Sludge reduction liquid caustic soda production equipment

Abstract

The invention discloses sludge reduction liquid caustic soda production equipment, and belongs to the technical field of liquid caustic soda production devices, the sludge reduction liquid caustic soda production equipment comprises a tank body and two rotating shafts distributed along the center line of the tank body, a sealing column is slidably arranged between the upper rotating shaft and the lower rotating shaft, two rows of transverse pipes are fixedly arranged on the peripheral walls of the outer sides of the rotating shafts, and a vertical pipe is arranged at each row of transverse pipes; the vertical pipe penetrates through the transverse pipes in the vertical direction and is in running fit with the transverse pipes; the sealing column is matched with the tank body through a limiting assembly, and the rotating shaft located on the lower portion is connected with the vertical pipe through a driving assembly. By arranging the transverse pipe and the vertical pipe, on one hand, a solution in the tank body can be stirred, and on the other hand, the solution at each position in the tank body can be sampled, so that the reaction condition of the solution can be checked, and the device is integrally compact, can circularly sample in the stirring process, and is more convenient to operate.

Description

Technical Field

[0001] The invention relates to the technical field of liquid caustic soda production devices, and in particular to sludge-reduced liquid caustic soda production equipment. Background Art

[0002] In the hundreds of years of tradition, there are two main types of alkali used in industrial wastewater treatment. Sodium hydroxide products and lime processing products are widely used. Sodium hydroxide is also called caustic soda, caustic soda, solid alkali, and caustic soda. When producing sodium hydroxide by the causticization method, the raw materials need to be put into the reaction tank for reaction to obtain sodium hydroxide products.

[0003] Chinese patent CN213493642U discloses a production device for high-purity sodium hydroxide liquid, which filters the raw materials through a filter to reduce the impurity content in the raw materials and the products obtained by the reaction, thereby improving the purity of the product. The decomposition of fluoride salts in the product is promoted by heating with an electric heating element, which can further improve the purity of the product.

[0004] The above-mentioned device stirs the raw materials by means of the main pipe and stirring blades, thereby promoting the reaction between the raw materials. However, when the mixed solution needs to be sampled and checked during the reaction, the above-mentioned device needs to stop running to sample the solution, which makes the overall operation inconvenient and also affects the progress of the entire reaction. In summary, there is still room for improvement in the above-mentioned device.

[0005] Therefore, it is necessary to provide a sludge reduction liquid alkali production equipment to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a sludge reduction liquid alkali production equipment to solve the problem that the existing device proposed in the above background technology stirs the raw materials by setting a main pipe and stirring blades to promote the reaction between the raw materials, but when the mixed solution needs to be sampled and checked during the reaction, the above device needs to stop running to sample the solution, making the overall operation more inconvenient.

[0007] Based on the above ideas, the present invention provides the following technical solutions: a sludge reduction liquid caustic soda production equipment, comprising a tank body and two rotating shafts distributed along the center line of the tank body, a sealing column is slidably arranged between the upper and lower rotating shafts, two rows of horizontal tubes are fixedly arranged on the outer peripheral wall of the rotating shaft, and a vertical tube is arranged at each row of horizontal tubes, and the vertical tube passes through a plurality of horizontal tubes in a vertical direction and rotates in coordination with the horizontal tubes;

[0008] The sealing column cooperates with the tank body through a limiting assembly, and the rotating shaft and the vertical tube below are connected through a driving assembly. When the rotating shaft drives the horizontal tube to rotate, the sealing column can be driven to reciprocate in the vertical direction through the provided limiting assembly, and the vertical tube can be driven to rotate by the provided driving assembly, so that the vertical tube can be connected with each horizontal tube in sequence from bottom to top. When a horizontal tube is connected with the vertical tube and the sealing column moves upward, the reaction solution in the tank body can be sucked to the sealing column through the horizontal tube and the vertical tube and finally squeezed out by the sealing column.

[0009] As a further solution of the present invention: a positioning strip is fixedly provided on the outer peripheral wall of the sealing column, and grooves for sealing with the sealing column are provided on the end surfaces of the upper and lower rotating shafts that are arranged opposite to each other, and a positioning groove for slidingly cooperating with the positioning strip is provided on the inner wall of the groove.

[0010] As a further solution of the present invention: the limiting assembly includes two push rods fixedly arranged on the outer side wall of the sealing column, the connecting line of the two push rods passes through the axis of the sealing column, and a top plate matching with the push rods is arranged on the inner wall of the tank body, the top surface of the top plate is arranged as an inclined extrusion surface, and the top plate can move in the vertical direction relative to the tank body.

[0011] As a further solution of the present invention: the driving assembly includes a sliding sleeve arranged on the outside of the rotating shaft and elastically matched with the rotating shaft, the sliding sleeve is located at the bottom horizontal tube, the end of the sliding sleeve away from the rotating shaft is slidably equipped with a driving rod, a spiral limiting groove is opened on the outer peripheral wall of the driving rod, and a limiting block slidingly matched with the limiting groove is fixedly arranged on the inner wall of the sliding sleeve, the outer side of the driving rod is sleeved with an active bevel gear, the active bevel gear and the driving rod are connected by a one-way bearing, the outer side of the vertical tube is fixedly sleeved with a driven bevel gear meshing with the active bevel gear, a sleeve is fixedly arranged on the outer wall of the rotating shaft located below, and a sliding rod is elastically installed on the end of the sleeve away from the rotating shaft, the end of the sliding rod away from the sleeve is fixedly connected to the sliding sleeve, and a pull rope is fixedly arranged between the sliding rod and the sealing column.

[0012] As a further solution of the present invention: the outer sides of the driving rod and the sliding sleeve are both provided with mounting seats, and the two mounting seats are fixedly connected to the cross tube. The driving rod passes through the mounting seats and rotates therewith, and a strip groove is opened on the inner wall of the mounting seat on the sliding sleeve, and a convex strip that slides with the strip groove is fixedly provided on the outer wall of the sliding sleeve.

[0013] As a further solution of the present invention: the horizontal tube is provided with a through hole matching with the vertical tube, the end of the horizontal tube away from the rotating shaft is provided with a liquid inlet hole connected with the through hole, the outer peripheral wall of the vertical tube is provided with a liquid inlet port matching with each liquid inlet port, the multiple liquid inlets on the vertical tube are distributed in a spiral shape, the horizontal tube located at the bottom layer is provided with a diversion channel, the rotating shaft is provided with a through diversion hole, the two ends of the diversion hole located on the upper rotating shaft respectively extend to the two end end surfaces of the rotating shaft, one end of the diversion hole located on the lower rotating shaft is connected with the diversion channel, the other end of the diversion hole located on the lower rotating shaft extends to the top end surface of the rotating shaft, the end of the diversion channel away from the rotating shaft is connected with the through hole, the sealing column is provided with a through hole, the outer wall of the vertical tube is provided with a plurality of drainage ports, and the multiple drainage ports and the liquid inlet port at the bottom end of the vertical tube are evenly distributed in a ring array.

[0014] As a further solution of the present invention: a first one-way valve is installed in the through hole, so that the liquid below the sealing column can flow unidirectionally to the top of the sealing column, a second one-way valve is installed in the guide hole on the lower rotating shaft, so that the solution in the guide hole can be introduced into the groove unidirectionally, and a one-way valve is installed in the drain port, so that the solution in the vertical pipe can be discharged unidirectionally through the drain port.

[0015] As a further solution of the present invention: the top of the tank body is sealed by a cover plate, and a plurality of liquid inlet pipes are installed on the cover plate.

[0016] As a further solution of the present invention: the plane formed by the two rows of transverse tubes passes through the axis of the rotating shaft.

[0017] As a further solution of the present invention, the rotating shaft located at the top passes through the cover plate and rotates with the cover plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are: this device can, through the provision of horizontal and vertical tubes, stir the solution in the tank on the one hand, and can sample the solution at various positions in the tank on the other hand, thereby facilitating the viewing of the reaction conditions of the solution; the device is compact as a whole, and can perform cyclic sampling during the stirring process, making the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the tank body of the present invention;

[0022] Figure 3 It is a schematic diagram of the cooperation between the top rod and the top plate of the present invention;

[0023] Figure 4 The present invention Figure 3 A schematic diagram of the enlarged structure at point A;

[0024] Figure 5 It is a schematic diagram of the connection structure between the horizontal pipe and the vertical pipe of the present invention;

[0025] Figure 6 It is a schematic diagram of the cooperation between the rotating shaft and the sealing column of the present invention;

[0026] Figure 7 The present invention Figure 5 A schematic diagram of the enlarged structure at B;

[0027] Figure 8 It is a schematic diagram of the electromagnet structure of the present invention;

[0028] Fig. 9 The present invention Figure 5 A schematic diagram of the enlarged structure at C;

[0029] Fig.10 It is a schematic diagram of the structure of the liquid inlet and the liquid discharge port of the present invention;

[0030] Fig.11 It is a distribution diagram of the liquid inlet and the liquid discharge outlet of the present invention.

[0031] In the figure: 1. tank body; 2. rotating shaft; 201. guide hole; 3. belt; 4. base; 5. horizontal pipe; 501. liquid inlet hole; 6. vertical pipe; 601. liquid inlet; 602. liquid discharge port; 7. sealing column; 701. positioning strip; 702. through hole; 8. base; 9. top plate; 901. extrusion surface; 10. ejector rod; 11. connecting rod; 12. pull rope; 13. sliding sleeve; 1301. convex strip; 1302. limit block; 14. mounting seat; 15. driving rod; 1501. limit groove; 16. active bevel gear; 17. sleeve; 18. sliding rod; 19. electromagnet; 20. guide channel. DETAILED DESCRIPTION

[0032] like Figure 1-Figure 5 As shown, a sludge reduction liquid caustic soda production device comprises a tank body 1 and two rotating shafts 2 distributed along the center line of the tank body 1, the top of the tank body 1 is sealed by a cover plate, and the rotating shaft 2 located at the top passes through the cover plate and rotates with the cover plate, a sealing column 7 is arranged between the upper and lower rotating shafts 2, and the sealing column 7 can move in the vertical direction relative to the two rotating shafts 2;

[0033] Reference Figure 2-Figure 10As shown, a positioning strip 701 is fixedly arranged on the outer peripheral wall of the sealing column 7, and grooves for sealing with the sealing column 7 are provided on the end surfaces of the upper and lower rotating shafts 2 which are arranged opposite to each other, and a positioning groove for slidingly cooperating with the positioning strip 701 is provided on the inner wall of the groove. Through this structure, the two rotating shafts 2 and the sealing column 7 can rotate synchronously;

[0034] Two rows of transverse tubes 5 are fixedly provided on the outer peripheral wall of the rotating shaft 2, and the plane formed by the two rows of transverse tubes 5 passes through the axis of the rotating shaft 2. Through this structure, when the rotating shaft 2 drives the transverse tubes 5 to rotate, the raw materials in the tank body 1 can be stirred. Furthermore, each row of transverse tubes 5 is provided with a vertical tube 6, and the vertical tube 6 passes through multiple transverse tubes 5 in the vertical direction and rotates with multiple transverse tubes 5. In actual use, during the rotation of the vertical tube 6, the vertical tube 6 can be connected with each transverse tube 5 in sequence from bottom to top. The sealing column 7 cooperates with the tank body 1 through a limiting component, and the rotating shaft 2 at the bottom and the vertical tube 6 are connected through a driving component. In actual application, the driving assembly can be arranged on one side or both sides of the rotating shaft 2. In the process of the rotating shaft 2 driving the horizontal tube 5 to rotate, the sealing column 7 can be driven to reciprocate in the vertical direction through the set limit assembly, and the vertical tube 6 can be driven to rotate through the set driving assembly, so that the vertical tube 6 can be connected with each horizontal tube 5 in turn. When a horizontal tube 5 is connected with the vertical tube 6 and the sealing column 7 moves upward, the reaction solution in the tank body 1 can be sucked into the groove of the rotating shaft 2 through the horizontal tube 5 and the vertical tube 6, and finally squeezed out by the sealing column 7, which is convenient for the staff to sample and check the reaction solution in the tank body 1.

[0035] The limiting assembly includes two push rods 10 fixedly arranged on the outer side wall of the sealing column 7, and the connecting line of the two push rods 10 passes through the axis of the sealing column 7, and a top plate 9 matching with the push rods 10 is arranged on the inner wall of the tank body 1, and the top surface of the top plate 9 is arranged as an inclined extrusion surface 901, and the top plate 9 can move in the vertical direction relative to the tank body 1. When the push rod 10 rotates with the sealing column 7 and passes over the extrusion surface 901, the pressure of the extrusion surface 901 on the push rod 10 can drive the sealing column 7 to move upward, so that the space below the sealing column 7 appears to be in a negative pressure state.

[0036] The driving assembly includes a sleeve 13 disposed outside the rotating shaft 2 and elastically matched with the rotating shaft 2. The sleeve 13 is located above the bottom horizontal tube 5. The end of the sleeve 13 away from the rotating shaft 2 is slidably equipped with a driving rod 15. Figure 5-Figure 7 As shown, a spiral limiting groove 1501 is provided on the outer peripheral wall of the driving rod 15, and a limiting block 1302 that slides with the limiting groove 1501 is fixedly provided on the inner wall of the sliding sleeve 13. Through this structure, when the sliding sleeve 13 moves relative to the driving rod 15, it can drive the driving rod 15 to rotate.

[0037] Furthermore, an active bevel gear 16 is sleeved on the outer side of the driving rod 15, and the active bevel gear 16 is connected to the driving rod 15 via a one-way bearing. Through this structure, the driving rod 15 can only drive the active gear to rotate in a single direction, and a driven bevel gear meshing with the active bevel gear 16 is sleeved on the outer side of the vertical tube 6.

[0038] A sleeve 17 is fixedly provided on the outer wall of the rotating shaft 2 located below, and a sliding rod 18 is elastically installed on the end of the sleeve 17 away from the rotating shaft 2. The end of the sliding rod 18 away from the sleeve 17 is fixedly connected to the above-mentioned sliding sleeve 13, and a pull rope 12 is fixedly provided between the sliding rod 18 and the sealing column 7. When the sealing column 7 moves upward, the sliding rod 18 and the sliding sleeve 13 can be pulled through the pull rope 12, thereby prompting the sliding sleeve 13 to move in the direction away from the vertical pipe 6.

[0039] In order to install the driving rod 15 and the sliding sleeve 13, the present solution provides a mounting seat 14 on the outer side of the driving rod 15 and the sliding sleeve 13. Specifically, the two mounting seats 14 are fixedly connected to the cross tube 5, the driving rod 15 passes through the mounting seat 14 and rotates therewith, and a strip groove is provided on the inner wall of the mounting seat 14 at the sliding sleeve 13, and a convex strip 1301 that slides with the strip groove is fixedly provided on the outer wall of the sliding sleeve 13. Through this structure, the sliding sleeve 13 can only slide but not rotate relative to the mounting seat 14.

[0040] In order to connect the vertical tube 6 and the horizontal tube 5, the present solution provides a through hole matched with the vertical tube 6 on the horizontal tube 5, so that the vertical tube 6 can be rotatably connected with the horizontal tube 5 through the through hole, and the end of the horizontal tube 5 away from the rotating shaft 2 is provided with a liquid inlet hole 501 connected with the through hole, and the outer peripheral wall of the vertical tube 6 is provided with a liquid inlet port 601 matched with each liquid inlet port 501, and the multiple liquid inlets 601 on the vertical tube 6 are distributed in a spiral shape. Through this distribution mode, during the rotation of the vertical tube 6, each liquid inlet port 601 on the vertical tube 6 can be aligned with each liquid inlet port 501 on the horizontal tube 5 from bottom to top in sequence, so that the solution in the tank body 1 can flow into the vertical tube 6;

[0041] Furthermore, a guide channel 20 is provided on the bottommost horizontal tube 5, and the guide channel 20 is arranged along the axis of the horizontal tube 5. A through guide hole 201 is provided on the rotating shaft 2. Specifically, both ends of the guide hole 201 on the upper rotating shaft 2 extend to both end faces of the rotating shaft 2, respectively. One end of the guide hole 201 on the lower rotating shaft 2 is connected to the guide channel 20, and the other end of the guide hole 201 on the lower rotating shaft 2 extends to the top end face of the rotating shaft 2. One end of the guide channel 20 away from the rotating shaft 2 is connected to the above-mentioned through hole. This structure is conducive to introducing the solution in the vertical tube 6 into the notch.

[0042] Furthermore, the sealing column 7 is provided with a through hole 702 along its axial direction. In actual use, a first one-way valve is installed in the through hole 702, so that the liquid below the sealing column 7 can flow unidirectionally to the top of the sealing column 7. Similarly, a second one-way valve needs to be installed in the guide hole 201 on the lower rotating shaft 2, so that the solution in the guide hole 201 can only be introduced into the slot in one direction.

[0043] Reference Figure 10-11 As shown, in addition to a plurality of liquid inlets 601 provided on the outer wall of the vertical tube 6, a plurality of liquid discharge ports 602 are also required to be provided on the outer wall of the vertical tube 6. The plurality of liquid discharge ports 602 are distributed near the bottom end of the vertical tube 6 and are on the same horizontal plane as the liquid inlet 601 at the bottom end of the vertical tube 6. The plurality of liquid discharge ports 602 and the liquid inlet 601 at the bottom end of the vertical tube 6 are evenly distributed in a circular array. When the vertical tube 6 rotates so that the liquid discharge port 602 is aligned with the guide channel 20, the solution in the vertical tube 6 can be introduced into the horizontal tube 5. Of course, in actual operation, a one-way valve can be installed in the liquid discharge port 602 so that the solution in the vertical tube 6 can only be discharged in one direction through the liquid discharge port 602.

[0044] In actual use, a plurality of liquid inlet pipes are installed on the cover plate, and the raw materials required for the reaction are introduced into the tank body 1 through the liquid inlet pipes. The positioning strip 701 cooperates with the positioning groove, so that the rotating shaft 2 can synchronously drive the sealing column 7 to rotate. Therefore, by driving the rotating shaft 2 to rotate, the vertical tube 6, the horizontal tube 5 and the top rod 10 can be driven to rotate in the tank body 1, which is beneficial to stirring the raw materials in the tank body 1. When it is necessary to sample and check the raw materials in the tank body 1, the top plate 9 is driven to move upward, so that the top rod 10 can pass through the extrusion surface 901 on the top plate 9 during the rotation process. The pressure of the extrusion surface 901 on the top rod 10 can drive the sealing column 7 to move upward. In the initial state, the liquid inlet hole 501 on the bottom horizontal tube 5 is aligned with the liquid inlet port 601 on the vertical tube 6, so that the external solvent The liquid can be sucked into the bottom horizontal tube 5, so when the sealing column 7 moves upward relative to the rotating shaft 2, the solution in the tank body 1 can enter the vertical tube 6 through the liquid inlet hole 501, and then enter the guide channel 20 of the horizontal tube 5 through the discharge port 602 on the vertical tube 6 and finally flow into the notch through the guide hole 201 on the lower rotating shaft 2. When the sealing column 7 moves upward relative to the rotating shaft 2, the sealing column 7 can pull the sliding rod 18 through the pull rope 12, so as to cause the sliding sleeve 13 to move toward the direction close to the rotating shaft 2. At this time, the driving rod 15 can be driven to rotate by the cooperation of the limit block 1302 and the limit groove 1501. However, since the driving rod 15 and the active bevel gear 16 are connected by a one-way bearing, in this state, the driving rod 15 cannot drive the active bevel gear 16 to rotate.

[0045] When the top rod 10 passes over the top plate 9, the sealing column 7 can move downward relative to the rotating shaft 2. During this process, the sealing column 7 can squeeze the solution below it, so that the solution in the groove can flow to the top of the sealing column 7 through the through hole 702. In addition, as the sealing column 7 moves downward, the sliding sleeve 13 can move in the direction away from the rotating shaft 2 and reset. At this time, the cooperation between the limit block 1302 and the limit groove 1501 can drive the driving rod 15 to rotate, so that the driving rod 15 can drive the active bevel gear 16 to rotate synchronously, and the engagement of the active bevel gear 16 with the driven bevel gear allows the driving rod 15 to drive the vertical tube 6 to rotate (the rotation angle of the vertical tube 6 is related to the number of horizontal tubes 5 on one side. Specifically, in this solution, the number of horizontal tubes 5 in a row is set to four. Therefore, the vertical tube 6 rotates by 90° each time), so that the liquid inlet 601 at the bottom of the vertical tube 6 is aligned with the liquid inlet 601 at the bottom of the vertical tube 6. The liquid inlet holes 501 on the bottom-layer horizontal tube 5 are staggered, so that the liquid inlet holes 501 on the bottom-layer horizontal tube 5 can be sealed through the outer wall of the vertical tube 6, and the penultimate liquid inlet port 601 on the vertical tube 6 is aligned with the liquid inlet hole 501 on the penultimate horizontal tube 5, so that the solution in the tank body 1 can be sucked into the vertical tube 6 through the penultimate horizontal tube 5 and finally introduced under the sealing column 7. Therefore, when the sealing column 7 moves upward again, the solution in the tank body 1 can be introduced under the sealing column 7 through the penultimate horizontal tube 5, and the solution above the sealing column 7 can be squeezed out through the guide hole 201 of the upper rotating shaft 2, which is convenient for collection by the staff. By repeating the above operation, the solution in the tank body 1 can be introduced into the sealing column 7 through each horizontal tube 5 in turn and finally be discharged through the guide hole 201 of the upper rotating shaft 2, which is convenient for sampling the solution at various positions in the tank body 1.

[0046] In summary, this device can stir the solution in the tank body 1 through the provision of the horizontal tube 5 and the vertical tube 6, on the one hand, and can sample the solution at various positions in the tank body 1, which is beneficial for checking the reaction status of the solution. The device is compact as a whole and can perform cyclic sampling during the stirring process, making the operation more convenient. Of course, in actual use, the tank body 1 can be heated to promote the reaction of the raw materials in the tank body 1.

[0047] like Figure 1-Figure 5 As shown, in order to drive the upper rotating shaft 2 to rotate, the present solution has a motor fixedly installed on the top of the cover plate, and the output shaft of the motor and the outer side of the upper rotating shaft 2 are fixedly sleeved with pulleys, and the outer sides of the two pulleys are sleeved with belts 3 to drive the rotating shaft 2 to rotate, and a base 4 is installed at the bottom end of the lower rotating shaft 2, and the rotating shaft 2 and the base 4 are rotatably matched, and the base 4 is fixedly installed at the bottom end of the tank body 1, and the bottom end of the tank body 1 is connected to a drain pipe, and a valve is installed on the drain pipe, which is conducive to the discharge of the solution.

[0048] In order to drive the top plate 9 to move, a base 8 is provided on both sides of the bottom of the top plate 9 of the present scheme, and a connecting rod 11 is slidably provided on the top of the base 8. The top of the connecting rod 11 is fixedly connected to the top plate 9, and an electromagnet 19 is fixedly provided at the bottom end of the base 8. A magnetic block matching the electromagnet 19 is fixedly embedded at the bottom end of the connecting rod 11. When the electromagnet 19 is energized, the end of the electromagnet 19 opposite to the magnetic block has the same magnetic pole, and a supporting spring is fixedly provided between the connecting rod 11 and the electromagnet 19. When the electromagnet 19 is in the energized state, it can drive the connecting rod 11 and the top plate 9 to move upward.

[0049] Reference Figure 5 As shown, the pull rope 12 passes through the rotating shaft 2 and the sleeve 17 and slidably cooperates with the two, and the first spring is fixedly arranged on the sliding rod 18 and the inner bottom surface of the sleeve 17.

[0050] Both ends of the vertical tube 6 are in a closed state, and both ends of the vertical rod are rotatably provided with rings, which are fixedly connected to the horizontal tube 5. In actual use, a pressure valve can be installed at the liquid inlet hole 501 on the bottom horizontal tube 5, so that during the stirring process, the solution in the tank body 1 will not enter the horizontal tube 5. When the sealing column 7 moves upward, a negative pressure is formed in the bottom horizontal tube 5, so that the pressure valve can be opened.

Claims

1. A sludge reduction liquid caustic soda production equipment, comprising a tank body and two rotating shafts distributed along the center line of the tank body, a sealing column is slidably arranged between the upper and lower rotating shafts, characterized in that: Two rows of horizontal tubes are fixedly arranged on the outer peripheral wall of the rotating shaft, and each row of horizontal tubes is provided with a vertical tube, and the vertical tube passes through the plurality of horizontal tubes in the vertical direction and rotates in cooperation with the horizontal tubes; The sealing column cooperates with the tank body through a limiting assembly, and the rotating shaft and the vertical tube below are connected through a driving assembly. When the rotating shaft drives the horizontal tube to rotate, the sealing column can be driven to reciprocate in the vertical direction through the provided limiting assembly, and the vertical tube can be driven to rotate by the provided driving assembly, so that the vertical tube can be connected with each horizontal tube in sequence from bottom to top. When a horizontal tube is connected with the vertical tube and the sealing column moves upward, the reaction solution in the tank body can be sucked to the sealing column through the horizontal tube and the vertical tube and finally squeezed out by the sealing column.

2. The sludge reduction liquid caustic soda production equipment according to claim 1 is characterized by: A positioning strip is fixedly arranged on the outer peripheral wall of the sealing column, and grooves for sealing with the sealing column are provided on the end surfaces of the upper and lower rotating shafts which are arranged opposite to each other, and a positioning groove for slidingly cooperating with the positioning strip is provided on the inner wall of the groove.

3. The sludge reduction liquid caustic soda production equipment according to claim 2 is characterized by: The limiting assembly includes two push rods fixedly arranged on the outer side wall of the sealing column, and the connecting line of the two push rods passes through the axis of the sealing column. A top plate cooperating with the push rods is arranged on the inner wall of the tank body, and the top surface of the top plate is arranged as an inclined extrusion surface. The top plate can move in the vertical direction relative to the tank body.

4. The sludge reduction liquid caustic soda production equipment according to claim 3 is characterized by: The driving assembly includes a sliding sleeve arranged on the outside of the rotating shaft and elastically matched with the rotating shaft, the sliding sleeve is located at the bottom horizontal tube, the end of the sliding sleeve away from the rotating shaft is slidably equipped with a driving rod, a spiral limiting groove is opened on the outer peripheral wall of the driving rod, and a limiting block slidingly matched with the limiting groove is fixedly arranged on the inner wall of the sliding sleeve, an active bevel gear is sleeved on the outer side of the driving rod, the active bevel gear and the driving rod are connected by a one-way bearing, a driven bevel gear meshing with the active bevel gear is fixedly sleeved on the outer side of the vertical tube, a sleeve is fixedly arranged on the outer wall of the rotating shaft located below, and a sliding rod is elastically installed on the end of the sleeve away from the rotating shaft, the end of the sliding rod away from the sleeve is fixedly connected to the sliding sleeve, and a pull rope is fixedly arranged between the sliding rod and the sealing column.

5. The sludge reduction liquid caustic soda production equipment according to claim 4 is characterized by: The outer sides of the driving rod and the sliding sleeve are both provided with mounting seats, and both mounting seats are fixedly connected to the cross tube. The driving rod passes through the mounting seats and rotates therewith. A strip groove is opened on the inner wall of the mounting seat at the sliding sleeve, and a convex strip that slides with the strip groove is fixedly provided on the outer wall of the sliding sleeve.

6. The sludge reduction liquid caustic soda production equipment according to claim 5 is characterized by: The horizontal tube is provided with a through hole matching with the vertical tube, and the end of the horizontal tube away from the rotating shaft is provided with a liquid inlet hole connected with the through hole, and the outer peripheral wall of the vertical tube is provided with a liquid inlet port matching with each liquid inlet port, and the multiple liquid inlets on the vertical tube are distributed in a spiral shape, and the horizontal tube located at the bottom layer is provided with a flow guide channel, and a through flow guide hole is provided on the rotating shaft, and the two ends of the flow guide hole located on the upper rotating shaft extend to the two end end surfaces of the rotating shaft respectively, and one end of the flow guide hole located on the lower rotating shaft is connected with the flow guide channel, and the other end of the flow guide hole located on the lower rotating shaft extends to the top end surface of the rotating shaft, and the end of the flow guide channel away from the rotating shaft is connected with the through hole, and the sealing column is provided with a through hole, and a plurality of drainage ports are provided on the outer wall of the vertical tube, and the plurality of drainage ports and the liquid inlet port at the bottom end of the vertical tube are evenly distributed in a ring array.

7. The sludge reduction liquid caustic soda production equipment according to claim 6 is characterized by: A first one-way valve is installed in the through hole, so that the liquid below the sealing column can flow unidirectionally to the top of the sealing column. A second one-way valve is installed in the guide hole on the lower rotating shaft, so that the solution in the guide hole can be introduced into the slot unidirectionally. A one-way valve is installed in the drain port, so that the solution in the vertical pipe can be discharged unidirectionally through the drain port.

8. The sludge reduction liquid caustic soda production equipment according to claim 1 is characterized by: The top of the tank body is sealed by a cover plate, and a plurality of liquid inlet pipes are installed on the cover plate.

9. The sludge reduction liquid caustic soda production equipment according to claim 1, characterized in that: The plane formed by the two rows of transverse tubes passes through the axis of the rotating shaft.

10. The sludge reduction liquid caustic soda production equipment according to claim 8, characterized in that: The rotating shaft located at the top passes through the cover plate and is rotatably matched with the cover plate.

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