Equipment for producing desulfurizing agent by utilizing waste acid

Abstract

The invention discloses equipment for producing a desulfurizing agent by utilizing waste acid, and relates to the technical field of advanced environmental protection industries, in particular to the equipment for producing the desulfurizing agent by utilizing the waste acid, which comprises a filter press body and a filter plate, a feeding cylinder is fixedly mounted at the center of the filter plate, and a partition plate is fixedly connected to the middle of the inner circumferential surface of the feeding cylinder; according to the equipment for producing the desulfurizing agent by utilizing the waste acid, the driving cylinders are arranged on the filter plates, when the filter plates move close to each other in opposite directions, the driving cylinders abut against each other and move towards the interior of the feeding barrel to push the driving blocks to compress the springs, and meanwhile, the hemispherical driven blocks slide in the spiral grooves to drive the driving barrel to rotate. The driving cylinder drives the first driven cylinder and the second driven cylinder to rotate at a high speed through the elastic clamping block and the limiting driven block. Based on the centrifugal force principle of circular motion, the strong centrifugal force generated by high-speed rotation is far greater than the adhesive force between materials and the inner wall of the feeding cylinder, and residual materials in the feeding cylinder can be powerfully thrown away.

Description

Technical Field

[0001] The present invention relates to the technical field of advanced environmental protection industries. More specifically, the present invention relates to an apparatus for producing desulfurizing agents using waste acid. Background Art

[0002] The advanced environmental protection industry is accelerating its development towards refinement and circularization. The problem of waste acid pollution generated during industrial production has become an important bottleneck restricting green development due to its wide sources, great harm, and difficult treatment. As a typical hazardous waste, waste acid widely exists in industrial fields such as chemical synthesis, steel pickling, electroplating surface treatment, and coal-fired power generation. Taking coal-fired power generation as an example, currently, power plants still mainly use coal as fuel. During the combustion process, flue gas needs to be desulfurized, and a large amount of magnesium sulfite by-products will be generated in this process. If such acid-containing waste is not properly disposed of, it will cause systematic harm to the ecological environment through multiple channels: firstly, it will lead to soil acidification and decreased fertility, threatening agricultural production safety; secondly, it will pollute surface water and groundwater, destroying the balance of the aquatic ecosystem; furthermore, it will release acidic gases through volatilization, exacerbating air pollution and forming acid rain, posing a direct threat to building facilities, vegetation, and human health.

[0003] The advanced environmental protection industry is committed to achieving efficient treatment and resource recycling of various pollutants through technological innovation. Desulfurizing agents play an indispensable role in industrial production, especially in enterprises with strict requirements for sulfur dioxide emissions such as coal-fired power plants and steel mills. High-quality desulfurizing agents can effectively remove sulfur dioxide from waste gas and reduce its pollution to the atmosphere. However, the production of traditional desulfurizing agents often relies on resources such as natural ores, resulting in high production costs and potentially having a certain impact on the environment during the production process.

[0004] Converting waste acid into desulfurizing agents can not only effectively solve the environmental pollution problem caused by waste acid but also open up a new production route for desulfurizing agents, reducing the dependence on traditional resources, which highly conforms to the concept of resource recycling and green development advocated by the advanced environmental protection industry. From the perspective of resource utilization, this conversion realizes the resourceization of waste, in line with the principles of "reduction, reuse, and resourceization" in circular economy. In terms of chemical principles, certain components in waste acid can be converted into substances with desulfurization functions through specific chemical reactions, turning waste into treasure.

[0005] At present, there have been many studies on using waste acid to produce desulfurization agents. Taking the method of "producing manganese sulfate and magnesium sulfate by co-production using waste magnesium sulfite from power plants" with the application number 202410812979.6 as an example, this patent elaborates on the method of extracting desulfurization agents from waste acid magnesium sulfite. In this method, a filtration operation needs to be performed on the material, which is based on the principle of solid-liquid separation to separate solids and liquids through a filtration medium. The solid material obtained after filtration is dried, and finally, an iron oxide desulfurization agent is obtained.

[0006] In industrial production, when filtering materials, the plate and frame filter press is one of the commonly used devices. It uses the alternating arrangement of filter plates and filter frames to form a filtration chamber. Under the action of pressure, the liquid in the suspension flows out through the filter cloth, and the solid particles are retained in the filter chamber, thus achieving solid-liquid separation. However, the existing plate and frame filter presses have certain defects in actual use. Due to factors such as the viscosity of the material, particle characteristics, and pressure distribution during the filtration process, there is often some residual material in the material channels on the filter plates. Analyzed from the perspective of fluid mechanics, after filtration is completed, there may be pressure differences and flow rate changes in the material channels, resulting in some materials not being completely discharged; from the perspective of material characteristics, materials with greater viscosity are more likely to adhere to the channel walls and are difficult to completely remove. These residual materials may affect subsequent filtration operations, reduce the operating efficiency of the equipment, and even cause equipment failures, increasing maintenance costs. Summary of the Invention

[0007] Aiming at the deficiencies of the prior art, the present invention provides a device for producing desulfurization agents using waste acid, which solves the problems raised in the above-mentioned background technology.

[0008] The technical solution of the present invention is as follows:

[0009] To achieve the above purposes, the present invention is realized through the following technical solutions: A device for producing desulfurization agents using waste acid, including a filter press body and filter plates. A feed cylinder is fixedly installed at the center of the filter plate, and a partition plate is fixedly connected to the middle of the inner peripheral surface of the feed cylinder. On both the front and rear sides of the partition plate, there are rotatable active cylinders. On the inner peripheral surface of the active cylinder, there are a second driven cylinder and a first driven cylinder that can rotate together with the active cylinder or can rotate by inertia. The shape formed by the inner peripheral surfaces of the second driven cylinder and the first driven cylinder is a trumpet shape with a large outer diameter and a small inner diameter. On both the front and rear sides of the feed cylinder, there are multiple driving cylinders that can provide power for the rotation of the active cylinder.

[0010] Preferably, a plurality of rectangular limit grooves corresponding to the plurality of driving cylinders are opened on the inner peripheral surface of the feed cylinder. A driving block is slidably connected in the rectangular limit groove, and one end of the driving cylinder abuts against the corresponding driving block. The side of the driving block away from the driving cylinder is fixedly connected to a spring with one end disposed on the partition plate.

[0011] Preferably, a spiral groove is formed on the outer peripheral surface of the active cylinder, and a hemispherical driven block whose one end is slidably connected in the spiral groove is fixedly connected to one side of the driving block close to the active cylinder.

[0012] Preferably, limiting driven blocks whose one ends are slidably connected in the active cylinder are fixedly connected to the outer peripheral surfaces of the first driven cylinder and the second driven cylinder. A second annular groove adapted to the limiting driven blocks is formed on the inner peripheral surface of the active cylinder, and a plurality of elastic clamping blocks capable of abutting against the limiting driven blocks on one side are uniformly arranged on the inner side surface of the second annular groove.

[0013] Preferably, an elastic cylinder is fixedly connected to one end of the inner peripheral surface of the second driven cylinder close to the partition plate, and the end of the elastic cylinder away from the second driven cylinder is fixedly connected to the outermost end of the inner peripheral surface of the first driven cylinder.

[0014] Preferably, a plurality of hidden grooves are uniformly formed on the inner peripheral surface of the second annular groove, and one end of the elastic clamping block away from the first driven cylinder is fixedly connected in the hidden groove.

[0015] Preferably, an extrusion rod is fixedly connected to one side of the driving block away from the driving cylinder. One end of the extrusion rod away from the driving block is slidably connected with an extrusion cylinder. The end of the extrusion cylinder away from the extrusion rod is fixedly connected to the partition plate, and the spring is sleeved on the extrusion rod and the extrusion cylinder.

[0016] Preferably, first annular grooves are formed on both the front and rear sides of the partition plate. An annular protrusion whose one end is inserted into the first annular groove protrudes from one side of the second driven cylinder abutted against the partition plate. A plurality of second channels whose one ends are communicated with the first annular groove are formed on the inner peripheral surface of the second driven cylinder, and a plurality of first channels whose one ends are communicated with the extrusion cylinder are formed on the inner side surface of the first annular groove.

[0017] Preferably, an annular diversion groove is formed on the outer surface of the elastic cylinder.

[0018] Advantageous Effects

[0019] The present invention provides a device for producing a desulfurizer using waste acid, having the following advantageous effects:

[0020] 1. The equipment for producing desulfurizer using waste acid sets a driving cylinder on the filter plate. When the filter plates move toward each other, the driving cylinders collide with each other and move into the feed barrel, pushing the driving block to compress the spring. At the same time, the hemispherical driven block slides in the spiral groove, driving the main cylinder to rotate. The main cylinder drives the first driven cylinder and the second driven cylinder to rotate at high speed through the elastic block and the limit driven block. Based on the centrifugal force principle of circular motion, the strong centrifugal force generated by high-speed rotation is much greater than the adhesion between the material and the inner wall of the feed barrel, and can effectively throw away the residual material in the feed barrel. This setting greatly improves the self-cleaning performance of the feed barrel, effectively reduces the hindrance of material residue to the subsequent feeding process, ensures that the feeding process is efficient and stable, and greatly improves the overall working efficiency of the filter press body.

[0021] 2. The equipment for producing desulfurizer using waste acid connects the first driven cylinder and the second driven cylinder by setting an elastic cylinder, and uses the speed difference caused by the different rotational inertia of the two cylinders to produce irregular folds on the inner circumference of the elastic cylinder. The folds destroy the bonding force between the material and the elastic cylinder wall, and the "airway" structure formed between the folds produces an airflow scouring effect, further weakening the adhesion of the material. At the same time, an extrusion rod, an extrusion cylinder and related water channels are set. When the driving cylinder pushes the extrusion rod, the water medium transmits pressure, causing the inner circumference of the elastic cylinder to expand, reducing the adhesion between the material and the cylinder wall from a microscopic level. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the filter plate of the present invention;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the feed barrel of the present invention when viewed from the front;

[0025] Figure 4 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0026] Figure 5 It is a schematic diagram of the matching structure of the driving cylinder, the first driven cylinder, the limit driven block and the elastic clamping block of the present invention;

[0027] Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0028] Figure 7 It is a structural schematic diagram of the partition plate of the present invention;

[0029] In the figure: 1. filter press body; 2. filter plate; 3. feed cylinder; 4. driving cylinder; 5. first driven cylinder; 6. driving cylinder; 7. partition plate; 8. second driven cylinder; 9. extrusion cylinder; 10. extrusion rod; 11. driving block; 12. hidden groove; 14. hemispherical driven block; 15. spring; 16. first channel; 17. second channel; 18. elastic cylinder; 19. first annular groove; 20. limit driven block; 21. second annular groove; 22. elastic block; 23. spiral groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] In the prior art, after the filter plate of the plate-and-frame filter press completes the filtering operation on the material, a certain amount of material usually remains in its feed channel. This not only causes waste of material, but also may affect the smoothness of the subsequent feed channel due to the drying of the residual material, reduce the feeding efficiency, and even cause equipment failure and increase equipment maintenance costs. Therefore, it is urgent to develop an effective technical means to solve the problem of material residue in the feed channel of the plate-and-frame filter press, and this embodiment is specially invented to solve the above problem.

[0033] See also Figures 1 to 7 The present invention provides a technical solution: an apparatus for producing a desulfurizing agent using waste acid, comprising a filter press body 1 and a filter plate 2, wherein the filter press body 1 and the filter plate 2 are both existing technologies and are therefore not described in detail. A feed cylinder 3 is fixedly installed at the center of the filter plate 2, and a partition plate 7 is fixedly connected to the middle of the inner circumference of the feed cylinder 3, and a rotatable driving cylinder 4 is arranged on both the front and rear sides of the partition plate 7, wherein one end of the driving cylinder 4 close to the partition plate 7 is rotatably connected to the partition plate 7, and a second driven cylinder 8 and a first driven cylinder 5 are arranged on the inner circumference of the driving cylinder 4, which can rotate with the driving cylinder 4 or can rotate by inertia, wherein a ring-shaped stabilizing protrusion is integrally formed on the side of the first driven cylinder 5 that abuts against the second driven cylinder 8, and the ring-shaped stabilizing protrusion is clamped in the second driven cylinder 8, and the inner circumference of the second driven cylinder 8 and the first driven cylinder 5 are in the shape of a trumpet with a large outer diameter and a small inner diameter, and a plurality of driving cylinders 6 that can provide power to the driving cylinder 4 are arranged on both the front and rear sides of the feed cylinder 3;

[0034] During the operation of the filter press body 1 , the filter plates 2 move toward each other. During this process, the drive cylinders 6 on the adjacent filter plates 2 collide with each other, thereby causing the drive cylinders 6 to move toward the inside of the feed barrel 3 .

[0035] See also Figures 2 to 4 A plurality of rectangular limiting grooves corresponding to the plurality of driving cylinders 6 are provided on the inner circumference of the feed barrel 3, a driving block 11 is slidably connected in the rectangular limiting groove, and one end of the driving cylinder 6 abuts against the corresponding driving block 11, and a spring 15 having one end arranged on the partition plate 7 is fixedly connected to the side of the driving block 11 away from the driving cylinder 6;

[0036] When the driving cylinder 6 moves into the feeding barrel 3, it pushes the driving block 11 to slide in the rectangular limit groove. The sliding of the driving block 11 causes the spring 15 to contract under pressure. When the external force acting on the driving cylinder 6 disappears, the spring 15 releases its elastic potential energy and pushes the driving block 11 to return to its initial position. At the same time, the driving block 11 pushes the driving cylinder 6 outward to return to its initial state.

[0037] See also Figures 2 to 7 The outer circumferential surface of the driving cylinder 4 is provided with a spiral groove 23, and the driving block 11 is fixedly connected to a side close to the driving cylinder 4 with one end of the hemispherical driven block 14 being slidably connected to the spiral groove 23;

[0038] When the driving cylinder 6 pushes the driving block 11 to slide in the rectangular limiting groove, the driving block 11 will drive the hemispherical driven block 14 to move synchronously. Due to the setting of the spiral groove 23, the hemispherical driven block 14 will drive the driving cylinder 4 to rotate on the partition plate 7 during the movement.

[0039] See also Figures 3 to 6 The outer circumferences of the first driven cylinder 5 and the second driven cylinder 8 are fixedly connected to a limit driven block 20 whose end is slidably connected to the driving cylinder 4. The inner circumference of the driving cylinder 4 is provided with a second annular groove 21 adapted to the limit driven block 20. The inner side surface of the second annular groove 21 is evenly provided with a plurality of elastic blocks 22 that can abut against the limit driven block 20 on one side.

[0040] When the driving cylinder 4 starts to rotate, it will drive the elastic block 22 connected to it to rotate synchronously. When the elastic block 22 hits the side of the limit driven block 20, a tangential force will be generated, which will cause the first driven cylinder 5 to rotate;

[0041] When the driving cylinder 6 moves into the feeding tube 3, Figure 5From a certain view, the driving cylinder 4 will rotate counterclockwise. During the counterclockwise rotation of the driving cylinder 4, the elastic clamping block 22 will abut against the surface of the limiting driven block 20 which is not fully spherical. According to the principle of force decomposition and synthesis, at this time, the force exerted by the elastic clamping block 22 on the limiting driven block 20 will decompose into a component force that promotes the counterclockwise rotation of the first driven cylinder 5, thereby driving the first driven cylinder 5 to rotate counterclockwise;

[0042] When the driving cylinder 6 is pushed outwards by the driving block 11, from Figure 5 a certain view, the driving cylinder 4 will rotate clockwise. This is because the reverse movement of the driving block 11 changes the force application direction of the transmission. At this time, the elastic clamping block 22 will abut against the side surface of the limiting driven block 20. Similarly, according to the principle of force decomposition and synthesis, the force exerted by the elastic clamping block 22 will cause the first driven cylinder 5 to rotate in the clockwise direction;

[0043] At the same time, because the spring 15 has a relatively large elastic coefficient. Based on Hooke's law, when the spring 15 restores its deformation, it will release a strong elastic force. This strong elastic force acts on the driving cylinder 4, providing sufficient power for its clockwise rotation, enabling the driving cylinder 4 to reach a relatively high speed during the clockwise rotation. Due to the close transmission connection between the driving cylinder 4 and the first driven cylinder 5, the rapid rotation of the driving cylinder 4 will drive the first driven cylinder 5 to rotate rapidly through a specific mechanical structure. Similarly, the second driven cylinder 8 installed on the driving cylinder 4 will also make a rapid rotation synchronously with the first driven cylinder 5 due to the same mechanical transmission principle.

[0044] Therefore, when there is material residue in the feed cylinder 3, the high-speed rotation of the first driven cylinder 5 and the second driven cylinder 8 plays a key role. According to the principle of centrifugal force in circular motion, under high-speed rotation, the centrifugal force exerted on the material is much greater than its adhesion force to the inner wall of the feed cylinder 3. Under the action of this physical mechanism, the residual material will be forcefully thrown away from the feed cylinder 3, thereby greatly improving the self-cleaning performance of the feed cylinder 3, effectively reducing the obstruction of the material residue to the subsequent feeding process, ensuring the efficient and stable progress of the feeding process, and significantly improving the overall working efficiency of the filter press body 1.

[0045] Embodiment 2

[0046] In the above embodiment, by means of the rotation of the first driven cylinder 5 and the second driven cylinder 8, according to the principle of centrifugal force in circular motion, the residual material in the feed cylinder 3 can be thrown away. When the first driven cylinder 5 and the second driven cylinder 8 rotate at high speed, the centrifugal force generated causes the material to overcome the adhesion force to the cylinder wall and thus be thrown out.

[0047] However, during the actual operation of the filter press body 1, under the action of a strong pressure, some of the materials will adhere to the inner circumferential surface of the first driven cylinder 5 or the second driven cylinder 8. At the same time, the viscosity of the materials themselves also makes them more likely to adhere to the walls of the first driven cylinder 5 or the second driven cylinder 8 under pressure. To effectively solve this problem, this embodiment is specifically developed.

[0048] Please refer to Figures 3 to 6 , on the basis of the above embodiment, the technical solution adopted includes that one end of the inner circumferential surface of the second driven cylinder 8 close to the partition plate 7 is fixedly connected with an elastic cylinder 18, and one end of the elastic cylinder 18 far from the second driven cylinder 8 is fixedly connected to the outermost end of the inner circumferential surface of the first driven cylinder 5;

[0049] A plurality of hidden grooves 12 are evenly formed on the inner circumferential surface of the second annular groove 21, and one end of the elastic clamping block 22 far from the first driven cylinder 5 is fixedly connected in the hidden groove 12;

[0050] When the driving cylinder 4 rotates and drives the first driven cylinder 5 and the second driven cylinder 8 to rotate together, according to the principle of rotational dynamics, the moment of inertia is related to the mass distribution of the object and the axis of rotation. The self-gravity of the second driven cylinder 8 is greater than that of the first driven cylinder 5. In the case where factors such as shape and size are similar, it can be approximately considered that the moment of inertia of the second driven cylinder 8 is relatively larger. During the process of the driving cylinder 4 transmitting power to the first driven cylinder 5 and the second driven cylinder 8, due to the larger moment of inertia of the second driven cylinder 8, under the action of the same resultant external torque, its angular acceleration will be smaller, while the moment of inertia of the first driven cylinder 5 is smaller, and under the action of the same torque, the angular acceleration is larger;

[0051] When the spring 15 restores its deformation, the elastic force generated by it is converted into the torque that makes the driving cylinder 4 rotate. This larger torque is transmitted to the first driven cylinder 5 and the second driven cylinder 8. Due to the different moments of inertia of the two, after the driving cylinder 4 stops rotating, at first, the rotational speeds of the first driven cylinder 5 and the second driven cylinder 8 are the same, but as time goes by, the rotational speed of the second driven cylinder 8 should decrease more slowly than that of the first driven cylinder 5. Therefore, there will be a rotational speed difference between the second driven cylinder 8 and the first driven cylinder 5 during the subsequent rotation process;

[0052] This speed difference causes a rotational speed difference at both ends of the elastic cylinder 18 connecting the first driven cylinder 5 and the second driven cylinder 8. Analyzed from the perspective of material mechanics, when the rotational speeds at both ends of the elastic cylinder 18 are different, different deformations will occur in each part of the elastic cylinder 18 itself. Due to the elasticity of the elastic cylinder 18, stress and strain will be generated inside it. Under the action of this non-uniform stress, many irregular creases will appear on the inner circumferential surface of the elastic cylinder 18;

[0053] The appearance of these creases will damage the bonding force between the material adhered to the elastic cylinder 18 and the wall of the elastic cylinder 18. The generation of creases reduces the contact area between the material and the wall of the elastic cylinder 18, and at the same time changes the stress distribution of the material, thereby weakening the bonding force between the material and the wall of the elastic cylinder 18, and the material begins to loosen. Once the material loosens, under the action of the centrifugal force generated by the rotation of the subsequent first driven cylinder 5 and the second driven cylinder 8, the probability of the material being thrown out will be greatly increased.

[0054] At the same time, after the creases are generated, a structure similar to an "air duct" is formed on the inner wall of the elastic cylinder 18 between two adjacent creases. When the elastic cylinder 18 rotates, the air inside the elastic cylinder 18 is driven by the wall of the elastic cylinder 18 to rotate accordingly. Under the influence of the "air duct" formed by the creases, the air flow state changes, generating complex turbulent flows. This turbulent flow phenomenon forms a strong effect similar to "air flow scouring". During this "air flow scouring" process, the material originally adhered to the wall of the elastic cylinder 18 will be impacted by the air flow. The impact force of the air flow effectively weakens the adhesion between the material and the wall of the elastic cylinder 18, helping the material to break away from the wall of the elastic cylinder 18, thereby further greatly increasing the probability of the material being thrown out;

[0055] At the same time, due to the setting of the hemispherical driven block 14 and the spiral groove 23, when the hemispherical driven block 14 moves from one end of the spiral groove 23 to the other end, this process can drive the driving cylinder 4 to rotate. However, once the hemispherical driven block 14 stops moving, the driving cylinder 4 will also stop rotating accordingly. Thanks to the setting of the hidden groove 12, the first driven cylinder 5 and the second driven cylinder 8 will continue to rotate due to inertia. During the continuous rotation of the first driven cylinder 5 and the second driven cylinder 8, the limiting driven block 20 will exert a squeezing effect on the elastic block 22, causing the elastic block 22 to temporarily hide in the hidden groove 12;

[0056] Embodiment Three

[0057] In the above embodiment, although the adhesion between the material and the wall of the elastic cylinder 18 can be effectively reduced to a certain extent. However, in order to further improve the material separation effect and minimize the adhesion between the two to the greatest extent, this embodiment is specifically invented.

[0058] Please refer to Figures 3 to 7 , on the basis of the above embodiment, the technical solution adopted includes that one side of the driving block 11 away from the driving cylinder 6 is fixedly connected with a pressing rod 10. One end of the pressing rod 10 away from the driving block 11 is slidably connected with a pressing cylinder 9. One end of the pressing cylinder 9 away from the pressing rod 10 is fixedly connected to the partition plate 7, and the spring 15 is sleeved on the pressing rod 10 and the pressing cylinder 9. Under the actual operating conditions, the spring 15, the pressing cylinder 9 and the pressing rod 10 always remain in a non-contact state;

[0059] When the driving cylinder 6 moves towards the inside of the feeding cylinder 3, with the action of the driving block 11, the extrusion rod 10 can be pushed to slide into the extrusion cylinder 9.

[0060] First annular grooves 19 are formed on both the front and rear sides of the partition plate 7, and a ring-shaped protrusion protruding from one side of the second driven cylinder 8 abutting against the partition plate 7 is inserted into the first annular groove 19. A sealing ring is provided at the connection between the ring-shaped protrusion and the first annular groove 19, and a plurality of second channels 17 with one ends communicating with the first annular groove 19 are formed on the inner peripheral surface of the second driven cylinder 8. A plurality of first channels 16 with one ends communicating with the extrusion cylinder 9 are formed on the inner side surface of the first annular groove 19. An annular diversion groove is formed on the outer surface of the elastic cylinder 18. The depth of the annular diversion groove is relatively shallow, and its depth is 0.5 mm.

[0061] During the operation of the entire system, the extrusion cylinder 9, the first channels 16, the first annular grooves 19, the second channels 17, and the annular diversion grooves are all filled with water. From the principle of fluid mechanics, water, as a fluid, has good fluidity and incompressibility and can effectively transmit pressure.

[0062] When the extrusion rod 10 moves into the extrusion cylinder 9, according to Pascal's law, the pressure applied to the water in the extrusion rod 10 will be evenly transmitted to all parts connected thereto. At this time, the water in the extrusion rod 10 is squeezed, and the generated pressure pushes the water in the first channels 16, the first annular grooves 19, and the second channels 17 to flow, so that it enters between the elastic cylinder 18 and the first driven cylinder 5 and the second driven cylinder 8. Due to the annular diversion grooves on the outer peripheral surface of the elastic cylinder 18, the water will accumulate in these grooves. According to the principle of elasticity, when the elastic cylinder 18 is subjected to the pressure of water, a deformation similar to expansion will occur on its inner peripheral surface. This is because when an elastic material is subjected to an external force, it will undergo elastic deformation to adapt to the change of external pressure.

[0063] When the extrusion rod 10 moves away from the extrusion cylinder 9, the pressure on the water between the elastic cylinder 18 and the second driven cylinder 8 and the first driven cylinder 5 decreases. According to the natural flow characteristics of the fluid, the water will flow back into the storage space composed of the second channels 17, the first annular grooves 19, and the extrusion cylinder 9, realizing the recycling of water.

[0064] From a microscopic perspective, when water causes the inner peripheral surface of the elastic cylinder 18 to expand, according to the molecular kinetic theory, the intermolecular distance on the inner peripheral surface of the elastic cylinder 18 will increase. At this time, if the material adheres to the inner peripheral surface of the elastic cylinder 18, the adhesion occurs in the state where the intermolecular distance increases. When the elastic cylinder 18 returns to its initial state, the internal elastic force will cause the intermolecular distance to return to the original state. The adhesion force between the material and the inner peripheral surface of the elastic cylinder 18 mainly depends on the intermolecular interaction force. When the intermolecular distance on the inner peripheral surface of the elastic cylinder 18 returns to the initial state, the originally adhered material changes from a state with a larger intermolecular distance to a state with a smaller distance. According to the theory of intermolecular force, the reduction of the intermolecular distance will cause the adhesion force between the material and the inner peripheral surface of the elastic cylinder to be greatly weakened. In this way, the material adhered to the inner peripheral surface of the elastic cylinder 18 is extremely likely to become loose and thus more likely to fall off.

[0065] During the actual operation of the above-mentioned embodiment, a special situation may occur: at the moment when the second driven cylinder 8 and the first driven cylinder 5 stop running, the limit driven block 20 provided on the second driven cylinder 8 crosses an elastic catch 22, while the limit driven block 20 provided on the first driven cylinder 5 fails to cross the corresponding elastic catch 22 because the first driven cylinder 5 has stopped rotating. This situation will cause a deviation in the relative positions of the limit driven blocks 20 on the first driven cylinder 5 and the second driven cylinder 8;

[0066] However, the equipment for producing desulfurizer using waste acid has the ability to automatically correct this deviation. When water enters between the elastic cylinder 18 and the first driven cylinder 5 and the second driven cylinder 8, according to the principle of fluid mechanics, as a medium with fluidity and pressure transmission characteristics, water will act on the elastic cylinder 18 in all directions. Because while water causes the inner peripheral surface of the elastic cylinder 18 to expand, it will also exert a squeezing impact on the front and rear ends of the elastic cylinder 18;

[0067] From a mechanical perspective, since both ends of the elastic cylinder 18 are rigidly connected to the first driven cylinder 5 and the second driven cylinder 8 through a fixed structure, the axial component force generated by the water pressure on the outer peripheral surface of the elastic cylinder 18 cannot cause the elastic cylinder to elongate axially, but is converted into an axial thrust on the first driven cylinder 5 and the second driven cylinder 8 through the contact interface;

[0068] Under the action of this thrust, the limit driven block 20 provided on the first driven cylinder 5 will obtain an additional power. When this power is greater than the frictional force between the limit driven block 20 and the elastic catch 22 and other resistances that hinder its movement, according to Newton's second law, the limit driven block 20 will move and then cross the corresponding elastic catch 22. In this way, it can promote the positions of the limit driven blocks 20 on the second driven cylinder 8 and the first driven cylinder 5 to be realigned, ensuring the stability and accuracy of the system in the stopped state.

[0069] In summary, when the equipment for producing desulfurizer using waste acid is in use, first, the filter press body 1 operates, the filter plates 2 approach each other, the driving cylinder 6 is forced to move into the feed cylinder 3, pushing the driving block 11 and compressing the spring 15. At the same time, the hemispherical driven block 14 moves in the spiral groove 23, driving the active cylinder 4 to rotate. After the active cylinder 4 rotates, through the cooperation of the elastic clamping block 22 and the limiting driven block 20, the first driven cylinder 5 and the second driven cylinder 8 are driven to rotate at high speed, and the residual materials in the feed cylinder 3 are thrown off by centrifugal force to achieve preliminary self-cleaning. When encountering the problem of material adhesion, the elastic cylinder 18 generates creases due to the rotational speed difference between the second driven cylinder 8 and the first driven cylinder 5. The creases destroy the bonding force between the material and the wall of the elastic cylinder 18, and the "air duct" structure formed inside it produces an air flow scouring effect, further weakening the adhesion of the material. When it is necessary to further reduce the adhesion of the material, the driving cylinder 6 moves to push the extrusion rod 10, and the water in the extrusion cylinder 9 is transferred by pressure and enters between the elastic cylinder 18, the first driven cylinder 5 and the second driven cylinder 8, causing the inner peripheral surface of the elastic cylinder 18 to expand, reducing the adhesion force between the material and the cylinder wall from a microscopic level and assisting the material to fall off. Even when the position of the limiting driven block 20 on the first driven cylinder 5 and the second driven cylinder 8 deviates when the system stops, the acting force generated by the water entering between the elastic cylinder 18, the first driven cylinder 5 and the second driven cylinder 8 can automatically correct the deviation, ensuring the stability of the system. The entire equipment forms a complete and efficient solution from the cleaning of the feed channel, the treatment of material adhesion to the guarantee of system stability, strongly promoting the efficient and stable development of the process of producing desulfurizer using waste acid.

[0070] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or position relationships are based on the directions or position relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0071] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0072] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An equipment for producing desulfurizer using waste acid, comprising a filter press body (1) and filter plates (2), characterized in that: A feed cylinder (3) is fixedly installed at the center of the filter plate (2), and a partition plate (7) is fixedly connected to the middle of the inner peripheral surface of the feed cylinder (3). On both the front and rear sides of the partition plate (7), rotatable driving cylinders (4) are provided. On the inner peripheral surface of the driving cylinder (4), a second driven cylinder (8) and a first driven cylinder (5) are provided, which can rotate synchronously with the driving cylinder (4) or continue to rotate by inertia after the driving cylinder (4) stops. The shape formed by the inner peripheral surfaces of the second driven cylinder (8) and the first driven cylinder (5) is a trumpet shape with a large outer diameter and a small inner diameter. On both the front and rear sides of the feed cylinder (3), a plurality of driving cylinders (6) capable of providing power for the rotation of the driving cylinder (4) are provided.

2. The equipment for producing desulfurizer by using waste acid according to claim 1, characterized in that: A plurality of rectangular limiting grooves corresponding to the plurality of driving cylinders (6) one by one are formed on the inner peripheral surface of the feed cylinder (3). A driving block (11) is slidably connected in the rectangular limiting groove, and one end of the driving cylinder (6) abuts against the corresponding driving block (11). A spring (15) with one end disposed on the partition plate (7) is fixedly connected to the side of the driving block (11) away from the driving cylinder (6).

3. The equipment for producing desulfurizer using waste acid according to claim 2, wherein: A spiral groove (23) is formed on the outer peripheral surface of the driving cylinder (4). A hemispherical driven block (14) with one end slidably connected in the spiral groove (23) is fixedly connected to the side of the driving block (11) close to the driving cylinder (4).

4. An apparatus for producing a desulfurizer using waste acid according to claim 3, characterized in that: Limiting driven blocks (20) with one end slidably connected in the driving cylinder (4) are fixedly connected to the outer peripheral surfaces of the first driven cylinder (5) and the second driven cylinder (8). A second annular groove (21) adapted to the limiting driven block (20) is formed on the inner peripheral surface of the driving cylinder (4). A plurality of elastic clamping blocks (22) with one side capable of abutting against the limiting driven block (20) are uniformly arranged on the inner side surface of the second annular groove (21).

5. An apparatus for producing a desulfurizer using waste acid according to claim 4, characterized in that: An elastic cylinder (18) is fixedly connected to one end of the inner peripheral surface of the second driven cylinder (8) close to the partition plate (7), and the end of the elastic cylinder (18) away from the second driven cylinder (8) is fixedly connected to the outermost end of the inner peripheral surface of the first driven cylinder (5).

6. The equipment for producing desulfurizer using waste acid according to claim 5, characterized in that: A plurality of hidden grooves (12) are uniformly formed on the inner peripheral surface of the second annular groove (21). The end of the elastic clamping block (22) away from the first driven cylinder (5) is fixedly connected in the hidden groove (12).

7. The equipment for producing desulfurizer using waste acid according to claim 6, characterized in that: An extrusion rod (10) is fixedly connected to the side of the driving block (11) away from the driving cylinder (6). An extrusion cylinder (9) is slidably connected to the end of the extrusion rod (10) away from the driving block (11). The end of the extrusion cylinder (9) away from the extrusion rod (10) is fixedly connected to the partition plate (7), and the spring (15) is sleeved on the extrusion rod (10) and the extrusion cylinder (9).

8. An apparatus for producing a desulfurizer using waste acid according to claim 7, characterized in that: Both the front and rear sides of the partition plate (7) are provided with first annular grooves (19), and one side of the second driven cylinder (8) that abuts against the partition plate (7) protrudes with an annular protrusion whose one end is inserted into the first annular groove (19). A plurality of second channels (17) whose one ends are all communicated with the first annular groove (19) are provided on the inner circumferential surface of the second driven cylinder (8), and a plurality of first channels (16) whose one ends are all communicated with the extrusion cylinder (9) are provided on the inner side surface of the first annular groove (19).

9. An apparatus for producing a desulfurizing agent using waste acid according to claim 8, characterized in that: An annular diversion groove is provided on the outer surface of the elastic cylinder (18).

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