Device for producing iron oxide powder through cold rolling acid regeneration

Abstract

The invention discloses a device for producing iron oxide powder through cold rolling acid regeneration, and relates to the technical field of cold rolling acid regeneration iron oxide powder. The device for producing the iron oxide powder through cold rolling acid regeneration comprises a base, a sealing tank assembly is arranged on the upper surface of the base, a communicating assembly is arranged on the surface of the sealing tank assembly, and a pressure relief touch control assembly is arranged at the top of the sealing tank assembly. By means of the pressure relief touch control assembly and the spraying purification assembly, in the using process, when the internal pressure of the tank body is increased, the tank body can conduct pressure relief operation automatically, the air pump and the water pump can be controlled to work synchronously under the action of the pressure while pressure relief is conducted, and gas obtained after pressure relief is fed into the shell through the air pump; gas in the shell is adsorbed and filtered by the purified diluent through the water pump, so that emission of irritant gas and harmful gas is reduced, harm to physical and psychological health of workers in the using process is reduced, and meanwhile pollution to the atmospheric environment is also reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cold-rolled acid-regenerated iron oxide powder, in particular to a device for producing iron oxide powder by cold-rolled acid-regeneration. Background Art

[0002] Cold rolling acid regeneration iron oxide powder is an important by-product of the hydrochloric acid regeneration process of cold rolling pickling in steel mills. In the cold rolling pickling plant, when hydrochloric acid is used to pickle steel plates, the iron oxide on the surface of the plate reacts with hydrochloric acid to form ferrous chloride or ferric chloride and dissolves in the pickling solution. As the pickling process proceeds, the iron ion concentration in the pickling solution increases and the free HCl concentration decreases accordingly. In order to maintain the concentration of free HCl in the pickling acid, the waste acid solution needs to be sent to the acid regeneration device. In the acid regeneration unit, the iron chloride is roasted and oxidized to generate HCl gas and Fe2O3 small particles. HCl is absorbed to generate regenerated acid with a concentration of 18-20%, which is sent back to the pickling line for recycling. Fe2O3 is produced as iron oxide powder. The cold rolling acid regeneration process is mainly divided into two parts: one is the silicon removal part, and the other is the roasting part. In the silicon removal part, an oxidation process is added after the improvement, 4Fe2++O2+4H+=4Fe3++2H2O, which consumes hydrogen ions, increases the pH value to a certain extent, reduces the amount of ammonia water or ammonium carbonate, and also produces a part of trivalent iron ions, and produces a part of ferric hydroxide in advance, which will adsorb silicon, aluminum and other elements in the acid solution, prolong the reaction time, and enhance the effect of impurity removal. During production, when the waste acid solution flows out of the leaching tower, the pH value of its free acid is about 1.5-2.0, and the acid solution overflows into the ammonia reaction tank. 20% ammonia water is added to the ammonia reaction tank to increase the pH value to between 4.0 and 4.5. The device for producing iron oxide powder by regenerating cold-rolled acid in this application is specifically an ammonia reaction tank to be used in this silicon removal process.

[0003] However, in the production process of the iron oxide powder, ammonia water or ammonium carbonate is used to carry out an ammonia reaction to increase the pH value of the solution. However, both must remain sealed during use. At the same time, the pressure in the reaction tank will increase during use, and the reaction tank cannot automatically release pressure during use. At the same time, the irritating and harmful gases generated after the pressure relief cannot be purified and treated, which will endanger the physical and mental health of the workers during subsequent use and will also cause pollution to the atmospheric environment. Summary of the Invention

[0004] The object of the present invention is to provide a device for producing iron oxide powder by cold rolling acid regeneration, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a device for producing iron oxide powder by cold-rolled acid regeneration, comprising a base, a sealed tank assembly being provided on the upper surface of the base, a connecting assembly being provided on the surface of the sealed tank assembly, a pressure relief touch assembly being provided on the top of the sealed tank assembly, and a spray purification assembly being provided on one side of the pressure relief touch assembly.

[0006] The sealed tank assembly comprises a tank body fixedly mounted on a base, the top of the tank body is connected to a feeding pipe, and the top of the feeding pipe is threadedly connected to a sealing plug.

[0007] The provided sealing tank assembly and connecting assembly facilitate the sealing and feeding operations during use, and also facilitate the lifting and moving operations of the entire device, thereby maintaining the stability of the device, facilitating subsequent operations, and improving the ease of use of the device.

[0008] The pressure relief touch assembly includes a sealing tube connected to the top of the tank body, the interior of the sealing tube is connected to a pressure relief pipe, a return spring is fixedly installed on the inner bottom wall of the pressure relief pipe, a piston is fixedly installed on the top of the return spring, a piston ring is fixedly installed on the inside of the pressure relief pipe, a limit rod is fixedly installed on the top of the limit rod, a baffle is fixedly installed on the top of the baffle, a touch switch is fixedly installed on the bottom of the baffle, the top of the sealing tube is connected to an air outlet pipe, one end of the air outlet pipe is connected to an air pump, the air inlet of the air pump is connected to one end of the air outlet pipe, and the other end of the air pump is connected to an air supply pipe.

[0009] The spray purification assembly includes a shell fixedly mounted on the top of the tank body, a mesh plate fixedly mounted inside the shell, an adsorption plate fixedly mounted on the top of the mesh plate, one end of the air supply pipe passes through the top of the shell, the adsorption plate and the mesh plate in sequence and extends to the bottom of the mesh plate, a water pump is fixedly mounted on one side of the top of the shell, the water outlet of the water pump is connected to a water outlet pipe, one end of the water outlet pipe passes through the top of the shell and extends to the inside of the shell, one end of the water outlet pipe located inside the shell is connected to a nozzle, the surface of the nozzle is connected to a nozzle, the water inlet of the water pump is connected to a circulating water inlet pipe, and one end of the circulating water inlet pipe is connected to one side of the shell.

[0010] Through the set pressure relief touch component and spray purification component, during use, when the internal pressure of the tank increases, the tank can automatically perform pressure relief operation. While releasing the pressure, the air pump and water pump can be controlled to work synchronously under the action of pressure. The gas after pressure relief is sent into the interior of the shell through the air pump, and the purified dilution liquid is used by the water pump to adsorb and filter the gas in the shell, thereby reducing the emission of irritating and harmful gases, reducing the harm to the physical and mental health of workers during use, and also reducing pollution to the atmospheric environment.

[0011] Preferably, a support and limit assembly is provided at the bottom of the base, and the support and limit assembly includes support rods fixedly installed at the four corners of the bottom of the base, and a mounting plate is fixedly installed on the bottom of the support rod, and a mounting hole is provided on the mounting plate, which is an oblong hole. Anti-slip grooves are provided on the lower surface of the mounting plate, and two adjacent support rods are fixedly connected by a pull rod.

[0012] By setting up the support limit assembly, the support positioning of the device is facilitated during use, thereby facilitating its support, while also improving the installation stability of the device, facilitating subsequent use, and also facilitating the operation of the staff, thereby improving the efficiency of the device.

[0013] Preferably, the connecting component further comprises a cleaning pipe connected to the bottom of the tank body, the surface of the cleaning pipe is connected to a solenoid valve, and the top of the solenoid valve is fixedly connected to the bottom of the tank body.

[0014] By setting up the cleaning pipe and solenoid valve, it is convenient to clean the residual liquid or contaminated liquid inside the tank during use, so that the inside of the tank can be cleaned during use, reducing the difficulty of cleaning the tank and maintaining the cleanliness of the tank.

[0015] Preferably, lifting blocks are fixedly installed on both sides of the tank body, the upper surface of the lifting block is provided with a groove, and the inner bottom wall of the groove is provided with a lifting hole.

[0016] The provided lifting block facilitates lifting operations during use, thereby facilitating subsequent lifting and installation operations and improving the ease of use of the device.

[0017] Preferably, the connecting component also includes a feed pipe connected to one side of the tank body, a discharge pipe is connected to the front surface of the tank body, one end of the discharge pipe and the feed pipe are connected to a flange, a flange hole is provided on the flange, an observation hole is provided on the front surface of the tank body, the inner wall of the observation hole is inlaid with a glass plate, and the surface of the glass plate is sealed with the inner wall of the observation hole.

[0018] The feed pipe and discharge pipe are provided, which facilitates the connection between the corresponding pipelines during use. At the same time, the flange is provided, which facilitates the installation and positioning operation during use, maintaining the sealing during connection.

[0019] Preferably, the top of the sealing plug is configured to be hexagonal, and the surface of the sealing plug is provided with anti-slip grooves.

[0020] The hexagonal sealing plug is provided so that it can be easily loosened and tightened with a wrench during use.

[0021] Preferably, the piston is T-shaped, and the bottom of the piston fits with the top of the piston ring, the surface of the piston is slidingly connected to the inner wall of the piston ring, the piston is adapted to the piston ring, the surface of the piston is slidingly connected to the inner wall of the pressure relief pipe, and the piston is adapted to the pressure relief pipe.

[0022] By providing the piston ring and the piston, the sealing between the two is conveniently increased during use, while maintaining the air tightness of the device.

[0023] Preferably, the adsorption plate and the mesh plate are both provided with tube holes for the passage of the gas pipe, and the inner wall of the tube hole is sealed and connected to the surface of the gas pipe, the bottom of the gas pipe is close to the inner bottom wall of the shell, one end of the circulating water inlet pipe is located below the mesh plate, and one end of the pipe mouth of the circulating water inlet pipe is flush with the inner bottom wall of the shell.

[0024] Through the provided mesh plate and adsorption plate, the gas after pressure relief can be filtered and adsorbed during use, and the adsorption plate is made of activated carbon adsorption material.

[0025] Preferably, one side of the back of the shell is connected to a liquid adding pipe, the surface of the liquid adding pipe is connected to a control valve, one end of the control valve is connected to one side of the back of the shell, one side of the back of the shell is located below the liquid adding pipe and is connected to a cleaning discharge pipe, and the surface of the cleaning discharge pipe is connected to a valve.

[0026] The liquid adding tube is provided to facilitate adding diluent to the interior of the device during use, facilitating subsequent purification operations and also facilitating the replacement of the liquid.

[0027] Preferably, the top of the shell is connected to an exhaust pipe, an inverted cone-shaped protective tube is fixedly installed on the top of the exhaust pipe, and the touch switch is electrically connected to the air pump and the water pump respectively.

[0028] By providing the exhaust pipe and the inverted cone-shaped protective tube, dust or impurities can be prevented from entering the interior of the shell through the exhaust pipe while the purified gas is discharged, thus facilitating subsequent normal use.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] (1) This device for producing iron oxide powder by regenerating cold-rolled acid has a pressure relief touch component and a spray purification component. During use, when the internal pressure of the tank increases, the tank can automatically perform a pressure relief operation. At the same time, the air pump and the water pump can be controlled to work synchronously under the action of pressure. The gas after pressure relief is sent into the interior of the shell through the air pump, and the purified diluent is used by the water pump to adsorb and filter the gas in the shell, thereby reducing the emission of irritating and harmful gases, reducing the harm to the physical and mental health of workers during use, and also reducing the pollution to the atmospheric environment.

[0031] (2) The device for producing iron oxide powder by cold-rolled acid regeneration is convenient for sealing and feeding operations during use by providing a sealing tank assembly and a connecting assembly. It is also convenient for hoisting and moving the entire device, thereby maintaining the stability of the device, facilitating subsequent operations, and improving the ease of use of the device.

[0032] (3) The device for producing iron oxide powder by cold-rolled acid regeneration is convenient for supporting and positioning the device during use by setting a support limit component, thereby facilitating the support thereof and improving the installation stability of the device, facilitating subsequent use, and also facilitating the operation of the staff, thereby improving the efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of a three-dimensional cross-sectional structure of the present invention from a first viewing angle;

[0034] Figure 2 This is a schematic diagram of a three-dimensional cross-sectional structure of the present invention from a second viewing angle;

[0035] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention from a first viewing angle;

[0036] Figure 4 is a schematic diagram of the third perspective structure of the present invention;

[0037] Figure 5 For the present invention Figure 1 A schematic diagram of the structure at center A;

[0038] Figure 6 For the present invention Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0039] Figure 7 For the present invention Figure 3 A magnified schematic diagram of the structure at point C in the middle;

[0040] Figure 8 For the present invention Figure 4 Enlarged schematic diagram of the structure at point D in the middle.

[0041] In the figure: 1, base; 2, sealing tank assembly; 200, tank body; 201, feeding pipe; 202, sealing plug; 203, lifting block; 3, connecting assembly; 300, cleaning pipe; 301, solenoid valve; 302, feeding pipe; 303, discharging pipe; 4, pressure relief touch assembly; 400, sealing pipe; 401, pressure relief pipe; 402, return spring; 403, piston; 404, piston ring; 405, limit rod; 406, baffle; 407, touch switch; 408, outlet pipe; 4 09. Air pump; 410. Air pipe; 5. Spray purification assembly; 500. Shell; 501. Screen; 502. Adsorption plate; 503. Water pump; 504. Water outlet pipe; 505. Nozzle; 506. Nozzle; 507. Circulating water inlet pipe; 508. Liquid adding pipe; 509. Control valve; 510. Cleaning discharge pipe; 511. Valve; 512. Exhaust pipe; 513. Inverted cone protection pipe; 6. Support and limit assembly; 600. Support rod; 601. Mounting plate; 602. Pull rod. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] See also Figures 1-8 The present invention provides a technical solution: a device for producing iron oxide powder by cold rolling acid regeneration, comprising a base 1, a sealed tank assembly 2 is provided on the upper surface of the base 1, a connecting assembly 3 is provided on the surface of the sealed tank assembly 2, a pressure relief touch assembly 4 is provided on the top of the sealed tank assembly 2, and a spray purification assembly 5 is provided on one side of the pressure relief touch assembly 4.

[0044] The sealed tank assembly 2 includes a tank body 200 fixedly mounted on the base 1 . The top of the tank body 200 is connected to a feeding pipe 201 , and the top of the feeding pipe 201 is threadedly connected to a sealing plug 202 .

[0045] By setting up the sealing tank component 2 and the connecting component 3, it is convenient to perform sealing and feeding operations during use, and it is also convenient to lift and move the entire device, maintaining the stability of the device, facilitating subsequent operations, and improving the convenience of use of the device.

[0046] The pressure relief touch assembly 4 includes a sealing tube 400 connected to the top of the tank body 200, the interior of the sealing tube 400 is connected to the pressure relief tube 401, the inner bottom wall of the pressure relief tube 401 is fixedly installed with a return spring 402, the top of the return spring 402 is fixedly installed with a piston 403, the interior of the pressure relief tube 401 is fixedly installed with a piston ring 404, the top of the pressure relief tube 401 is fixedly installed with a limit rod 405, the top of the limit rod 405 is fixedly installed with a baffle 406, the bottom of the baffle 406 is fixedly installed with a touch switch 407, the top of the sealing tube 400 is connected to an air outlet pipe 408, one end of the air outlet pipe 408 is connected to an air pump 409, the air inlet of the air pump 409 is connected to one end of the air outlet pipe 408, and the other end of the air pump 409 is connected to an air supply pipe 410.

[0047] The spray purification assembly 5 includes a shell 500 fixedly mounted on the top of the tank body 200, a mesh plate 501 fixedly mounted inside the shell 500, an adsorption plate 502 fixedly mounted on the top of the mesh plate 501, one end of the air supply pipe 410 passes through the top of the shell 500, the adsorption plate 502 and the mesh plate 501 in sequence and extends to the bottom of the mesh plate 501, a water pump 503 is fixedly mounted on one side of the top of the shell 500, the water outlet of the water pump 503 is connected to the water outlet pipe 504, one end of the water outlet pipe 504 passes through the top of the shell 500 and extends to the interior of the shell 500, one end of the water outlet pipe 504 located inside the shell 500 is connected to a nozzle 505, the surface of the nozzle 505 is connected to a nozzle 506, the water inlet of the water pump 503 is connected to a circulating water inlet pipe 507, and one end of the circulating water inlet pipe 507 is connected to one side of the shell 500.

[0048] By setting up the pressure relief touch component 4 and the spray purification component 5, during use, when the internal pressure of the tank body 200 increases, the tank body 200 can automatically perform the pressure relief operation. While relieving the pressure, the air pump 409 and the water pump 503 can be controlled to work synchronously under the action of pressure. The gas after pressure relief is sent into the interior of the shell 500 through the air pump 409, and the purified diluent is used by the water pump 503 to adsorb and filter the gas in the shell 500, thereby reducing the emission of irritating gases and harmful gases, reducing the harm to the physical and mental health of workers during use, and also reducing the pollution to the atmospheric environment.

[0049] See also Figure 4A support and limit assembly 6 is provided at the bottom of the base 1. The support and limit assembly 6 includes support rods 600 fixedly installed at the four corners of the bottom of the base 1. A mounting plate 601 is fixedly installed at the bottom of the support rod 600. A mounting hole is provided on the mounting plate 601. The mounting hole is an oblong hole. The lower surface of the mounting plate 601 is provided with anti-slip grooves. The two adjacent support rods 600 are fixedly connected by a pull rod 602. The support and limit assembly 6 is provided, which facilitates the support and positioning of the device during use, thereby facilitating its support, and also improves the installation stability of the device, facilitates subsequent use, and also facilitates the operation of the staff, thereby improving the use efficiency of the device.

[0050] See also Figure 4 The connecting component 3 also includes a cleaning pipe 300 connected to the bottom of the tank body 200. The surface of the cleaning pipe 300 is connected to the solenoid valve 301. The top of the solenoid valve 301 is fixedly connected to the bottom of the tank body 200. The cleaning pipe 300 and the solenoid valve 301 are arranged to facilitate the cleaning of residual liquid or contaminated liquid inside the tank body 200 during use, so that the inside of the tank body 200 can be cleaned during use, reducing the difficulty of cleaning the tank body 200 and maintaining the cleanliness of the tank body 200.

[0051] See also Figure 4 A lifting block 203 is fixedly installed on both sides of the tank body 200. A groove is provided on the upper surface of the lifting block 203, and a lifting hole is provided on the inner bottom wall of the groove. The lifting block 203 is provided, which is convenient for lifting operations during use, thereby facilitating subsequent lifting and installation operations and improving the convenience of use of the device.

[0052] See also Figure 4 The connecting component 3 also includes a feed pipe 302 connected to one side of the tank body 200, and a discharge pipe 303 is connected to the front surface of the tank body 200. One end of the discharge pipe 303 and the feed pipe 302 are both connected with a flange, and a flange hole is provided on the flange. An observation hole is provided on the front surface of the tank body 200, and the inner wall of the observation hole is inlaid with a glass plate. The surface of the glass plate is sealed with the inner wall of the observation hole. The feed pipe 302 and the discharge pipe 303 are convenient for connecting the corresponding pipelines during use. At the same time, the flange is convenient for installation and positioning operations during use, thereby maintaining the sealing during connection.

[0053] See also Figure 7 The top of the sealing plug 202 is set to be hexagonal, and the surface of the sealing plug 202 is provided with anti-slip grooves. The hexagonal sealing plug 202 is convenient to loosen and tighten it with a wrench during use.

[0054] See also Figure 5The piston 403 is T-shaped, and the bottom of the piston 403 fits with the top of the piston ring 404, the surface of the piston 403 is slidingly connected to the inner wall of the piston ring 404, the piston 403 is adapted to the piston ring 404, the surface of the piston 403 is slidingly connected to the inner wall of the pressure relief pipe 401, and the piston 403 is adapted to the pressure relief pipe 401. The provided piston ring 404 and piston 403 conveniently increase the sealing between the two during use, while maintaining the airtightness of the device.

[0055] See also Figure 6 The adsorption plate 502 and the mesh plate 501 are both provided with a tube hole for the air pipe 410 to pass through, and the inner wall of the tube hole is sealed and connected to the surface of the air pipe 410. The bottom of the air pipe 410 is close to the inner bottom wall of the shell 500. One end of the circulating water inlet pipe 507 is located below the mesh plate 501, and one end of the pipe mouth of the circulating water inlet pipe 507 is flush with the inner bottom wall of the shell 500. The mesh plate 501 and the adsorption plate 502 are set, which can filter and adsorb the depressurized gas during use. The adsorption plate 502 is made of activated carbon adsorption material.

[0056] See also Figure 6-Figure 7 The back side of the shell 500 is connected to a liquid adding pipe 508, and the surface of the liquid adding pipe 508 is connected to a control valve 509. One end of the control valve 509 is connected to one side of the back side of the shell 500. One side of the back side of the shell 500 is located below the liquid adding pipe 508 and is connected to a cleaning discharge pipe 510. The surface of the cleaning discharge pipe 510 is connected to a valve 511. The setting of the liquid adding pipe 508 makes it convenient to add diluent to the inside of the device during use, facilitates subsequent purification operations, and also facilitates the replacement of liquid.

[0057] See also Figures 1-8 The top of the shell 500 is connected to an exhaust pipe 512, and an inverted cone-shaped protective tube 513 is fixedly installed on the top of the exhaust pipe 512. The touch switch 407 is electrically connected to the air pump 409 and the water pump 503 respectively. The exhaust pipe 512 and the inverted cone-shaped protective tube 513 are set. While discharging the purified gas, they can also prevent dust or impurities from entering the interior of the shell 500 through the exhaust pipe 512, which is convenient for subsequent normal use.

[0058] Working principle: When in use, place the reaction tank in a position to avoid direct sunlight, and then install it on the compacted land or hardened ground through the mounting plate 601 to prevent the storage tank from tilting or sinking and causing safety accidents, then connect the feed pipe 302 and the discharge pipe 303 to the corresponding equipment interface, and then loosen the sealing plug 202 to open the feeding pipe 201, and add ammonia water or ammonium carbonate to the inside of the tank body 200 through the feeding pipe 201, and then tighten the sealing plug 202. When the inside of the tank body 200 reacts or is affected by the temperature, the pressure inside the tank body 200 increases, and then the pressure pushes up the piston 403 on the return spring 402, so that The top of the piston 403 is separated from the piston ring 404, and the top of the piston 403 moves to the outside of the pressure relief pipe 401, and then the pressure relief operation is performed. During the pressure relief process, the piston 403 squeezes the touch switch 407, thereby making the air pump 409 and the water pump 503 work. The air pump 409 draws the gas in the sealing tube 400 into the interior of the shell 500, and then the water in the shell 500 preliminarily filters the gas. At the same time, during the operation of the water pump 503, the water in the shell 500 is drawn into the interior of the water outlet pipe 504, and sprayed through the nozzle 505 and the nozzle 506, thereby facilitating the automatic filtering and spray purification effects during the automatic pressure relief process.

[0059] When the internal liquid of the shell 500 needs to be replaced, the control valve 511 is opened to release the liquid in the shell 500 by cleaning the discharge pipe 510. Then, the valve 511 is closed and the control valve 509 is opened again to add purified diluent to the interior of the shell 500 through the liquid adding pipe 508.

[0060] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0061] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A device for producing iron oxide powder by cold rolling acid regeneration, comprising a base (1), characterized in that: A sealed tank assembly (2) is provided on the upper surface of the base (1), a connecting assembly (3) is provided on the surface of the sealed tank assembly (2), a pressure relief touch assembly (4) is provided on the top of the sealed tank assembly (2), and a spray purification assembly (5) is provided on one side of the pressure relief touch assembly (4); The sealed tank assembly (2) comprises a tank body (200) fixedly mounted on a base (1); the top of the tank body (200) is connected to a feeding pipe (201); the top of the feeding pipe (201) is threadedly connected to a sealing plug (202); The pressure relief touch component (4) includes a sealing tube (400) connected to the top of the tank body (200), the interior of the sealing tube (400) is connected to a pressure relief tube (401), a reset spring (402) is fixedly installed on the inner bottom wall of the pressure relief tube (401), a piston (403) is fixedly installed on the top of the reset spring (402), a piston ring (404) is fixedly installed on the interior of the pressure relief tube (401), and a piston ring (404) is fixedly installed on the top of the pressure relief tube (401). A limiting rod (405), a baffle (406) is fixedly installed on the top of the limiting rod (405), a touch switch (407) is fixedly installed on the bottom of the baffle (406), the top of the sealing tube (400) is connected to an air outlet pipe (408), one end of the air outlet pipe (408) is connected to an air pump (409), an air inlet of the air pump (409) is connected to one end of the air outlet pipe (408), and the other end of the air pump (409) is connected to an air delivery pipe (410); The spray purification assembly (5) includes a shell (500) fixedly mounted on the top of the tank body (200), a mesh plate (501) fixedly mounted inside the shell (500), an adsorption plate (502) fixedly mounted on the top of the mesh plate (501), one end of the air delivery pipe (410) passes through the top of the shell (500), the adsorption plate (502) and the mesh plate (501) in sequence and extends to the bottom of the mesh plate (501), a water pump (503) fixedly mounted on one side of the top of the shell (500), the water pump (503) fixedly mounted on the top of the shell (500), and the water pump (503) fixedly mounted on the top of the shell (500). The water outlet of the pump (503) is connected to a water outlet pipe (504), one end of which passes through the top of the shell (500) and extends to the interior of the shell (500), one end of which is located inside the shell (500) is connected to a nozzle (505), and the surface of the nozzle (505) is connected to a nozzle (506), and the water inlet of the water pump (503) is connected to a circulating water inlet pipe (507), one end of which is connected to one side of the shell (500).

2. The device for producing iron oxide powder by cold rolling acid regeneration according to claim 1, characterized in that: A support and limit assembly (6) is provided at the bottom of the base (1), and the support and limit assembly (6) includes support rods (600) fixedly mounted at the four corners of the bottom of the base (1); a mounting plate (601) is fixedly mounted at the bottom of the support rods (600); a mounting hole is provided on the mounting plate (601), and the mounting hole is an oblong hole; an anti-slip groove is provided on the lower surface of the mounting plate (601); and two adjacent support rods (600) are fixedly connected via a pull rod (602).

3. The device for producing iron oxide powder by cold rolling acid regeneration according to claim 1, characterized in that: The connecting assembly (3) further comprises a cleaning pipe (300) connected to the bottom of the tank body (200), the surface of the cleaning pipe (300) is connected to a solenoid valve (301), and the top of the solenoid valve (301) is fixedly connected to the bottom of the tank body (200).

4. The device for producing iron oxide powder by cold rolling acid regeneration according to claim 1, characterized in that: Both sides of the tank body (200) are fixedly mounted with hanging blocks (203), the upper surface of the hanging block (203) is provided with a groove, and the inner bottom wall of the groove is provided with a hanging hole.

5. The device for producing iron oxide powder by cold rolling acid regeneration according to claim 1, characterized in that: The connecting component (3) further comprises a feed pipe (302) connected to one side of the tank body (200); a discharge pipe (303) is connected to one side of the front surface of the tank body (200); one end of the discharge pipe (303) and the feed pipe (302) are both connected to a flange, a flange hole is provided on the flange, an observation hole is provided on the front surface of the tank body (200), the inner wall of the observation hole is inlaid with a glass plate, and the surface of the glass plate is sealed to the inner wall of the observation hole.

6. The device for producing iron oxide powder by cold rolling acid regeneration according to claim 1, characterized in that: The top of the sealing plug (202) is configured to be hexagonal, and the surface of the sealing plug (202) is provided with anti-slip grooves.

7. The device for producing iron oxide powder by cold rolling acid regeneration according to claim 1, characterized in that: The piston (403) is T-shaped, and the bottom of the piston (403) fits with the top of the piston ring (404), the surface of the piston (403) is slidably connected to the inner wall of the piston ring (404), the piston (403) is adapted to the piston ring (404), the surface of the piston (403) is slidably connected to the inner wall of the pressure relief pipe (401), and the piston (403) is adapted to the pressure relief pipe (401).

8. The device for producing iron oxide powder by cold rolling acid regeneration according to claim 1, characterized in that: The adsorption plate (502) and the mesh plate (501) are both provided with a tube hole for the air supply pipe (410) to pass through, and the inner wall of the tube hole is sealedly connected to the surface of the air supply pipe (410). The bottom of the air supply pipe (410) is close to the inner bottom wall of the shell (500). One end of the circulating water inlet pipe (507) is located below the mesh plate (501), and one end of the pipe opening of the circulating water inlet pipe (507) is flush with the inner bottom wall of the shell (500).

9. The device for producing iron oxide powder by cold rolling acid regeneration according to claim 1, characterized in that: The back side of the shell (500) is connected to a liquid adding pipe (508), the surface of the liquid adding pipe (508) is connected to a control valve (509), one end of the control valve (509) is connected to the back side of the shell (500), and the back side of the shell (500) is located below the liquid adding pipe (508) and is connected to a cleaning and discharging pipe (510), and the surface of the cleaning and discharging pipe (510) is connected to a valve (511).

10. The device for producing iron oxide powder by cold rolling acid regeneration according to claim 1, characterized in that: The top of the housing (500) is connected to an exhaust pipe (512), and an inverted cone-shaped protective pipe (513) is fixedly installed on the top of the exhaust pipe (512). The touch switch (407) is electrically connected to the air pump (409) and the water pump (503) respectively.

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