Extrusion molding equipment for hydroxy iron series desulfurization catalyst

Abstract

A hydroxy iron series desulfurization catalyst extrusion molding device relates to the technical field of plastic material molding, and comprises a bottom mounting rack which is a square frame, and a two-stage extrusion molding unit and a conveying transfer unit are respectively arranged on the bottom mounting rack; the two-stage extrusion molding unit comprises a first extrusion box, and two longitudinal symmetrical transverse extrusion rollers are rotationally arranged in the first extrusion box; the two-stage extrusion molding unit further comprises a second extrusion box, and two longitudinal extrusion rollers which are transversely symmetrical are rotationally arranged in the second extrusion box; a horizontal extrusion feeding pipe is fixed to the transverse outer wall of one side of the second extrusion box, a quick-release clamping sleeve is fixed to the tail end of the extrusion feeding pipe, and an extrusion die head is fixed to the end of the quick-release clamping sleeve. The problems that raw materials are not mixed uniformly, pug contains bubbles, production is discontinuous, single-stage extrusion compactness is insufficient and the like when extrusion molding equipment in the traditional technology is used for processing the hydroxyl iron series desulfurization catalyst are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic material forming, in particular to an extrusion forming equipment for hydroxyl iron-based desulfurization catalyst. BACKGROUND

[0002] In the industrial production of hydroxyl iron-based desulfurization catalyst, extrusion forming is a key process that determines the mechanical strength, pore structure and activity of the final catalyst. However, the traditional forming equipment and process have a series of inherent defects, which seriously restrict the product quality and production efficiency.

[0003] Firstly, in the raw material pretreatment stage, the traditional mixing equipment is difficult to achieve uniform infiltration and dispersion of solid-liquid components. Due to the characteristics of raw materials such as hydroxyl iron, insufficient mixing can easily lead to local agglomeration or composition segregation, and a large number of air bubbles will be entrained in the subsequent stirring. These factors make the mud texture uneven, with internal defects, which ultimately leads to low strength and easy cracking of the catalyst strip after extrusion, and uneven distribution of reaction activity in the desulfurization process, affecting the overall desulfurization efficiency.

[0004] Secondly, the continuity of the traditional production process is poor, and the connection between units is not smooth. After mixing and kneading, the mud often needs to be manually transported or aged for a long time, which not only leads to low production efficiency, but also easily causes water loss or pollution of the mud due to environmental exposure. The mud after aging lacks a stable and controllable mechanism in the conveying process before entering the extruder, which is easy to bridge or block in the silo, disrupting the continuity and stability of production, and difficult to meet the requirements of rhythm and capacity for large-scale industrial production.

[0005] Thirdly, the existing extrusion equipment has a single function and lacks fine control ability. For catalyst mud, which has both plasticity and elasticity, single-stage extrusion often lacks pressure or kneading, which cannot effectively eliminate the loose structure of the aged mud, and it is difficult to establish uniform and stable extrusion pressure. This leads to the fact that the extruded strip is not dense enough, the surface is rough, and even the strip is broken or deformed. At the same time, the equipment cannot flexibly adjust the mixing intensity, feeding rate, extrusion pressure and other key parameters, making it difficult to adapt to the process requirements of different formulations or product specifications, limiting the flexibility of the production line and product diversity.

[0006] In addition, the traditional production line has high energy consumption and frequent maintenance. Material transfer relies heavily on power transmission, and the gravitational advantage is not fully utilized; the sealing between each equipment unit is poor, leading to material leakage and cross-contamination, which not only increases the burden of cleaning and maintenance, but also causes dust problems in the production environment. The operation process relies heavily on manual labor, which poses a certain safety risk, and the product quality is greatly affected by human factors.

[0007] In summary, the existing technology has obvious inconvenience and defects in actual use, so it needs to be improved. SUMMARY

[0008] In view of the defects in the prior art, the present application provides a hydroxyl iron desulfurization catalyst extrusion molding equipment to solve the problems of uneven mixing of raw materials, bubble-containing clay, discontinuous production, and insufficient single-stage extrusion density when the traditional extrusion molding equipment is used for hydroxyl iron desulfurization catalyst processing.

[0009] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A hydroxyl iron desulfurization catalyst extrusion molding equipment, comprising a bottom mounting frame, wherein the bottom mounting frame is a square frame, and a two-stage extrusion molding unit and a conveying transfer unit are respectively arranged on the bottom mounting frame.

[0010] As an optimized scheme, the two-stage extrusion molding unit comprises a first extrusion box, and two longitudinally symmetrical transverse extrusion rollers are rotatably arranged in the first extrusion box.

[0011] As an optimized scheme, the two-stage extrusion molding unit further comprises a second extrusion box, and two transversely symmetrical longitudinal extrusion rollers are rotatably arranged in the second extrusion box.

[0012] As an optimized scheme, a horizontal extrusion feeding pipe is fixed on one side of the lateral outer wall of the second extrusion box, a quick-release sleeve is fixed at the end of the extrusion feeding pipe, and an extrusion die head is fixed at the end of the quick-release sleeve.

[0013] As an optimized scheme, the conveying transfer unit comprises a clay lifting box, the clay lifting box is arranged between the first extrusion box and the second extrusion box, two upwardly and downwardly symmetrical lifting rollers are rotatably arranged in the clay lifting box, a circulating rolling lifting belt is sleeved between the two lifting rollers, a plurality of lifting baffles are fixed on the outer surface of the lifting belt at equal intervals, and the ends of the lifting baffles are arranged close to the inner side wall of the clay lifting box.

[0014] As an optimized scheme, a clay intermediate storage box is arranged below the first extrusion box, the clay intermediate storage box is arranged in communication with the first extrusion box, a horizontal conveying pipe is fixed on the lateral outer wall of the clay intermediate storage box, and the end of the horizontal conveying pipe is fixedly connected to one side of the lateral outer wall of the clay lifting box.

[0015] As an optimized scheme, a square opening sliding pipe is fixed on the other side of the lateral outer wall of the clay lifting box, and the end of the square opening sliding pipe is fixedly connected to the upper end of the second extrusion box.

[0016] As an optimized scheme, the bottom mounting frame is further provided with a stirring and kneading unit, a square integrated electric control box is fixed on one side of the upper surface of the bottom mounting frame, the stirring and kneading unit comprises a stirring and kneading box, the stirring and kneading box is a square box with an open upper end and an arc lower end, and a stable support plate is welded on each longitudinal outer wall of the stirring and kneading box, and the lower end of each stable support plate is fixed on the upper surface of the integrated electric control box.

[0017] As an optimized scheme, an extension support frame is welded on the transverse end face of the side of the bottom mounting frame close to the integrated electric control box, the extension support frame is a C-shaped frame with a transverse opening, a horizontal motor mounting plate is welded on the upper end of the extension support frame, a stirring driving motor is fixed on the upper surface of the motor mounting plate, the stirring driving motor is arranged on the transverse side of the stirring and kneading box, and the output shaft of the stirring driving motor penetrates through the side wall of the stirring and kneading box and extends into the stirring and kneading box.

[0018] As an optimized scheme, a transversely extending stirring rotating shaft is rotatably arranged in the stirring and kneading box, one end of the stirring rotating shaft is rotatably supported on the transverse inner wall of the stirring and kneading box, and the other end of the stirring rotating shaft is fixedly connected with the output shaft of the stirring driving motor.

[0019] As an optimized scheme, two Z-shaped stirring paddles are welded on the stirring rotating shaft, and the two Z-shaped stirring paddles are arranged perpendicularly at an angle of 90°.

[0020] As an optimized scheme, a horizontal cover plate is fixed at the open upper end of the stirring and kneading box, and a vacuum pump connected with the stirring and kneading box is fixed on one side of the upper surface of the horizontal cover plate.

[0021] As an optimized scheme, a temperature control jacket is arranged in the longitudinal wall of the stirring and kneading box, a plurality of temperature adjusting pipes extending transversely are fixed in the temperature control jacket, and a temperature control module connected with the temperature adjusting pipes is fixed on the transverse outer wall of the stirring and kneading box.

[0022] As an optimized scheme, the bottom mounting frame is further provided with a feeding and premixing unit, the feeding and premixing unit comprises a premixing bin, the premixing bin is arranged on one side above the horizontal cover plate, a blanking cone is welded on the lower end of the premixing bin, a first blanking pipe is welded on the lower end of the blanking cone, the lower end of the first blanking pipe is fixed on the horizontal cover plate and communicates with the stirring and kneading box, and a blanking control valve is arranged in the first blanking pipe.

[0023] As an optimized solution, a detachable sealing cover is fixed at the upper opening of the premixing chamber. A mixing drive motor is fixed in the middle of the upper surface of the sealing cover. The output shaft of the mixing drive motor passes downward through the sealing cover and is fixed with a rotating column. A square connecting seat is fixed on the outer peripheral wall of the rotating column near its lower end. An electric telescopic cylinder is fixed on each side end face of the square connecting seat. An L-shaped mixing paddle is fixed at the telescopic end of each electric telescopic cylinder.

[0024] As an optimized solution, a material distribution partition is fixed on the inner peripheral wall near the lower end of the premixing chamber. The material distribution partition has several centrally symmetrical discharge ports. A rotary drive motor is fixed in the middle of the upper surface of the material distribution partition. A protective cover is provided on the outside of the rotary drive motor. The lower end of the protective cover is welded to the material distribution partition.

[0025] As an optimized solution, the output shaft of the rotary drive motor passes downward through the material distribution partition and is fixed with a lifting telescopic cylinder. The lower telescopic end of the lifting telescopic cylinder is fixed with a horizontal lifting support plate. Several centrally symmetrical supplementary filling blocks are fixed on the upper surface of the lifting support plate, and the supplementary filling blocks are set one-to-one with the material discharge port.

[0026] As an optimized solution, a feed pipe is fixed on each longitudinal outer wall near the upper opening of the premixing chamber. The feed pipe is connected to the premixing chamber, and each feed pipe is equipped with a feed check valve.

[0027] As an optimized solution, an annular spray pipe is fixed on the inner top surface of the sealing cover, and several centrally symmetrical atomizing nozzles are fixed on the lower surface of the spray pipe. A water supply pump connected to the spray pipe and supplying water is fixed on the transverse outer wall of the premixing chamber.

[0028] As an optimized solution, the upper surface of the integrated electrical control box is welded with a U-shaped support frame with the opening facing downwards, and the premixing chamber is fixedly mounted on the U-shaped support frame.

[0029] As an optimized solution, a transfer conveying pipe is fixed on the transverse outer wall of the mixing and kneading box near the lower end, and the transfer conveying pipe is connected to the mixing and kneading box.

[0030] As an optimized solution, the bottom mounting frame is also equipped with a mud aging unit, which includes a mud aging box. The mud aging box is a horizontally arranged square box. A vertical support frame is provided below the mud aging box. The vertical support frame is a U-shaped frame with the opening facing downwards. The vertical support frame is welded to the longitudinal inner wall of the bottom mounting frame, and the mud aging box is fixed to the upper surface of the vertical support frame.

[0031] As an optimization, the end of the transfer pipe is fixedly connected to the lateral outer wall of the clay aging box, a first conveying motor is fixed on the other lateral outer wall of the clay aging box, the output shaft of the first conveying motor penetrates through the side wall of the clay aging box and is fixed with a first conveying auger, and the end of the first conveying auger extends to the initial end opening of the transfer pipe.

[0032] As an optimization, a longitudinal pushing plate is telescopically arranged on each longitudinal inner wall of the clay aging box, a discharge port is formed in the middle of the inner bottom surface of the clay aging box, a vertical discharge pipe is arranged outside the discharge port, the upper end of the vertical discharge pipe is welded to the outer bottom surface of the clay aging box, and a discharge control valve is arranged in the vertical discharge pipe.

[0033] As an optimization, a horizontal transfer pipe is welded to the lower end of the vertical discharge pipe, one end of the transfer pipe is closed and the other end is open, a second conveying motor is fixed to the closed end surface of the transfer pipe, and the output shaft of the second conveying motor extends into the transfer pipe and is fixed with a horizontal second conveying auger.

[0034] As an optimization, a horizontal support plate is fixedly welded between the opposite longitudinal inner walls of the bottom mounting frame, the first extrusion box is fixed to the upper surface of the horizontal support plate, and the first extrusion box is an inverted and completely closed U-shaped box.

[0035] As an optimization, the open end of the transfer pipe is fixedly connected to the lateral side wall of the first extrusion box.

[0036] As an optimization, the two ends of the lateral extrusion roller are respectively rotatably mounted on the lateral inner walls of the first extrusion box, two longitudinally symmetrical extrusion drive motors are fixed on the lateral outer walls of the first extrusion box, and the output shafts of the extrusion drive motors penetrate through the side walls of the first extrusion box and are fixed to the lateral side end surfaces of the corresponding lateral extrusion rollers.

[0037] As an optimization, a clay guide block is fixed on each longitudinal inner wall of the first extrusion box, and the clay guide block is used to collect the clay fed through the transfer pipe between the two lateral extrusion rollers.

[0038] As an optimization, the clay storage tank is fixed to the lower surface of the horizontal support plate, and a clay transfer port is formed in the middle of the inner bottom surface of the first extrusion box, the clay transfer port penetrates through the horizontal support plate downward and communicates with the clay storage tank.

[0039] As an optimization, the other side of the lateral wall of the mud storage tank is fixed with a third conveying motor, the output shaft of the third conveying motor penetrates through the mud storage tank and is fixed with a third conveying auger, and the end of the third conveying auger extends into the horizontal conveying pipe.

[0040] As an optimization, the lower end of the second extrusion tank is fixed with a horizontal positioning plate, and the longitudinal ends of the horizontal positioning plate are respectively welded on the longitudinal inner walls of the bottom mounting frame.

[0041] As an optimization, the second extrusion tank is a closed inverted U-shaped tank, the two ends of the longitudinal extrusion roller are respectively rotatably installed on the longitudinal inner walls of the second extrusion tank, two longitudinally symmetrical secondary extrusion motors are fixed on the lateral walls of the second extrusion tank, and the output shafts of the secondary extrusion motors penetrate through the lateral walls of the second extrusion tank and are fixed to the longitudinal side end faces of the corresponding longitudinal extrusion rollers.

[0042] As an optimization, the other side of the lateral wall of the second extrusion tank is fixed with a fourth conveying motor, the output shaft of the fourth conveying motor penetrates through the lateral wall of the second extrusion tank and is fixed with a fourth conveying auger, and the end of the fourth conveying auger extends into the extrusion feeding pipe.

[0043] As an optimization, each longitudinal inner wall of the second extrusion tank is respectively provided with a telescopic concentrated pushing plate.

[0044] As an optimization, the lower end of the mud lifting tank is fixed with a support plate, and the two ends of the support plate are respectively fixed on the longitudinal inner walls of the bottom mounting frame.

[0045] As an optimization, two step motors are respectively fixed on the longitudinal side walls of the mud lifting tank corresponding to the two lifting rollers, the output shafts of the step motors penetrate through the lateral walls of the mud lifting tank and are fixed to the side end faces of the lifting rollers.

[0046] As an optimization, the upper surface of the rightmost end of the bottom mounting frame is fixed with a strip limiting frame, a tool holder is slidably arranged on the strip limiting frame, the tool holder is driven by a threaded screw rod, and a strip cutter is fixed on the lower end of the tool holder.

[0047] As an optimization, the conveying transfer unit further comprises two longitudinally symmetrical conveying mounting frames, the conveying mounting frames are open-down U-shaped frames and are arranged across the bottom mounting frame, two conveying support rollers are rotatably installed on the lateral ends of the two conveying mounting frames, and a conveying belt is rotatably sleeved between the two conveying support rollers, the conveying belt is arranged below the extrusion die head and the strip cutter.

[0048] As an optimized solution, the transverse side of the bottom mounting frame is provided with a drying air box, and the middle part of the drying air box is provided with an opening, and the conveying belt passes through the middle opening of the drying air box and extends transversely.

[0049] Compared with the prior art, the beneficial effects of the present application are: 1. The uniformity of raw material mixing is greatly improved, laying a foundation for high-quality forming.

[0050] The pre-mixed stage of the feed realizes the full integration of the raw materials through diversified design, specifically: After the solid raw materials are accurately fed through the feeding pipe, the atomizing nozzle uniformly sprays water, and the L-shaped mixing paddle with adjustable extension range rotates to stir, which can quickly form a preliminary uniform system of solid-liquid raw materials; the drop port of the material distribution partition cooperates with the supplementary block to control the falling speed and amount of raw materials, avoid local accumulation leading to uneven mixing, and provide uniform texture pre-mixed material for the subsequent kneading process.

[0051] 2. The texture of the clay is optimized, and the forming defects are reduced.

[0052] The stirring and kneading link solves the common problems in clay mixing, specifically: When the Z-shaped stirring paddle arranged vertically at 90° rotates, it can form high-strength shearing and kneading effects on the pre-mixed material, making the internal structure of the clay more compact; the vacuum pump removes air bubbles in real time to avoid defects such as pores and cracks after forming; the temperature control jacket and temperature regulating pipe accurately control the temperature in the box to ensure that the clay forms a stable texture in a suitable environment and is not easily deformed during subsequent extrusion.

[0053] 3. Double-stage extrusion design, forming precision and density double-standard.

[0054] The double-stage extrusion structure can realize the gradual densification of the clay, specifically: The first-stage transverse extrusion roller preliminarily compresses the loose clay into a dense clay plug, eliminating internal voids; the second-stage longitudinal extrusion roller further refines the kneading, assisted by the concentrated push plate, to establish a uniform and stable high-pressure environment, greatly improving the density of the clay; through two compressions by the transverse and longitudinal extrusion rollers, the density and compactness of the clay are gradually improved, the loose structure is eliminated, and the extruded clay strip has a uniform cross-section and stable mechanical strength, reducing crack or deformation defects; the extrusion die head cooperates with the quick-release collar to quickly replace the die to adapt to different specifications of products.

[0055] 4. Full-process automatic and coherent operation, significantly improving production efficiency.

[0056] The units of the equipment seamlessly connect to realize integrated production from raw material feeding to finished product solidification, specifically: The premixing, kneading, aging, extruding, strip cutting and drying processes do not need frequent manual intervention, the conveying screw conveyors, lifting belts and material pushing structures work in cooperation, the clay conveying process is avoided from being blocked or accumulated, the integrated electric control box uniformly controls the actions of the motors and valves, the operation is convenient and the running is stable, the manual cost and production cycle are greatly reduced, and the application is suitable for large-scale continuous production. BRIEF DESCRIPTION OF DRAWINGS

[0057] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0058] Figure 1 It is an external overall structure schematic diagram of the present application in the front view direction; Figure 2 It is an external overall structure schematic diagram of the present application in the top view direction; Figure 3 It is an external overall structure schematic diagram of the present application in the right side view direction; Figure 4 It is a three-dimensional structure isometric schematic diagram of the present application; Figure 5 It is an internal structure schematic diagram of the present application along the A-A line; Figure 2 Figure 6 It is an internal structure schematic diagram of the present application along the B-B line; Figure 1 Figure 7 It is an internal structure schematic diagram of the present application along the C-C line; Figure 1 Figure 8 It is an internal structure schematic diagram of the present application along the D-D line; Figure 1 Figure 9 It is an internal structure schematic diagram of the present application along the E-E line; Figure 1 Figure 10 It is an internal structure schematic diagram of the present application along the F-F line; Figure 1 Figure 11 It is a three-dimensional half sectional view of the material distribution partition plate and the lifting mechanism in the present application; Figure 12 It is a planar sectional view of the material distribution partition plate and the lifting mechanism in the present application.

[0059] ​​​​​​In the diagram: 1-Bottom mounting bracket, 2-Integrated electrical control box, 3-Mixing and kneading box, 4-Stabilizing support plate, 5-Extended support frame, 6-Motor mounting plate, 7-Mixing drive motor, 8-Mixing shaft, 9-Z-shaped mixing blade, 10-Horizontal cover plate, 11-Vacuum pump, 12-Temperature control jacket, 13-Temperature regulating pipe, 14-Temperature control module, 15-Premixing chamber, 16-Discharge cone, 17-First discharge pipe, 18-Discharge control valve, 19-Sealing cover plate, 20-Mixing drive motor, 21-Rotating column, 22- 23-Square connecting seat, 24-Electric telescopic cylinder, 25-L-shaped mixing paddle, 26-Distribution partition, 27-Discharge port, 28-Rotation drive motor, 29-Protective cover, 30-Lifting telescopic cylinder, 31-Lifting pallet, 32-Replenishment filler block, 33-Feed pipe, 34-Feed check valve, 35-Spray pipe, 36-Atomizing nozzle, 37-Water pump, 38-U-shaped support frame, 39-Transfer conveying pipe, 40-Sludge aging box, 41-Vertical support frame, 42-Primary conveyor motor, 43-Primary conveyor auger, 44-Longitudinal... 44-Discharge port, 45-Vertical discharge pipe, 46-Discharge control valve, 47-Transfer conveying pipe, 48-Secondary conveying motor, 49-Secondary conveying auger, 50-Horizontal support plate, 51-First extrusion box, 52-Transverse extrusion roller, 53-Extrusion drive motor, 54-Slurry guide block, 55-Slurry storage tank, 56-Slurry transfer port, 57-Horizontal conveying pipe, 58-Third-stage conveying motor, 59-Third-stage conveying auger, 60-Slurry lifting box, 61-Support plate, 62-Lifting roller, 63- 64-Stepper motor, 65-Lifting belt, 66-Lifting baffle, 67-Square-mouth sliding tube, 68-Second extrusion box, 69-Horizontal positioning plate, 70-Longitudinal extrusion roller, 71-Secondary extrusion motor, 72-Extrusion feeding pipe, 73-Four-stage conveyor motor, 74-Four-stage conveyor auger, 75-Concentrated pusher plate, 76-Quick-release sleeve, 77-Extrusion die head, 78-Strip cutting limit frame, 79-Cut knife holder, 80-Strip cutting knife, 81-Conveyor mounting frame, 82-Conveyor support roller, 83-Conveyor belt, 84-Drying air box. Detailed Implementation

[0060] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0061] like Figures 1 to 12 As shown, a hydroxyl iron-based desulfurization catalyst extrusion molding equipment includes a bottom mounting frame 1, which is a square frame. The bottom mounting frame 1 can be adjusted in tilt angle during installation. The bottom mounting frame 1 is respectively equipped with a feeding premixing unit, a mixing and kneading unit, a mud aging unit, a two-stage extrusion molding unit, and a conveying and transfer unit.

[0062] The upper surface of the bottom mounting frame 1 is fixed with a square integrated electric control box 2, and the stirring kneading unit comprises a stirring kneading box 3, which is a square box with an open upper end and an arc-shaped lower end. Each longitudinal outer wall of the stirring kneading box 3 is respectively welded with a stable support plate 4, and the lower end of each stable support plate 4 is respectively fixed on the upper surface of the integrated electric control box 2.

[0063] A horizontal motor mounting plate 6 is welded on the upper end of the extension support frame 5, and the upper surface of the motor mounting plate 6 is fixed with a stirring drive motor 7. The stirring drive motor 7 is arranged on the lateral side of the stirring kneading box 3, and the output shaft of the stirring drive motor 7 extends into the stirring kneading box 3 through the side wall of the stirring kneading box 3.

[0064] A horizontal motor mounting plate 6 is welded on the upper end of the extension support frame 5, and the upper surface of the motor mounting plate 6 is fixed with a stirring drive motor 7. The stirring drive motor 7 is arranged on the lateral side of the stirring kneading box 3, and the output shaft of the stirring drive motor 7 extends into the stirring kneading box 3 through the side wall of the stirring kneading box 3.

[0065] Two Z-shaped stirring paddles 9 are welded on the stirring shaft 8, and the two Z-shaped stirring paddles 9 are arranged vertically at an angle of 90°.

[0066] A horizontal cover plate 10 is fixed on the open upper end of the stirring kneading box 3, and the upper surface of the horizontal cover plate 10 is fixed with a vacuum pump 11 connected with the stirring kneading box 3. The vacuum pump 11 can vacuumize the interior of the stirring kneading box 3 to remove most of the air bubbles entrained in the stirring mud.

[0067] A temperature control jacket 12 is arranged in the longitudinal wall of the stirring kneading box 3, and a plurality of temperature adjusting pipes 13 are fixed in the temperature control jacket 12. A temperature control module 14 connected with the temperature adjusting pipes 13 is fixed on the lateral outer wall of the stirring kneading box 3, and the temperature control module 14 is electrically connected with the integrated electric control box 2. The temperature adjusting pipes 13 are filled with a heat conducting medium to accurately control the temperature of the stirring kneading box 3 within the range of 0-60℃.

[0068] The feeding and premixing unit comprises a premixing bin 15 arranged on the upper side of the horizontal cover plate 10. A feeding cone 16 is welded on the lower end of the premixing bin 15, and a first feeding pipe 17 is welded on the lower end of the feeding cone 16. The lower end of the first feeding pipe 17 is fixed on the horizontal cover plate 10 and is in communication with the stirring kneading box 3. A feeding control valve 18 is arranged in the first feeding pipe 17.

[0069] A detachable sealing cover plate 19 is fixed at the upper end opening of the premixing bin 15, a mixing driving motor 20 is fixed at the middle of the upper surface of the sealing cover plate 19, the output shaft of the mixing driving motor 20 penetrates downward through the sealing cover plate 19 and is fixed with a rotating column 21, a square connecting seat 22 is fixed on the outer peripheral wall near the lower end of the rotating column 21, an electric telescopic cylinder 23 is fixed on each side end surface of the square connecting seat 22, and an L-shaped mixing paddle 24 is fixed at the telescopic end of each electric telescopic cylinder 23.

[0070] A distribution partition plate 25 is fixed on the inner peripheral wall near the lower end of the premixing bin 15, a plurality of center-symmetrical material falling openings 26 are formed in the distribution partition plate 25, a rotating driving motor 27 is fixed at the middle of the upper surface of the distribution partition plate 25, a protective cover 28 is arranged on the outer side of the rotating driving motor 27, and the lower end of the protective cover 28 is welded on the distribution partition plate 25.

[0071] The output shaft of the rotating driving motor 27 penetrates downward through the distribution partition plate 25 and is fixed with a lifting telescopic cylinder 29, a horizontal lifting supporting plate 30 is fixed at the lower telescopic end of the lifting telescopic cylinder 29, a plurality of center-symmetrical supplementary filling blocks 31 are fixed on the upper surface of the lifting supporting plate 30, and the supplementary filling blocks 31 are arranged one by one corresponding to the material falling openings 26.

[0072] A feeding pipe 32 is fixed on each longitudinal outer wall near the upper end opening of the premixing bin 15, the feeding pipe 32 is arranged in communication with the premixing bin 15, and a feeding non-return valve 33 is arranged in each feeding pipe 32.

[0073] An annular spraying pipe 34 is fixed on the inner top surface of the sealing cover plate 19, a plurality of center-symmetrical atomizing nozzles 35 are fixed on the lower surface of the spraying pipe 34, and a water supply pump 36 connected with the spraying pipe 34 for water supply is fixed on the transverse outer wall of the premixing bin 15.

[0074] A U-shaped support frame 37 with the opening facing downward is welded on the upper surface of the integrated electric control box 2, and the premixing bin 15 is fixed and clamped on the U-shaped support frame 37.

[0075] A transfer conveying pipe 38 is fixed on the transverse outer wall near the lower end of the stirring and kneading bin 3, and the transfer conveying pipe 38 is arranged in communication with the stirring and kneading bin 3.

[0076] The clay aging unit comprises a clay aging bin 39, the clay aging bin 39 is a horizontally arranged square bin, a vertical support frame 40 is arranged below the clay aging bin 39, the vertical support frame 40 is a U-shaped frame with the opening facing downward, the vertical support frame 40 is welded on the longitudinal inner wall of the bottom mounting frame 1, and the clay aging bin 39 is fixed on the upper end surface of the vertical support frame 40.

[0077] The end of the transit conveying pipe 38 is fixedly connected to the lateral outer wall of the clay aging box 39, and the other lateral outer wall of the clay aging box 39 is fixedly provided with a primary conveying motor 41, and the output shaft end of the primary conveying motor 41 penetrates through the side wall of the clay aging box 39 and is fixedly provided with a primary conveying auger 42, and the end of the primary conveying auger 42 extends to the initial end opening of the transit conveying pipe 38.

[0078] The longitudinal inner wall of the clay aging box 39 is respectively provided with a longitudinal pushing plate 43 in an extending and retracting mode, and the inner bottom surface of the clay aging box 39 is provided with a discharging port 44 in the middle, and the outer side of the discharging port 44 is provided with a vertical discharging pipe 45, and the upper end of the vertical discharging pipe 45 is welded to the outer bottom surface of the clay aging box 39, and the vertical discharging pipe 45 is provided with a discharging control valve 46.

[0079] The lower end of the vertical discharging pipe 45 is welded with a horizontal transfer conveying pipe 47, and one end of the transfer conveying pipe 47 is closed, and the other end is open, and the closed end surface of the transfer conveying pipe 47 is fixedly provided with a secondary conveying motor 48, and the output shaft end of the secondary conveying motor 48 extends into the transfer conveying pipe 47 and is fixedly provided with a horizontal secondary conveying auger 49.

[0080] The horizontal support plate 50 is fixedly welded between the opposite longitudinal inner walls of the bottom mounting frame 1, and the double-stage extrusion molding unit comprises a first extrusion box 51 fixed to the upper surface of the horizontal support plate 50, and the first extrusion box 51 is an inverted and completely closed U-shaped box, and the open end of the transfer conveying pipe 47 is fixedly connected to the lateral side wall of the first extrusion box 51.

[0081] The first extrusion box 51 is rotatably provided with two longitudinally symmetrical transverse extrusion rollers 52, and the two ends of the transverse extrusion rollers 52 are respectively rotatably installed on the lateral inner walls of the first extrusion box 51.

[0082] The lateral outer wall of the first extrusion box 51 is fixedly provided with two longitudinally symmetrical extrusion drive motors 53, and the output shaft end of the extrusion drive motor 53 penetrates through the side wall of the first extrusion box 51 and is fixed to the lateral side end surface of the corresponding transverse extrusion roller 52.

[0083] The longitudinal inner wall of the first extrusion box 51 is respectively fixedly provided with a clay guide block 54, and the clay guide block 54 can collect the clay sent through the transfer conveying pipe 47 between the two transverse extrusion rollers 52.

[0084] The lower surface of the horizontal support plate 50 is fixedly provided with a clay intermediate storage box 55, and the inner bottom surface of the first extrusion box 51 is provided with a clay transfer port 56 in the middle, and the clay transfer port 56 penetrates downward through the horizontal support plate 50 and is in communication with the clay intermediate storage box 55.

[0085] The horizontal conveying pipe 57 is fixed on the lateral outer wall of the mud storage tank 55, and a three-stage conveying motor 58 is fixed on the other lateral outer wall of the mud storage tank 55. The output shaft of the three-stage conveying motor 58 penetrates the mud storage tank 55 and is fixed with a three-stage conveying auger 59. The end of the three-stage conveying auger 59 extends into the horizontal conveying pipe 57.

[0086] The conveying transfer unit comprises a mud lifting tank 60. The end of the horizontal conveying pipe 57 is fixed to communicate with the lateral side wall of the mud lifting tank 60. The lower end of the mud lifting tank 60 is fixed with a support plate 61. The two ends of the support plate 61 are fixed on the longitudinal inner walls of the bottom mounting frame 1, respectively.

[0087] Two symmetrical lifting rollers 62 are rotatably arranged in the mud lifting tank 60. Two stepping motors 63 are fixed on the longitudinal side walls of the mud lifting tank 60 corresponding to the two lifting rollers 62, respectively. The output shaft of the stepping motor 63 penetrates the side wall of the mud lifting tank 60 and is fixed to the side end face of the lifting roller 62.

[0088] A central control panel is arranged on the longitudinal side wall of the mud lifting tank 60.

[0089] A circulating lifting belt 64 is sleeved between the two lifting rollers 62. The outer surface of the lifting belt 64 is fixed with a plurality of lifting baffles 65 arranged at equal intervals. The end of the lifting baffle 65 is arranged close to the inner side wall of the mud lifting tank 60.

[0090] A square mouth sliding pipe 66 is fixed on the upper part of the other lateral outer wall of the mud lifting tank 60.

[0091] The double-stage extrusion molding unit further comprises a second extrusion tank 67. The lower end of the second extrusion tank 67 is fixed with a horizontal positioning plate 68. The longitudinal two ends of the horizontal positioning plate 68 are welded on the longitudinal inner walls of the bottom mounting frame 1, respectively.

[0092] The second extrusion tank 67 is a closed and inverted U-shaped tank. The end of the square mouth sliding pipe 66 is fixed to communicate with the upper end of the second extrusion tank 67.

[0093] Two transversely symmetrical longitudinal extrusion rollers 69 are rotatably arranged in the second extrusion tank 67. The two ends of the longitudinal extrusion roller 69 are rotatably installed on the longitudinal inner walls of the second extrusion tank 67, respectively.

[0094] Two longitudinally symmetrical secondary extrusion motors 70 are fixed on the lateral outer walls of the second extrusion tank 67. The output shaft of the secondary extrusion motor 70 penetrates the side wall of the second extrusion tank 67 and is fixed to the longitudinal side end face of the corresponding longitudinal extrusion roller 69.

[0095] A horizontal extrusion feeding pipe 71 is fixed on one side transverse outer wall of the second extrusion box 67, and a four-stage conveying motor 72 is fixed on the other side transverse outer wall of the second extrusion box 67, the output shaft end of the four-stage conveying motor 72 penetrates through the side wall of the second extrusion box 67 and is fixed with a four-stage conveying auger 73, and the end of the four-stage conveying auger 73 extends into the extrusion feeding pipe 71.

[0096] A centralized pushing plate 74 is arranged on each longitudinal inner wall of the second extrusion box 67 in an extendable and retractable manner.

[0097] The end of the extrusion feeding pipe 71 is fixed with a quick-release sleeve 75, and the end of the quick-release sleeve 75 is fixed with an extrusion die head 76.

[0098] A cutting limiting frame 77 is fixed on the upper surface of the rightmost end of the bottom mounting frame 1, a cutter seat 78 is arranged on the cutting limiting frame 77 in a sliding manner, the cutter seat 78 is driven by a threaded screw rod, the lower end of the cutter seat 78 is fixed with a cutting knife 79, and the threaded screw rod is in driving connection with a cutting driving motor fixed on the cutting limiting frame 77.

[0099] The conveying transfer unit further comprises two longitudinally symmetrical conveying mounting frames 80, the conveying mounting frames 80 are U-shaped frames with openings facing downwards and are arranged across the bottom mounting frame 1, two conveying support rollers 81 are rotatably mounted on the transverse two ends of the two conveying mounting frames 80, and a conveying belt 82 is rotatably sleeved between the two conveying support rollers 81, and the conveying belt 82 is arranged below the extrusion die head 76 and the cutting knife 79.

[0100] A conveying driving motor connected with the conveying support rollers 81 is fixed on the longitudinal outer wall of the conveying mounting frame 80.

[0101] A drying air box 83 is arranged on one side of the bottom mounting frame 1 in a transverse manner, the drying air box 83 is provided with a middle opening, the conveying belt 82 passes through the middle opening of the drying air box 83 and extends transversely, an air outlet is formed on the inner top surface of the drying air box 83, the air outlet is in communication with a hot air generating device, the drying temperature can be adjusted to 30-80℃, the air speed can be adjusted to 0.5-2m / s, and the uniform drying of the green body is realized.

[0102] Sealing washers are arranged at the connection positions of the first feeding pipe 17, the transfer conveying pipe 38 and the like, so as to prevent material leakage and air entry.

[0103] In use, the device is installed in an inclined manner, and the left side of the bottom mounting frame 1 is raised to a certain height, so as to facilitate the continuous transfer of the material in the subsequent processing process. First, raw material feeding and premixing are performed, and specifically: Various solid raw materials are poured into the premixing bin 15 from the feeding pipe 32, the water feeding pump 36 is started, and an appropriate amount of water is sprayed into the bin through the atomizing nozzles 35 of the spraying pipe 34. The mixed drive motor 20 drives the rotating column 21 and the L-shaped mixing paddle 24 to rotate, and the electric telescopic cylinder 23 can adjust the extension range of the mixing paddle to fully stir the solid-liquid raw materials. After the stirring is completed, the lengthening of the lifting telescopic cylinder 29 is controlled to drive the supplementary filling block 31 to descend, the discharging opening 26 on the discharging partition plate 25 is opened, and the rotating drive motor 27 is started to make the premixed raw materials enter the stirring and kneading box 3 through the discharging cone 16 and the first discharging pipe 17.

[0104] Then, the clay stirring, kneading, impurity removal and temperature control are performed, specifically, The stirring drive motor 7 is started to drive the stirring shaft 8 and the two 90° vertically arranged Z-shaped stirring paddles 9 to rotate, and the premixed raw materials entering the box are subjected to high-strength kneading. At the same time, the vacuum pump 11 is started to extract the air in the stirring and kneading box 3 to remove the air bubbles entrained in the clay. The temperature control module 14 precisely controls the temperature in the box through the temperature adjusting pipe 13 in the temperature control jacket 12 to make the clay form a uniform texture at a suitable temperature, and after the kneading is completed, the clay is sent to the clay aging box 39 through the transfer conveying pipe 38.

[0105] Then, the clay aging and transfer conveying are performed, specifically, The first-stage conveying auger 42 in the clay aging box 39 is driven by the first-stage conveying motor 41 to uniformly push the clay into the box, and after the aging is completed, the aged clay is pushed into the discharging opening 44 by controlling the telescopic movement of the longitudinal pushing plate 43, and then the clay is transferred to the transfer conveying pipe 47 through the vertical discharging pipe 45, and the second-stage conveying auger 49 is driven by the second-stage conveying motor 48 to stably convey the clay to the first extrusion box 51.

[0106] Then, the two-stage extrusion forming process is performed, specifically, The clay guide block 54 in the first extrusion box 51 collects the clay between the two transverse extrusion rollers 52, and the extrusion drive motor 53 drives the transverse extrusion rollers 52 to rotate to perform the first extrusion and shaping on the clay, preliminarily compress the loose clay after aging, and form a dense clay plug; The shaped clay falls into the clay storage box 55 through the clay transfer opening 56, and the third-stage conveying auger 59 is driven by the third-stage conveying motor 58 to send the clay into the clay lifting box 60; The lifting roller 62 is driven by the stepping motor 63 to drive the lifting belt 64 to rotate, and the lifting baffle 65 conveys the clay upward, and then the clay enters the second extrusion box 67 through the square opening sliding pipe 66; The longitudinal extrusion roller 69 in the second extrusion box 67 is driven by the second extrusion motor 70 to perform the second fine extrusion on the clay, and the loose clay is compressed and kneaded again to establish a uniform and stable high pressure; Then the fourth-stage conveying screw 73 pushes the mud material to the extrusion feeding pipe 71, and extrusion molding is realized through the extrusion die head 76.

[0107] Finally, the strip cutting and irradiation curing are performed, specifically: The extrusion molded mud strip falls on the conveying belt 82, the conveying belt 82 is driven to rotate by the conveying support roller 81, and the mud strip is conveyed to below the strip cutting knife 79; The threaded screw drives the cutter seat 78 to slide on the strip cutting limiting frame 77, and the strip cutting knife 79 cuts the mud strip into the blank with a set length; The blank enters the drying air box 83 along with the conveying belt 82, drying and curing are performed, and finally the molding processing of the hydroxyl iron-based desulfurization catalyst is completed.

[0108] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or part or all of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. An extrusion molding equipment for a hydroxyl iron-based desulfurization catalyst, characterized in that: Includes a bottom mounting frame, which is a square frame, and is respectively equipped with a two-stage extrusion molding unit and a conveying and transfer unit; The two-stage extrusion molding unit includes a first extrusion box, inside which two longitudinally symmetrical transverse extrusion rollers are rotatably arranged. The two-stage extrusion molding unit also includes a second extrusion box, in which two transversely symmetrical longitudinal extrusion rollers are rotatably arranged; A horizontal extrusion feed pipe is fixed on one side of the outer wall of the second extrusion box. A quick-release sleeve is fixed at the end of the extrusion feed pipe, and an extrusion die head is fixed at the end of the quick-release sleeve. The conveying and transfer unit includes a mud lifting box, which is located between the first extrusion box and the second extrusion box. Two vertically symmetrical lifting rollers are rotatably installed inside the mud lifting box. A circulating lifting belt is sleeved between the two lifting rollers. Several equally spaced lifting baffles are fixed on the outer surface of the lifting belt. The ends of the lifting baffles are set close to the inner wall of the mud lifting box. Below the first extrusion box is a mud storage tank, which is connected to the first extrusion box. A horizontal conveying pipe is fixed on the transverse outer wall of the mud storage tank, and the end of the horizontal conveying pipe is fixedly connected to the transverse outer wall of the mud lifting box. A square-mouthed sliding tube is fixed to the upper part of the transverse outer wall on the other side of the mud lifting box, and the end of the square-mouthed sliding tube is fixedly connected to the upper end of the second extrusion box.

2. The extrusion molding equipment for a hydroxyl iron-based desulfurization catalyst according to claim 1, characterized in that: The bottom mounting frame is also equipped with a mixing and kneading unit. A square integrated electrical control box is fixed on one side of the upper surface of the bottom mounting frame. The mixing and kneading unit includes a mixing and kneading box, which is a square box with an open top and an arc-shaped bottom. A stabilizing support plate is welded to each longitudinal outer wall of the mixing and kneading box. The lower end of each stabilizing support plate is fixed to the upper surface of the integrated electrical control box. An extended support frame is welded to the transverse end face of the bottom mounting bracket near the integrated electrical control box. The extended support frame is a C-shaped frame with a transverse opening. A horizontal motor mounting plate is welded to the upper end of the extended support frame. A stirring drive motor is fixed to the upper surface of the motor mounting plate. The stirring drive motor is located on the transverse side of the stirring and kneading box. The output shaft of the stirring drive motor passes through the side wall of the stirring and kneading box and extends into its interior. The mixing and kneading box is equipped with a laterally extending mixing shaft. One end of the mixing shaft is rotatably supported on the transverse inner wall of the mixing and kneading box, and the other end is fixedly connected to the end of the output shaft of the mixing drive motor. Two Z-shaped stirring blades are welded onto the stirring shaft, and the two Z-shaped stirring blades are arranged perpendicularly at 90°. A horizontal cover plate is fixed at the upper opening of the mixing and kneading box, and a vacuum pump connected to the mixing and kneading box is fixed on one side of the upper surface of the horizontal cover plate. The mixing and kneading box has a temperature control jacket inside its longitudinal wall, and several horizontally extending temperature regulating pipes are fixed inside the temperature control jacket. A temperature control module connected to the temperature regulating pipes is fixed on the horizontal outer wall of the mixing and kneading box.

3. The extrusion molding equipment for a hydroxyl iron-based desulfurization catalyst according to claim 2, characterized in that: The bottom mounting frame is also equipped with a feeding premixing unit, which includes a premixing chamber located on one side above the horizontal cover plate. A discharge cone is welded to the lower end of the premixing chamber, and a first discharge pipe is welded to the lower end of the discharge cone. The lower end of the first discharge pipe is fixed to the horizontal cover plate and communicates with the mixing and kneading box. A discharge control valve is provided inside the first discharge pipe. A detachable sealing cover is fixed at the upper opening of the premixing chamber. A mixing drive motor is fixed in the middle of the upper surface of the sealing cover. The output shaft of the mixing drive motor passes downward through the sealing cover and is fixed with a rotating column. A square connecting seat is fixed on the outer peripheral wall of the rotating column near the lower end. An electric telescopic cylinder is fixed on each side end face of the square connecting seat. An L-shaped mixing paddle is fixed at the telescopic end of each electric telescopic cylinder. A material distribution partition is fixed on the inner peripheral wall near the lower end of the premixing bin. Several centrally symmetrical material discharge ports are opened on the material distribution partition. A rotary drive motor is fixed in the middle of the upper surface of the material distribution partition. A protective cover is provided on the outside of the rotary drive motor. The lower end of the protective cover is welded to the material distribution partition. The output shaft of the rotary drive motor passes downward through the material distribution partition and is fixed with a lifting telescopic cylinder. The lower telescopic end of the lifting telescopic cylinder is fixed with a horizontal lifting support plate. Several centrally symmetrical supplementary filling blocks are fixed on the upper surface of the lifting support plate. The supplementary filling blocks are set one-to-one with the material drop port. A feed pipe is fixed on each longitudinal outer wall near the upper opening of the premixing chamber. The feed pipe is connected to the premixing chamber, and each feed pipe is equipped with a feed check valve. An annular spray pipe is fixed on the inner top surface of the sealing cover plate, and several centrally symmetrical atomizing nozzles are fixed on the lower surface of the spray pipe. A water supply pump connected to the spray pipe and supplying water is fixed on the transverse outer wall of the premixing chamber. The upper surface of the integrated electrical control box is welded with a U-shaped support frame with the opening facing downwards, and the premixing chamber is fixedly mounted on the U-shaped support frame.

4. The extrusion molding equipment for a hydroxyl iron-based desulfurization catalyst according to claim 2, characterized in that: A transfer conveying pipe is fixed on the transverse outer wall near the lower end of the mixing and kneading box, and the transfer conveying pipe is connected to the mixing and kneading box. The bottom mounting frame is also equipped with a mud aging unit, which includes a mud aging box. The mud aging box is a horizontally arranged square box. A vertical support frame is provided below the mud aging box. The vertical support frame is a U-shaped frame with the opening facing downwards. The vertical support frame is welded to the longitudinal inner wall of the bottom mounting frame. The mud aging box is fixed to the upper surface of the vertical support frame. The end of the transfer conveying pipe is fixedly connected to the transverse outer wall of the mud aging box. A primary conveying motor is fixed on the other transverse outer wall of the mud aging box. The end of the output shaft of the primary conveying motor passes through the side wall of the mud aging box and is fixed with a primary conveying auger. The end of the primary conveying auger extends to the initial opening of the transfer conveying pipe. Each longitudinal inner wall of the mud aging box is provided with a longitudinal pusher plate that can be extended and retracted. A discharge port is opened in the middle of the inner bottom surface of the mud aging box. A vertical discharge pipe is provided on the outside of the discharge port. The upper end of the vertical discharge pipe is welded to the outer bottom surface of the mud aging box. A discharge control valve is provided inside the vertical discharge pipe. The lower end of the vertical discharge pipe is welded with a horizontal transfer conveying pipe. One end of the transfer conveying pipe is closed and the other end is open. A secondary conveying motor is fixed on the closed end face of the transfer conveying pipe. The output shaft of the secondary conveying motor extends into the transfer conveying pipe and is fixed with a horizontal secondary conveying auger.

5. The extrusion molding equipment for a hydroxyl iron-based desulfurization catalyst according to claim 4, characterized in that: A horizontal support plate is fixedly welded between the opposing longitudinal inner walls of the bottom mounting bracket. The first extrusion box is fixed on the upper surface of the horizontal support plate. The first extrusion box is an inverted and completely closed U-shaped box. The open end of the transfer conveying pipe is fixedly connected to the transverse side wall of the first extrusion box; The two ends of the transverse extrusion roller are respectively rotatably mounted on the transverse inner wall of the first extrusion box. Two longitudinally symmetrical extrusion drive motors are fixed on the transverse outer wall of the first extrusion box. The output shaft ends of the extrusion drive motors pass through the side wall of the first extrusion box and are fixed to the transverse side end face of the corresponding transverse extrusion roller. Each longitudinal inner wall of the first extrusion box is fixed with a mud guide block, which is used to collect the mud fed in through the transfer conveying pipe between two transverse extrusion rollers. The mud storage tank is fixed on the lower surface of the horizontal support plate. A mud transfer port is provided in the middle of the inner bottom surface of the first extrusion box. The mud transfer port passes through the horizontal support plate and is connected to the mud storage tank. A three-stage conveying motor is fixed on the other side of the mud storage tank. The output shaft of the three-stage conveying motor passes through the mud storage tank and is fixed with a three-stage conveying auger. The end of the three-stage conveying auger extends into the horizontal conveying pipe.

6. The extrusion molding equipment for a hydroxyl iron-based desulfurization catalyst according to claim 1, characterized in that: A horizontal positioning plate is fixed to the lower end of the second extrusion box, and the two longitudinal ends of the horizontal positioning plate are respectively welded to the longitudinal inner wall of the bottom mounting frame; The second extrusion box is a closed, inverted U-shaped box. The two ends of the longitudinal extrusion roller are respectively rotatably mounted on the longitudinal inner wall of the second extrusion box. Two longitudinally symmetrical secondary extrusion motors are fixed on the transverse outer wall of the second extrusion box. The output shaft ends of the secondary extrusion motors pass through the side wall of the second extrusion box and are fixed to the longitudinal side end face of the corresponding longitudinal extrusion roller. A four-stage conveying motor is fixed on the other side of the transverse outer wall of the second extrusion box. The end of the output shaft of the four-stage conveying motor passes through the side wall of the second extrusion box and is fixed with a four-stage conveying auger. The end of the four-stage conveying auger extends into the extrusion feeding pipe. Each longitudinal inner wall of the second extrusion box is provided with a centralized pusher plate that can extend and retract.

7. The extrusion molding equipment for a hydroxyl iron-based desulfurization catalyst according to claim 1, characterized in that: The lower end of the mud lifting box is fixed with a support plate, and the two ends of the support plate are respectively fixed on the longitudinal inner wall of the bottom mounting frame. Two stepper motors are fixed on the longitudinal side wall of the mud lifting box, corresponding to the two lifting rollers respectively. The output shaft of the stepper motor passes through the side wall of the mud lifting box and is fixed to the side end face of the lifting roller.

8. The extrusion molding equipment for a hydroxyl iron-based desulfurization catalyst according to claim 1, characterized in that: A slicing limit frame is fixed on the upper rightmost surface of the bottom mounting bracket. A cutter holder is slidably mounted on the slicing limit frame. The cutter holder is driven by a screw thread, and a slicing knife is fixed at the lower end of the cutter holder.

9. The extrusion molding equipment for a hydroxyl iron-based desulfurization catalyst according to claim 8, characterized in that: The conveying and transfer unit also includes two longitudinally symmetrical conveying mounting frames. The conveying mounting frames are U-shaped frames with their openings facing downwards and are arranged across the bottom mounting frame. Two conveying support rollers are rotatably mounted at the two transverse ends of the two conveying mounting frames. A conveyor belt is rotatably sleeved between the two conveying support rollers. The conveyor belt is located below the extrusion die head and the cutting blade.

10. The extrusion molding equipment for a hydroxyl iron-based desulfurization catalyst according to claim 9, characterized in that: A drying air box is provided on one side of the bottom mounting frame. The drying air box has an opening in the middle. The conveyor belt passes through the opening in the middle of the drying air box and extends laterally.

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