drain pipe is filled with distilled water, and the top of the connecting cover is provided with a warning light.

[0012] As a preferred technical scheme of the present application: the outer wall of the movable plate is fixedly provided with a micro water pump, and the output port of the micro water pump is fixedly provided with a filter press, and the end of the filter press away from the movable plate is connected with the inner wall of the insertion slot.

[0013] As a preferred technical scheme of the present application: the movable plate is connected with the inside of the silicon carbide shell pipe through the movable pipe two and the movable plate, the inside of the silicon carbide shell pipe is connected with the inside of the tank body, and the inner wall of the rotating groove two is rotatably connected with the outer wall of the limiting rod.

[0014] As a preferred technical scheme of the present application: the inside of the connecting cover is connected with the inside of the tank body through the heat recovery pipe, and the inner wall of the movable groove two is slidably connected with the outer wall of the sleeve pipe.

[0015] As a preferred technical scheme of the present application: the inner wall of the limiting groove is slidably connected with the outer wall of the branch pipe, and the inside of the movable pipe one is connected with the inside of the connecting cover through the electromagnetic valve one.

[0016] Compared with the prior art, the present application has the following beneficial effects: The evaporator for waste acid treatment based on the anti-corrosion mechanism has the following beneficial effects: the hot air is fully contacted with the hot water through the oil-water separator, the stainless steel shell pipe, the temperature-adjusting condenser, the liquid accumulator, the electronic expansion valve and the gas-water separator, the liquid latent heat energy is completely absorbed, the energy-saving effect is achieved, the heated waste acid and the heated hot water are heat-exchanged through the water pump, the heat absorption effect is achieved, the boiling point of the material is reduced through the internal pressurization of the tank body, the low-energy-consumption production is realized, the material is automatically sucked into the tank body for evaporation, and the energy consumption of the device is reduced.

[0017] The evaporator for waste acid treatment based on the anti-corrosion mechanism has the following beneficial effects: the hot air is fully contacted with the hot water through the oil-water separator, the stainless steel shell pipe, the temperature-adjusting condenser, the liquid accumulator, the electronic expansion valve and the gas-water separator, the liquid latent heat energy is completely absorbed, the energy-saving effect is achieved, the heated waste acid and the heated hot water are heat-exchanged through the water pump, the heat absorption effect is achieved, the boiling point of the material is reduced through the internal pressurization of the tank body, the low-energy-consumption production is realized, the material is automatically sucked into the tank body for evaporation, and the energy consumption of the device is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram of the present application. Figure 2 is a schematic view of a side structure of the present application; Figure 3 is a schematic view of a side structure of the present application; Figure 4 is a schematic view of a water pump structure of the present application; Figure 5 is a schematic view of a tank structure of the present application; Figure 6 is a schematic view of a Figure 5 enlarged structure at A in the present application; Figure 7 is a schematic view of a partial cross-section structure of the present application; Figure 8 is a schematic view of a Figure 7 enlarged structure at B in the present application.

[0019] Explanation of Reference Signs: 1, fixed frame; 2, tank; 3, pneumatic valve; 4, defoaming agent inlet pipe; 5, raw liquid inlet pipe; 6, waste liquid discharge pipe; 7, drain pipe; 8, connecting cover; 9, branch pipe; 10, movable pipe 1; 11, refrigeration shell pipe; 12, silicon carbide shell pipe; 13, stainless steel shell pipe; 14, temperature-adjusting condenser; 15, liquid reservoir; 16, sight glass; 17, electronic expansion valve; 18, diaphragm pump; 19, electrode sheet 1; 20, jet device; 21, water delivery pump; 22, circulating water tank; 23, heating coil; 24, sleeve pipe; 25, movable pipe 2; 26, oil-water separator; 27, rotating groove 1; 28, movable groove 1; 29, through groove; 30, movable groove 2; 31, electromagnetic valve 1; 32, movable groove 3; 33, compression spring; 34, connecting block; 35, rotating rod 1; 36, rotating groove 2; 37, limiting rod; 38, cross rod; 39, rotating rod 2; 40, movable plate; 41, water delivery groove; 42, pressure filter; 43, heat recovery pipe; 44, insertion groove; 45, limiting groove. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be further described in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0021] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] As shown in the accompanying Figure 1 to the accompanying Figure 8 : The present application provides an evaporator for waste acid treatment based on anti-corrosion mechanism, comprising a fixed frame 1, the outer wall of the fixed frame 1 is provided with a tank 2, the inner part of the tank 2 is respectively communicated with a pneumatic valve 3, a defoaming agent inlet pipe 4 and a raw liquid inlet pipe 5, the outer wall of the tank 2 penetrates a refrigeration shell pipe 11, the discharge port of the refrigeration shell pipe 11 is connected with a drain pipe 7, the bottom of the tank 2 is provided with a diaphragm pump 18, the output port of the diaphragm pump 18 is fixedly assembled with a waste liquid discharge pipe 6, the top of the tank 2 penetrates a connecting cover 8, the outer wall of the connecting cover 8 penetrates a branch pipe 9, the inner wall of the end of the branch pipe 9 away from the connecting cover 8 is fixedly assembled with an electrode sheet one 19, the inner wall of the branch pipe 9 is provided with a compression spring 33, the outer wall of the compression spring 33 abuts against a movable pipe one 10, the outer wall of the branch pipe 9 is provided with a movable groove three 32 which is slidingly connected with the movable pipe one 10, the end of the movable pipe one 10 located in the branch pipe 9 is provided with a solenoid valve one 31, the inner wall of the movable pipe one 10 is fixedly assembled with the electrode sheet one 19, the inner wall of the movable pipe one 10 is provided with a limiting groove 45, the outer wall of the movable pipe one 10 is fixedly assembled with a connecting block 34, the outer wall of the connecting block 34 is rotatably connected with a rotating rod one 35, the end of the rotating rod one 35 is rotatably connected with a rotating rod two 39, the top of the fixed frame 1 is fixedly assembled with a limiting rod 37.

[0024] In the above, through the fixed frame 1, the tank 2, the pneumatic valve 3, the defoaming agent inlet pipe 4, the raw liquid inlet pipe 5, the waste liquid discharge pipe 6, the drain pipe 7, the connecting cover 8, the branch pipe 9, the electromagnetic valve one 31, the movable groove three 32, the compression spring 33, the connecting block 34, the rotating rod one 35, the rotating groove two 36, the movable plate 40, the water conveying groove 41, the filter press 42 structure, so that the device in the use process, using the heat generated by the tank 2 inside the pressure difference, so that the electromagnetic valve one 31 in the opening activity pipe one 10 will slide along the inner wall of the branch pipe 9, so that the compression spring 33 compression and remove the activity pipe one 10, because the movement of the activity pipe one 10 makes the electrode sheet one 19 and electrode sheet two contact, to ensure that the user can observe the internal temperature of the device, at the same time in the activity pipe one 10 movement process can also through the rotation of the rotating rod two 39 to make the water filled in the filter press 42 is extruded, realize the effect of filtering water, avoid too much impurities affect the service life of the equipment, thereby prolonging the service life of the device.

[0025] In a preferred embodiment: the inner wall of the activity pipe one 10 is fixedly assembled with a sealing plate, and the outer wall of the sealing plate is assembled with an electrode sheet two, and the position of the electrode sheet one 19 corresponds to the position of the electrode sheet two, and the connecting part of the heat recovery pipe 43 and the connecting cover 8 is provided with an electromagnetic valve two, and the outer wall of the fixed frame 1 is fixedly assembled with a controller, and the controller is electrically connected with the electrode sheet one 19, the electrode sheet two and the electromagnetic valve two respectively.

[0026] In the above, through the sealing plate and the heat recovery pipe 43 structure, the device in the operation process, through the heat generated by the activity pipe one 10 movement, so as to ensure the normal operation of the device, and the filter press 42 in the compression of the water filtration operation, the contact between the electrode sheet one 19 and the electrode sheet two will make the electromagnetic valve two open to make the heat flow in the activity pipe one 10 flow out and return to the fixed frame 1, at the same time make the activity pipe one 10 reset, thereby ensuring that the subsequent operation of the device will not be affected.

[0027] In one preferred embodiment: the inner wall of the movable tube one 10 is fixedly provided with a sealing plate, and the outer wall of the sealing plate is provided with the electrode sheet two, and the position of the electrode sheet one 19 corresponds to the position of the electrode sheet two, the outer wall of the fixed frame 1 is fixedly provided with a controller, and the controller is electrically connected with the electrode sheet one 19, the electrode sheet two and the electromagnetic valve two respectively, the outer wall of the rotating rod one 35 is provided with a rotating groove two 36, the inner wall of the rotating groove two 36 is rotationally connected with a limiting rod 37, the outer wall of the rotating rod one 35 is further rotationally connected with a cross rod 38, the top of the tank body 2 is provided with a rotating groove one 27, the inner wall of the rotating groove one 27 is provided with a through groove 29, the inner wall of the through groove 29 is provided with a movable groove one 28, the bottom of the inner wall of the movable groove one 28 is provided with a movable groove two 30, the inner wall of the movable groove two 30 is slidably connected with a movable tube two 25, one end of the inner wall of the movable groove two 30 is provided with a movable plate 40, the outer wall of the movable plate 40 is provided with a water conveying groove 41 fixedly provided with the outer wall of the movable tube two 25, the inner wall of the movable tube two 25 is communicated with a pressure filter 42, the outer wall of the movable tube two 25 is slidably connected with a sleeve 24, the inner wall of the connecting cover 8 is provided with a slot 44, the outer wall of the connecting cover 8 is further penetrated by a heat recovery pipe 43, the inner wall of the tank body 2 is provided with a heating coil 23, the right side of the tank body 2 is respectively provided with a silicon carbide shell pipe 12, a stainless steel shell pipe 13, a temperature adjusting condensing machine 14, a liquid reservoir 15, a liquid viewing mirror 16, an electronic expansion valve 17, a jet device 20, a water conveying pump 21, a circulating water tank 22 and an oil-water separator 26, and the connection between the heat recovery pipe 43 and the connecting cover 8 is provided with an electromagnetic valve two.

[0028] In the above, through the structure of the water conveying pump 21, the device uses three water conveying pumps 21 to convey water during use, so that the hot water is conveyed through the pipeline, and then the condensing operation is performed through the temperature adjusting condensing machine 14 to complete the heat recovery operation, thereby realizing complete absorption of liquid latent heat energy to achieve energy saving effect and improving the practicability of the device.

[0029] In one preferred embodiment: the inner wall of the rotating groove one 27 is rotationally connected with the rotating rod one 35 and the rotating rod two 39 respectively, and the outer wall of the movable plate 40 is slidably connected with the inner wall of the slot 44.

[0030] In the above, through the structure of the movable plate 40 and the slot 44, when the rotating rod two 39 rotates, the rotating rod two 39 pushes the movable plate 40 to move, so that the pressure filter 42 is compressed, so that the water in the pressure filter 42 is extruded to pass through the pressure filter 42 for filtration, thereby reducing impurities in the water and prolonging the service life of the components.

[0031] In one preferred embodiment: the stainless steel shell pipe 13 is communicated with the temperature adjusting condensing machine 14 and the oil-water separator 26 respectively, and the outer wall of the fixed frame 1 is further fixedly provided with an air-water separator, and the air-water separator is communicated with the oil-water separator 26.

[0032] In the above, through the setting of the steam-water separator and the stainless steel shell pipe 13 structure, when the water pump transports the material, heat exchange will occur between the heated waste acid and the heated hot water, achieving the effect of heat absorption, and the water vapor will separate from the air during the transportation process, thereby avoiding the mixing of the material and affecting the preparation effect of the equipment, and further ensuring the normal operation of the device.

[0033] In a preferred embodiment: the refrigeration shell pipe 11 is in communication with the circulating water tank 22, and the circulating water tank 22 is also in communication with the liquid reservoir 15, the inner wall of the drain pipe 7 is filled with distilled water, and the top of the connecting cover 8 is provided with a warning light.

[0034] In the above, through the setting of the refrigeration shell pipe 11 and the circulating water tank 22 structure, during the operation of the device, the water pump 21 will transport water to the tank body 2, and the pressure inside the tank body 2 will increase, thereby causing the boiling point of the material to decrease due to the pressure difference between the inside and outside of the tank body 2, thereby achieving the effect of low-temperature evaporation of the material. If the electrode sheet one 19 is not in contact with the electrode sheet two during operation, the warning light will light up to prove that the temperature inside the tank body 2 is not sufficient to heat the material for reaction, which facilitates the user to open the heating coil 23 in time to heat the inside of the tank body 2, reduces the operation time of the heating coil 23, and further reduces the energy consumption of the device.

[0035] In a preferred embodiment: the outer wall of the movable plate 40 is fixedly provided with a micro water pump, the output port of the micro water pump is fixedly provided with a pressure filter 42, and the end of the pressure filter 42 away from the movable plate 40 is connected with the inner wall of the insertion slot 44.

[0036] In the above, through the setting of the micro water pump and the sleeve 24 and the movable pipe two 25 structure, the micro water pump can extract hot water from each pipe, so that the heated water enters the pressure filter 42. When the water is heated, impurities will condense, so the filtration operation of the impurities can be completed through the pressure filter 42, reducing the accumulation of impurities and the erosion of the components. During the processing of the raw liquid, the pressure difference can also be used to automatically adsorb the raw liquid into the tank body 2 for evaporation, and during the operation, the insertion slot 44 can complete the compression operation of the pressure filter 42 for the movement of the movable plate 40, thereby ensuring that the water in the pressure filter 42 is fully squeezed to complete the filtration operation.

[0037] In a preferred embodiment: the movable plate 40 is in communication with the inside of the silicon carbide shell pipe 12 through the movable pipe two 25 and the movable plate 40, respectively, the inside of the silicon carbide shell pipe 12 is in communication with the inside of the tank body 2, and the inner wall of the rotating groove two 36 is rotatably connected with the outer wall of the limiting rod 37.

[0038] In the above, through the limiting rod 37 and the cross rod 38 structure, the cross rod 38 is used to limit the rotating groove two 36, so that the movable plate 40 can be pushed to extrude the filter press 42 to complete the filtration of the water body. The carbonized silicon shell pipe 12 can be heated and heated again to improve the compression resistance of the carbonized silicon material, thereby avoiding the explosion of the carbonized silicon shell pipe 12 during operation, solving the problem of low corrosion resistance of the traditional equipment, and improving the operation performance and safety of the device.

[0039] In a preferred embodiment: the inside of the connecting cover 8 is connected with the inside of the tank body 2 through the regenerative tube 43, and the inner wall of the movable groove two 30 is slidingly connected with the outer wall of the sleeve pipe 24.

[0040] In the above, through the regenerative tube 43 structure, after the heat enters the branch pipe 9, the compression spring 33 will be compressed, so that the electrode sheet one 19 and the electrode sheet two will be in contact, thereby cooperating with the controller to open the electromagnetic valve two inside the regenerative tube 43 to make the heat return to the tank body 2, thereby reducing heat loss and ensuring the subsequent operation of the device, without the need for manual operation, and improving the automation of the device.

[0041] In a preferred embodiment: the inner wall of the limiting groove 45 is slidingly connected with the outer wall of the branch pipe 9, and the inside of the movable pipe one 10 is connected with the inside of the connecting cover 8 through the electromagnetic valve one 31.

[0042] In the above, through the limiting groove 45 structure, when the movable pipe one 10 moves due to thermal expansion effect, the movable pipe one 10 is always in close contact with the inner wall of the branch pipe 9, thereby avoiding the large-area leakage of heat, and improving the air tightness of the device.

[0043] Working principle: first, the user assembles the device is complete, can be through the operation of three water pumps make hot water and backflow of air contact, so that the heat energy in hot water transfer to the air in the tank 2 inside heating operation, realize heat recovery, while the air will be separated from the steam, to ensure that the gas backflow will not carry impurities, to completely absorb the liquid latent heat energy to achieve energy saving effect, waste liquid waste acid can also be heated with hot water heat exchange, and silicon carbide due to heating and heat recovery secondary heating characteristics, its pressure resistance is improved, and itself has the characteristics of corrosion resistance, improve the safety and performance of the device in the running process and the effect of heat recovery, and thus improve the energy saving effect of the device, and in the operation process, the temperature inside the tank 2 rises so that the movable pipe 10 along the inner wall of the branch pipe 9 sliding, so that the movable pipe 10 stretch out and facilitate the user to observe the operation state inside the equipment, realize the effect of monitoring temperature, also can use the warning light when the temperature is not up to standard to warn the user, open the heating function of heating coil 23 in time to heat the tank 2, ensure the normal operation of the device, also can reduce the operation time of heating coil 23, further improve the energy saving effect of the device, while the movement of movable pipe 10 can also drive the limit rod 37 to rotate, so that the movable plate 40 moves and makes the filter press 42 be compressed, so that the water in the filter press 42 is extruded and separated from the impurities to complete the filtering operation, thereby reducing the erosion of impurities to the assembly, prolong the service life of the device.

[0044] Embodiments of the application are presented for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the precise forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. An evaporator for waste acid treatment based on an anti-corrosion mechanism, comprising a fixing frame (1), characterized in that: The outer wall of the fixed frame (1) is provided with a tank (2). The inside of the tank (2) is connected to a pneumatic valve (3), a defoamer inlet pipe (4), and a raw liquid inlet pipe (5). A refrigeration shell pipe (11) passes through the outer wall of the tank (2). A drain pipe (7) is connected to the outlet of the refrigeration shell pipe (11). A diaphragm pump (18) is provided at the bottom of the tank (2). A waste liquid discharge pipe (6) is fixedly installed at the outlet of the diaphragm pump (18). A connecting cover (8) passes through the top of the tank (2). A branch pipe (9) passes through the outer wall of the connecting cover (8). An electrode plate (19) is fixedly installed on the inner wall of the branch pipe (9) away from the connecting cover (8). A compression spring (33) is provided on the inner wall of the branch pipe (9). The outer wall of the compression spring (33) abuts against the movable tube one (10), the outer wall of the branch pipe (9) is provided with the movable groove three (32) which is slidably connected to the movable tube one (10), the movable tube one (10) is provided with a solenoid valve one (31) at one end inside the branch pipe (9), the inner wall of the movable tube one (10) is fixedly fitted with an electrode plate one (19), the inner wall of the movable tube one (10) is provided with a limit groove (45), the outer wall of the movable tube one (10) is fixedly fitted with a connecting block (34), the outer wall of the connecting block (34) is rotatably connected with a rotating rod one (35), the end of the rotating rod one (35) is rotatably connected with a rotating rod two (39), and the top of the fixed frame (1) is fixedly fitted with a limit rod (37).

2. The evaporator for waste acid treatment based on an anti-corrosion mechanism according to claim 1, characterized in that: The inner wall of the movable tube 1 (10) is fixedly fitted with a sealing plate, and the outer wall of the sealing plate is fitted with an electrode plate 2. The position of the electrode plate 1 (19) corresponds to the position of the electrode plate 2. The outer wall of the fixed frame (1) is fixedly fitted with a controller, and the controller is electrically connected to the electrode plate 1 (19), the electrode plate 2 and the solenoid valve 2 respectively. The outer wall of the rotating rod 1 (35) is provided with a rotating groove 2 (36). The inner wall of the rotating groove 2 (36) is rotatably connected with a limit rod (37). The outer wall of the rotating rod 1 (35) is also rotatably connected with a crossbar (38). The top of the tank body (2) is provided with a rotating groove 1 (27). The inner wall of the rotating groove 1 (27) is provided with a through groove (29). The inner wall of the through groove (29) is provided with a movable groove 1 (28). The bottom of the inner wall of the movable groove 1 (28) is provided with a movable groove 2 (30). The inner wall of the movable groove 2 (30) is slidably connected with a movable tube 2 (25). A movable plate (40) is provided at one end of the inner wall of the movable tube 2 (30). The outer wall of the movable plate (40) is provided with a water delivery trough (41) that is fixedly assembled with the outer wall of the movable tube 2 (25). The inner wall of the movable tube 2 (25) is connected to a filter press (42). The outer wall of the movable tube 2 (25) is slidably connected to a sleeve (24). The inner wall of the connecting cover (8) is provided with a slot (44). The outer wall of the connecting cover (8) is also connected to a heat recovery pipe (). 43), the inner wall of the tank (2) is provided with a heating coil (23), and the right side of the tank (2) is provided with a silicon carbide shell tube (12), a stainless steel shell tube (13), a temperature-controlled condenser (14), a liquid storage tank (15), a sight glass (16), an electronic expansion valve (17), an ejector (20), a water pump (21), a circulating water tank (22), and an oil-water separator (26). The connection between the heat recovery pipe (43) and the connecting cover (8) is provided with a solenoid valve.

3. An evaporator for waste acid treatment based on an anti-corrosion mechanism according to claim 2, characterized in that: The sleeve (24) is connected to the outlet of the refrigeration shell tube (11) with a solenoid valve three, and the inlet of the refrigeration shell tube (11) is connected to the circulating water tank (22) with a solenoid valve four. There are three water pumps (21). One water pump (21) is connected to the tank (2) and the silicon carbide shell tube (12) respectively. The second water pump (21) is connected to the silicon carbide shell tube (12) and the stainless steel shell tube (13) respectively. The third water pump (21) is connected to the drain pipe (7) and the circulating water tank (22) respectively.

4. An evaporator for waste acid treatment based on an anti-corrosion mechanism according to claim 2, characterized in that: The inner wall of the first rotating groove (27) is rotatably connected to the first rotating rod (35) and the second rotating rod (39) respectively, and the outer wall of the movable plate (40) is slidably connected to the inner wall of the slot (44).

5. An evaporator for waste acid treatment based on an anti-corrosion mechanism according to claim 2, characterized in that: The stainless steel shell tube (13) is connected to the temperature-controlled condenser (14) and the oil-water separator (26) respectively. The outer wall of the fixed frame (1) is also fixedly equipped with a gas-water separator, and the gas-water separator is connected to the oil-water separator (26).

6. An evaporator for waste acid treatment based on an anti-corrosion mechanism according to claim 1, characterized in that: The refrigeration shell tube (11) is connected to the circulating water tank (22), and the circulating water tank (22) is also connected to the liquid storage tank (15). The inner wall of the drain pipe (7) is filled with distilled water, and the top of the connecting cover (8) is equipped with a warning light.

7. An evaporator for waste acid treatment based on an anti-corrosion mechanism according to claim 2, characterized in that: A micro water pump is fixedly mounted on the outer wall of the movable plate (40), and the output port of the micro water pump is fixedly mounted on the outer wall of the filter press (42). The end of the filter press (42) away from the movable plate (40) is connected to the inner wall of the slot (44).

8. An evaporator for waste acid treatment based on an anti-corrosion mechanism according to claim 2, characterized in that: The movable plate (40) is connected to the interior of the silicon carbide shell tube (12) through the movable tube two (25) and the movable plate (40), respectively. The interior of the silicon carbide shell tube (12) is connected to the interior of the tank body (2). The inner wall of the rotating groove two (36) is rotatably connected to the outer wall of the limiting rod (37).

9. An evaporator for waste acid treatment based on an anti-corrosion mechanism according to claim 2, characterized in that: The interior of the connecting cover (8) is connected to the interior of the tank (2) through the heat recovery pipe (43), and the inner wall of the movable groove (30) is slidably connected to the outer wall of the sleeve (24).

10. An evaporator for waste acid treatment based on an anti-corrosion mechanism according to claim 1, characterized in that: The inner wall of the limiting groove (45) is slidably connected to the outer wall of the branch pipe (9), and the interior of the movable pipe (10) is connected to the interior of the connecting cover (8) through the solenoid valve (31).

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