A pickling box

Abstract

The present application relates to a pickling box, and to the field of pickling equipment, comprising a box body and a sliding top cover. The box body is provided with a pickling tank, and the top cover slides to cover the pickling tank. The box body is provided with a first liquid receiving tank, and the top cover is provided with a guide surface, which is inclined downward toward the direction of the first liquid receiving tank. The first liquid receiving tank is used to collect evaporated pickling liquid. After the top cover covers the pickling tank, the evaporated pickling liquid moves upward and contacts the guide surface, where it condenses into droplets. The droplets then move along the inclined direction of the guide surface, converge above the first liquid receiving tank, and fall into the first liquid receiving tank, thereby facilitating the collection of the evaporated pickling liquid and improving the utilization rate of the pickling liquid.

Description

Technical Field

[0001] The present application relates to the field of pickling equipment, and in particular to a pickling box. Background Art

[0002] Pickling is the use of acid solution to remove oxide scale and rust on the surface of steel. Pickling box is a more commonly used pickling equipment. When large steel pipes need to be pickled, the steel pipes to be pickled are placed in the pickling box, and then pickling liquid is added to the pickling box to soak the steel pipes.

[0003] In the related art, some pickling tanks are capable of heating the pickling liquid. After the pickling liquid is heated, part of the pickling liquid evaporates into the air, and the utilization rate of the pickling liquid decreases, which needs to be improved. Summary of the Invention

[0004] In order to improve the utilization rate of the pickling solution, the present application provides a pickling box.

[0005] The present application provides a pickling box adopting the following technical solution:

[0006] A pickling box comprises a box body and a top cover slidably connected to the box body, wherein the box body is provided with a pickling tank, and the top cover slidably covers the pickling tank, the box body is provided with a liquid receiving trough 1, and the top cover is provided with a guide surface, the guide surface is inclined downward in a direction close to the liquid receiving trough 1, and the liquid receiving trough 1 is used to collect evaporated pickling liquid.

[0007] By adopting the above technical solution, in actual use, after the steel pipe and pickling liquid are placed in the pickling tank, the top cover is closed and the pickling liquid is heated. The evaporated pickling liquid moves upward and contacts the guide surface, where it condenses into droplets. The droplets then move along the inclined direction of the guide surface, converge above the first receiving tank, and fall into the first receiving tank. This facilitates the collection of the evaporated pickling liquid, which is beneficial for improving the utilization rate of the pickling liquid.

[0008] Preferably, a baffle is provided on the top cover, and the baffle is located on opposite sides of the guide surface. The length direction of the baffle is perpendicular to the extension direction of the liquid receiving trough 1. A liquid receiving trough 2 is provided on the box body, and the projection of the baffle in the vertical direction is located in the liquid receiving trough 2. The liquid receiving trough 1 and the liquid receiving trough 2 are arranged around the outer periphery of the pickling tank.

[0009] By adopting the above technical solution, the baffle is provided to further limit the flow range of the pickling liquid condensed on the top cover, and part of the pickling liquid flowing onto the baffle flows into the second liquid receiving tank along the baffle for collection, so that the pickling liquid condensed on the top cover will not flow out of the guide surface and drip to other places except the first liquid receiving tank, the second liquid receiving tank and the pickling tank, which is conducive to collecting the volatilized pickling liquid.

[0010] Preferably, the top cover is rotatably connected to a guide wheel, and the top cover is supported on the box body through the guide wheel.

[0011] By adopting the above technical solution, the top cover is supported by the guide wheels, making it easier to move the top cover to cover or open the pickling tank.

[0012] Preferably, the guide wheels are located on opposite sides of the guide surface.

[0013] By adopting the above technical solution, the guide wheels are arranged on both sides of the guide surface, which is beneficial to reducing the contact between the guide wheels and the pickling liquid, making the guide wheels less susceptible to erosion, and is beneficial to increasing the service life of the guide wheels.

[0014] Preferably, a guide rail is provided on the box body, and the guide rail supports the guide wheel.

[0015] By adopting the above technical solution, by setting a guide rail to support the guide wheel and guide the guide wheel, the cover plate is not likely to deviate from the moving trajectory during movement, so that the pickling liquid condensed on the guide surface can accurately enter the liquid receiving tank 1, the liquid receiving tank 2 and the pickling tank.

[0016] Preferably, a liquid distribution tank is provided on the box body, a liquid injection pipe is provided on the box body, a water pump is connected to the liquid injection pipe, the water pump is used to drive the water in the liquid distribution tank into the pickling tank along the liquid injection pipe, and a liquid inlet is provided on the box body, the liquid inlet connects the liquid distribution tank and the pickling tank.

[0017] By adopting the above technical solution, the liquid distribution tank is filled with diluted pickling liquid. After the steel pipe is placed in the pickling tank, part of the pickling liquid in the liquid distribution tank enters the pickling tank from the liquid inlet, and part of the pickling liquid enters the pickling tank through the liquid injection pipe, which is beneficial to improving the liquid inlet efficiency of the pickling liquid in the pickling tank.

[0018] Preferably, the pickling pool includes a pickling tank and a spare tank, a circulation port is opened on the box body, the circulation port connects the pickling tank and the spare tank, and a driving member is provided on the box body, the driving member drives the pickling liquid in the pickling tank and the spare tank to circulate.

[0019] By adopting the above technical solution, in actual use, the steel pipe is placed in the pickling tank, and pickling liquid is injected into the pickling tank and the spare tank. The driving member drives the pickling liquid to circulate in the spare tank and the pickling tank, which is beneficial to improving the pickling efficiency.

[0020] Preferably, the box body includes an outer box and an inner box, the pickling tank is opened on the inner box, the driving member is provided on the outer box, the driving member drives the inner box to rise and fall, the spare tank includes a circulation space and a driving space, the circulation space and the driving space are both opened on the outer box, a one-way valve 1 is provided on the outer box, the one-way valve 1 allows the pickling liquid to flow from the driving space into the circulation space, the inner box slides into or extends out of the driving space, a plurality of connecting ports are opened on the inner wall of the lower end of the pickling tank, and the plurality of connecting ports connect the pickling tank and the driving space, a plurality of one-way valves 2 are provided on the inner box, the one-way valve 2 is arranged corresponding to the connecting port, the one-way valve 2 allows the pickling liquid to flow from the pickling tank into the driving space, the one-way valve 2 covers the corresponding connecting port, the circulation port is opened on the inner box, and the circulation port connects the pickling tank and the circulation space.

[0021] By adopting the above technical solution, during the pickling process, the driving member drives the inner box to rise, and the pickling liquid in the pickling tank flows into the driving space through the second one-way valve. During the process of the pickling liquid flowing into the driving space, the pickling liquid drives the sediment in the pickling tank to flow toward the connecting port, causing the sediment in the pickling liquid to accumulate near the connecting port, making it easier to clean. The driving member drives the inner box to descend, and the inner box squeezes the pickling liquid in the driving space, causing the pickling liquid in the driving space to flow through the first one-way valve into the circulation space. The water pressure in the circulation space increases, causing the pickling liquid in the circulation space to flow from the circulation port into the pickling tank. The driving member drives the box to rise and fall back, keeping the pickling liquid in the pickling tank flowing while causing the sediment to accumulate near the connecting port, improving the pickling efficiency and facilitating the cleaning of the sediment in the pickling tank. In addition, when the pickling is about to end, the top cover is opened, and the driving member drives the inner box to rise to expose the steel pipe, making it easier to observe the pickling status of the steel pipe.

[0022] Preferably, a guide plate is provided on the one-way valve 2, and a plurality of guide grooves are opened on the guide plate, and the plurality of guide channels spirally approach the one-way valve 2 in a clockwise direction.

[0023] By adopting the above technical solution, when the inner box rises, the pickling liquid in the pickling tank enters the one-way valve 2 through the diversion channel. When passing through the diversion channel, the pickling liquid rotates in a clockwise direction. The rotation of the pickling liquid forms a vortex at the corresponding connection port, which is conducive to driving the sediment to further accumulate near the connection port.

[0024] Preferably, a filter is provided on the guide plate, and the filter covers the guide groove.

[0025] By adopting the above technical solution and setting a filter, the pickling liquid flows from the pickling tank into the driving space, and the filter filters the pickling liquid flowing into the driving space, which is beneficial to reducing the sediment in the spare tank and facilitating cleaning.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. After the top cover is closed on the pickling tank, the evaporated pickling liquid moves upward and contacts the guide surface, where it condenses into droplets. It then moves along the inclined direction of the guide surface and converges above the liquid receiving tank 1 and falls into the liquid receiving tank 1. This facilitates the collection of the evaporated pickling liquid and helps improve the utilization rate of the pickling liquid.

[0028] 2. By setting the baffle, the flow range of the pickling liquid condensed on the top cover is further limited, which is conducive to collecting the volatilized pickling liquid;

[0029] 3. Part of the pickling liquid in the liquid distribution pool enters the pickling pool from the liquid inlet, and part of the pickling liquid enters the pickling pool through the liquid injection pipe, which is beneficial to improving the liquid inlet efficiency of the pickling liquid in the pickling pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of this embodiment.

[0031] Figure 2 This is a cross-sectional view of this embodiment, mainly showing the internal structure of the box.

[0032] Figure 3 This is a cross-sectional view of this embodiment in another direction, mainly showing the inclination direction of the guide surface.

[0033] Figure 4 This is a schematic diagram of the local structure of this embodiment, mainly showing the position of the liquid pipe.

[0034] Figure 5 This is a partial cross-sectional view of the inner box of this embodiment, mainly showing the position of the second one-way valve.

[0035] Explanation of the accompanying symbols: 1. Box body; 11. Outer box; 111. Liquid distribution tank; 112. Liquid receiving tank 1; 113. Liquid receiving tank 2; 114. Guide rail; 115. Guide rail; 116. Liquid filling port; 117. Electric valve; 118. One-way valve 1; 119. Circulation port; 12. Inner box; 121. Slot; 122. Connecting port; 123. One-way valve 2; 124. Driving part; 125. Guide plate; 126. Sink; 127. Guide trough; 128. Filter; 2. Top cover; 21. Guide surface; 22. Baffle; 23. Guide wheel; 3. Pickling tank; 31. Pickling tank; 32. Spare tank; 321. Circulation space; 322. Driving space; 4. Liquid filling pipe; 41. Water pump; 42. Liquid outlet pipe. DETAILED DESCRIPTION

[0036] The present application is further described in detail below with reference to the accompanying drawings.

[0037] The embodiment of the present application discloses a pickling box. Figure 1 and Figure 2 A pickling box includes a box body 1 and a top cover 2. The top cover 2 is located above the box body 1 and is connected to the box body 1 by sliding in the horizontal direction. A liquid distribution tank 111 and a pickling tank 3 are provided on the box body 1. The liquid distribution tank 111 and the pickling tank 3 are distributed at intervals. The distribution direction of the liquid distribution tank 111 and the pickling tank 3 is parallel to the sliding direction of the top cover 2. The pickling tank 3 is used for placing steel pipes. The top cover 2 slides to cover or open the pickling tank 3.

[0038] Reference Figure 2 and Figure 3 The upper end surface of the box body 1 is provided with a liquid receiving trough 112 and a liquid receiving trough 2 113. There are two liquid receiving troughs 112. The extension direction of the liquid receiving trough 112 is parallel to the sliding direction of the top cover 2. The liquid receiving trough 112 is horizontally distributed. The distribution direction of the liquid receiving trough 112 is perpendicular to the sliding direction of the top cover 2. The liquid receiving trough 112 is located on opposite sides of the pickling tank 3; there are two liquid receiving troughs 2 113. The extension direction of the liquid receiving trough 2 113 is parallel to the distribution direction of the liquid receiving trough 1 112. The distribution direction of the liquid receiving trough 2 113 is parallel to the sliding direction of the top cover 2. The liquid receiving troughs are located on opposite sides of the pickling tank 3. The liquid receiving trough 112 and the liquid receiving trough 2 113 are arranged around the outer periphery of the pickling tank 3. The liquid receiving trough 112 and the liquid receiving trough 2 113 are connected. The liquid receiving trough 112 and the liquid receiving trough 2 113 are used to collect the pickling liquid condensed on the top cover 2.

[0039] Reference Figure 2 and Figure 3 A guide surface 21 is machined and formed on the lower end surface of the top cover 2. The guide surface 21 slopes downward toward the first liquid receiving tank 112. The vertical cross-section of the guide surface 21 is an inverted triangle. The ends of the guide surface 21 near the first liquid receiving tank 112 are located directly above the first liquid receiving tank 112. Several baffles 22 are fixed to the lower end surface of the top cover 2. The position and number of the baffles 22 correspond one-to-one with the position and number of the second liquid receiving tank 113. The baffles 22 are located on opposite sides of the guide surface 21, and their vertical projections are located within the corresponding second liquid receiving tank 113.

[0040] Reference Figure 1 and Figure 3A guide rail 114 is provided on the box body 1. The position and number of the guide cabinets correspond one-to-one to the position and number of the liquid receiving tank 112. The guide rail 114 is spaced apart from the liquid receiving tank 112. A guide rail 115 is provided on the box body 1. The guide rail 115 is located on the side of the pickling tank 3 close to the liquid distribution tank 111. The position and number of the guide rail 115 correspond one-to-one to the position and number of the guide rail 114. The guide rail 115 is located on the extension path of the corresponding guide rail 114. Several guide wheels 23 are rotatably connected to the top cover 2. These guide wheels 23 are evenly distributed on opposite sides of the top cover 2 along a direction parallel to the liquid receiving tank 112. The rotation axes of the guide wheels 23 are horizontal and perpendicular to the sliding direction of the top cover 2. The guide wheels 23 are slidably connected to the housing 1 along the extension direction of the guide rails 114 and 115. The guide wheels 23 on the same side of the top cover 2 are evenly spaced along the sliding direction of the top cover 2. The guide wheels 23 partially engage within the guide rails 114 and 115. The inner walls of the guide rails 114 and 115 support the guide wheels 23, thereby supporting the top cover 2. The length of the guide rail 114 in the direction parallel to the sliding direction of the top cover 2 is 2 / 3 times the length of the liquid receiving tank 112.

[0041] Reference Figure 3 and Figure 4 A liquid injection pipe 4 is fixed to the housing 1. The position and number of the liquid injection pipes 4 correspond one-to-one with the position and number of the liquid receiving tank 112. The liquid injection pipe 4 is fixed in the corresponding liquid receiving tank 112. The end of the liquid injection pipe 4 near the liquid distribution tank 111 extends into the liquid distribution tank 111 and is connected to the liquid distribution tank 111. A water pump 41 is fixed to the liquid injection pipe 4. The water outlet and water inlet of the water pump 41 are both connected to the liquid injection pipe 4. A plurality of liquid outlet pipes 42 are fixed to the liquid injection pipe 4. The liquid outlet pipes 42 are all located in the liquid receiving tank 112. The liquid outlet pipes 42 are evenly spaced along the extension direction of the liquid receiving tank 112. The liquid outlet pipes 42 are located on the side of the liquid injection pipe 4 near the pickling tank 3. The liquid outlet pipes 42 pass through the inner wall of the liquid receiving tank 112 and are connected to the interior of the pickling tank 3. The end of the liquid receiving tank 112 near the liquid distribution tank 111 is connected to the liquid distribution tank 111.

[0042] Reference Figure 2 A liquid injection port 116 is provided on the box body 1, and the liquid injection port 116 is connected to the pickling tank 3 and the liquid distribution tank 111. An electric valve 117 is fixed on the box body 1, and the electric valve 117 is used to cover the liquid injection port 116 to seal the liquid injection port 116.

[0043] In actual use, the steel pipe is placed in the pickling tank 3, and the electric valve 117 is opened to connect the pickling tank 3 with the liquid distribution tank 111. The diluted solution in the liquid distribution tank 111 enters the pickling tank 3 from the liquid injection port 116. At the same time, the water pump 41 extracts the pickling liquid from the liquid distribution tank 111 through the liquid injection pipe 4 and injects it into the pickling tank 3 from the liquid outlet pipes 42 on both sides of the pickling tank 3. When the liquid level in the pickling tank 3 reaches the liquid injection port 116, the electric valve 117 is closed, and the water pump 41 continues to inject the pickling liquid into the pickling tank 3 through the liquid injection pipe 4. When the pickling liquid in the pickling tank 3 submerges the steel pipe, the water pump 41 stops. The guide wheel 23 rotates and drives the top cover 2 to gradually move from above the liquid distribution tank 111 to above the pickling tank 3. When the guide wheel 23 abuts the inner wall of the end of the guide rail 114, the guide wheel 23 stops rotating, and the top cover 2 just covers the pickling tank 3.

[0044] The pickling liquid is then heated, and the evaporated pickling liquid condenses into droplets after contacting the guide surface 21. The droplets of pickling liquid gradually converge above the liquid receiving tank 1 12 along the inclined direction of the guide surface 21 and fall into the liquid receiving tank 1 112 and the liquid receiving tank 2 113, making it convenient to re-inject the pickling liquid in the liquid receiving tank 1 112 and the liquid receiving tank 2 113 into the liquid distribution tank 111, and the volatilized pickling liquid is collected and reused, which is beneficial to improving the utilization rate of the pickling liquid.

[0045] Reference Figure 2 The box body 1 includes an inner box 12 and an outer box 11. The pickling tank 3 includes a pickling tank 31 and a spare tank 32. The spare tank 32 includes a driving space 322 and a circulation space 321. The guide rails 114 and 115 are both provided on the outer box 11. The top cover 2 is slidably connected to the outer box 11. The liquid receiving tank 1 112 and the liquid receiving tank 2 113 are both provided on the outer box 11. The inner box 12 is lifted and slid on the outer box 11. The pickling tank 31 is provided on the inner box 12. The liquid distribution tank 111, the driving space 322 and the circulation space 321 are all provided on the outer box 11. The liquid distribution tank 111 and the driving space 32 2 and the circulation space 321 are distributed in a direction parallel to the sliding direction of the top cover 2. The liquid distribution tank 111, the driving space 322 and the circulation space 321 are arranged at intervals. The liquid distribution tank 111 and the circulation space 321 are respectively located on opposite sides of the driving space 322. The inner box 12 is inserted into the driving space 322. The inner box 12 slides into or out of the driving space 322. A one-way valve 118 is fixed on the outer box 11. The one-way valve 118 connects the circulation space 321 and the driving space 322. The pickling liquid in the driving space 322 enters the circulation space 321 through the one-way valve 118.

[0046] Reference Figure 4A liquid injection port 116 is provided on the outer box 11. This port is located on the side of the liquid distribution tank 111 near the inner box 12. The port 116 extends through the inner box 12, parallel to the direction in which the port 116 and the inner box 12 are distributed. When the inner box 12 is aligned with the bottom inner wall of the drive space 322, the liquid injection ports 116 on the outer and inner boxes 11 and 12 communicate, allowing the liquid distribution tank 111 to communicate with the pickling tank 31. An electric valve 117 is secured to the outer box 11, covering the liquid injection port 116. This controls the communication between the liquid distribution tank 111 and the pickling tank 31. The injection pipe 4 is fixed on the outer box 11, and a plurality of card slots 121 are provided on the upper end surface of the inner box 12. The position and number of the card slots 121 correspond one-to-one to the position and number of the liquid outlet pipes 42. The card slots 121 are for the corresponding liquid outlet pipes 42 to be inserted. The vertical projection of the end of the liquid outlet pipe 42 away from the injection pipe 4 is located in the pickling tank 31.

[0047] Reference Figure 2 A circulation port 119 is provided on the outer box 11, and the circulation port 119 is located on the side of the circulation space 321 close to the driving space 322. The circulation space 321 is connected to the driving space 322. Another circulation port 119 is provided on the inner box 12. When the inner box 12 is in contact with the inner wall of the bottom of the driving space 322, the circulation ports 119 on the inner box 12 and the outer box 11 are connected, so that the circulation space 321 is connected to the pickling tank 3.

[0048] Reference Figure 3 and Figure 5 The inner box 12 is provided with a plurality of connection ports 122, which are located at the bottom of the inner box 12. A plurality of random connections are evenly spaced along the sliding direction of the top cover 2 on the inner box 12. The connection ports 122 are used to connect the pickling tank 31 and the drive space 322. A plurality of second one-way valves 123 are fixed to the inner box 12. The position and number of the second one-way valves 123 correspond one-to-one to the position and number of the connection ports 122. The second one-way valves 123 are located in the corresponding connection ports 122. The second one-way valves 123 cover the corresponding connection ports 122, allowing the pickling liquid in the pickling tank 3 to enter the drive space 322 through the second one-way valves 123. A plurality of driving members 124 are fixed to the outer box 11. The driving members 124 are hydraulic cylinders. The piston rods of the driving members 124 are fixedly connected to the inner box 12. The driving members 124 drive the inner box 12 to rise and fall.

[0049] During actual use, the piston rod of the driving member 124 contracts so that the lower end of the inner box 12 fits against the lower inner wall of the driving space 322, the circulation port 119 connects the pickling tank 3 and the circulation space 321, and the liquid injection port 116 connects the liquid distribution tank 111 and the pickling tank 3. After the steel pipe is placed, liquid is injected into the pickling tank 3 and the circulation space 321 through the liquid injection pipe 4 and the liquid injection port 116 until the pickling liquid submerges the steel pipe. The piston rod of the driving member 124 extends, causing the inner box 12 to rise. As the inner box 12 rises, it separates from the bottom inner wall of the driving space 322, connecting the pickling tank 31 and the driving space 322. The pickling liquid in the pickling tank 3 enters the driving space 322 through the second one-way valve 123. As the pickling liquid flows out of the driving space 322 through the second one-way valve 123, the pickling liquid drives the sediment in the pickling tank 31 toward the connection port 122, causing the sediment to accumulate near the connection port 122, facilitating centralized treatment of the sediment in the pickling tank 3. The piston rod of the driving member 124 retracts again, causing the inner box 12 to move into the driving space 322, squeezing the pickling liquid in the driving space 322 and causing it to enter the circulation space 321. The hydraulic pressure in the circulation space 321 increases, causing the liquid in the circulation port 119 to re-enter the pickling tank 3 through the circulation port 119, maintaining circulation during the pickling process and improving the pickling effect.

[0050] In addition, the inner box 12 is driven to rise by the driving member 124. When the pickling time is about to end, the top cover 2 is moved to open the pickling tank 3, and the rising height of the inner box 12 is raised to expose the pickling liquid partially to the steel pipe, which is convenient for the staff to observe the pickling condition of the steel pipe.

[0051] Reference Figure 3 and Figure 5 A guide plate 125 is fixed on the one-way valve 123. The guide plate 125 is a circular plate. The guide plate 125 is located at one end of the one-way valve close to the pickling tank 31. A plurality of sink grooves 126 are provided on the inner box 12. The position and number of the sink grooves 126 correspond one-to-one to the position and number of the guide plates 125. The sink grooves 126 are arranged around the outer periphery of the connecting port 122. The connecting port 122 is connected to the sink grooves 126. The guide plate 125 is located in the corresponding sink groove 126. The guide plate 125 is fitted with the inner wall of the lower end of the sink groove 126. A plurality of guide grooves 127 are provided on the guide plate 125 for diversion. The plurality of guide grooves 127 are evenly distributed around the axis of the guide plate 125 at equal intervals. The cross-section of the guide groove 127 in the horizontal direction spirals counterclockwise close to the axis of the guide plate 125. The guide groove 127 connects the one-way valve 123 and the pickling tank 31.

[0052] When the pickling liquid enters the guide groove 127, it flows along the extension direction of the guide groove 127, making it easier for the pickling liquid in the pickling tank 31 to form a vortex when it flows out, which is convenient for further rolling the sediment in the pickling tank 31 and gathering it at the connection port 122. This is beneficial for reducing the cleaning range and improving the cleaning efficiency of the pickling tank 31.

[0053] Reference Figure 3 and Figure 5 A filter screen 128 is fixed on the guide plate 125 and is arranged around the outer periphery of the guide. The filter screen 128 is used to cover the guide channel to prevent sediment from entering the one-way valve 123. When the pickling liquid rotates into the guide groove 127, the pickling liquid drives the sediment attached to the filter screen 128 to rotate, making it difficult for the sediment to accumulate in one guide groove 127, which is beneficial to reduce the blockage of the guide groove 127.

[0054] The implementation principle of a pickling box in an embodiment of the present application is as follows: during the actual pickling process, the steel pipe is placed in the pickling tank 31, the water pump 41 and the electric valve 117 are opened, and the pickling liquid in the liquid distribution tank 111 enters the pickling tank 31 and the circulation space 321 through the liquid injection port 116 and the liquid injection pipe 4 until the pickling liquid submerges the steel pipe, the top cover 2 is started to cover the pickling tank 31, and the driving member 124 drives the inner box 12 to move up and down to drive the pickling liquid to flow between the pickling tank 31 and the circulation space 321. As the pickling time increases, the pickling liquid condensed on the guide surface 21 is collected in the liquid receiving tank 1 112 and the liquid receiving tank 2 113. The collected pickling liquid can be poured back into the pickling tank 31 or the liquid distribution tank 111 in the next round of pickling, which is conducive to making full use of the pickling liquid and improving the utilization rate of the pickling liquid.

[0055] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pickling box, characterized by: The invention comprises a box body (1) and a top cover (2) slidably connected to the box body (1), wherein the box body (1) is provided with a pickling tank (3), the top cover (2) slidably covers the pickling tank (3), the box body (1) is provided with a liquid receiving trough (112), the top cover (2) is provided with a guide surface (21), the guide surface (21) is inclined downward in a direction close to the liquid receiving trough (112), and the liquid receiving trough (112) is used to collect evaporated pickling liquid; The pickling tank (3) includes a pickling tank (31) and a standby tank (32); a circulation port (119) is provided on the housing (1); the circulation port (119) is connected to the pickling tank (31) and the standby tank (32); a driving member (124) is provided on the housing (1); the driving member (124) drives the pickling liquid in the pickling tank (31) and the standby tank (32) to circulate; The box body (1) includes an outer box (11) and an inner box (12), the pickling tank (31) is opened on the inner box (12), the driving member (124) is provided on the outer box (11), and the driving member (124) drives the inner box (12) to rise and fall, the spare tank (32) includes a circulation space (321) and a driving space (322), and the circulation space (321) and the driving space (322) are both opened on the outer box (11), and a one-way valve (118) is provided on the outer box (11), and the one-way valve (118) allows the pickling liquid to flow from the driving space (322) into the circulation space (321), and the inner box (12) slides into or out of the driving space. The pickling tank (31) is provided with a plurality of connecting ports (122), and the plurality of connecting ports (122) are connected to the pickling tank (31) and the driving space (322). The inner box (12) is provided with a plurality of one-way valves (123), and the one-way valves (123) are arranged corresponding to the connecting ports (122). The one-way valves (123) allow the pickling liquid to flow from the pickling tank (31) into the driving space (322). The one-way valves (123) cover the corresponding connecting ports (122). The circulation port (119) is opened on the inner box (12), and the circulation port (119) is connected to the pickling tank (31) and the circulation space (321).

2. A pickling box according to claim 1, characterized in that: The top cover (2) is provided with a baffle (22), the baffle (22) is located on opposite sides of the guide surface (21), the length direction of the baffle (22) is perpendicular to the extension direction of the first liquid receiving trough (112), the box body (1) is provided with a second liquid receiving trough (113), the projection of the baffle (22) in the vertical direction is located in the second liquid receiving trough (113), and the first liquid receiving trough (112) and the second liquid receiving trough (113) are arranged around the periphery of the pickling tank (3).

3. A pickling box according to claim 2, characterized in that: A guide wheel (23) is rotatably connected to the top cover (2), and the top cover (2) is supported on the box body (1) via the guide wheel (23).

4. A pickling box according to claim 3, characterized in that: The guide wheels (23) are located on two opposite sides of the guide surface (21).

5. A pickling tank according to claim 4, characterized in that: A guide rail (114) is provided on the box body (1), and the guide rail (114) supports the guide wheel (23).

6. A pickling box according to claim 1, characterized in that: A liquid distribution tank (111) is provided on the box body (1), a liquid injection pipe (4) is provided on the box body (1), a water pump (41) is connected to the liquid injection pipe (4), and the water pump (41) is used to drive the pickling liquid in the liquid distribution tank (111) along the liquid injection pipe (4) into the pickling tank (3). A liquid injection port (116) is provided on the box body (1), and the liquid injection port (116) is connected to the liquid distribution tank (111) and the pickling tank (3).

7. A pickling tank according to claim 1, characterized in that: The one-way valve (123) is provided with a guide plate (125), and the guide plate (125) is provided with a plurality of guide grooves (127). The plurality of guide grooves (127) spirally approach the one-way valve (123) in a clockwise direction.

8. A pickling box according to claim 7, characterized in that: A filter screen (128) is provided on the guide plate (125), and the filter screen (128) covers the guide groove (127).

Images