Emulsion filtering and rolling type recovery equipment

Abstract

The invention relates to the technical field of special chemical production, and particularly discloses emulsion filtering and rolling type recovery equipment which comprises a rack and a filtering and rolling device arranged on the rack, the filtering and rolling device comprises a rolling mechanism, a filtering mechanism, a cleaning mechanism and a recycling mechanism; the rolling mechanism comprises a first driving assembly, a first roller body connected with the first driving assembly in a matched mode and an extrusion matching piece matched with the first roller body, the first driving assembly is used for driving the first roller body to rotate, and the filtering mechanism comprises a porous filtering plate matched with the first roller body; an extrusion channel is formed between the first roller body and the extrusion matching piece or the porous filter plate; the bagged emulsified material subjected to bag breaking by the external bag breaking mechanism is extruded and conveyed in the extrusion channel, so that the emulsified material in the bagged emulsified material is extruded, and the extruded emulsified material enters the recovery mechanism through the porous filter plate; and the cleaning mechanism is used for cleaning emulsified attachments on the working surfaces of the first roller body and the extrusion matching part.

Description

Technical Field

[0001] This invention relates to the field of specialty chemical production technology, and in particular discloses an emulsion filtration and crushing recycling device. Background Technology

[0002] In the production of enema packaging products such as emulsion explosives, a certain number of defective products (NG) are generated. The emulsion inside these packages still needs to be recycled to save costs. Currently, the processing of such materials mostly relies on manual shearing, extrusion, or the use of simple single-stage pressure rollers, which suffers from prominent problems such as low recycling efficiency, incomplete extrusion, and easy residue. Manual operation is labor-intensive and poses safety hazards due to direct contact with the material; while simple mechanical processing is difficult to handle with the presence of aluminum buckles inside the packaging, which can easily damage the equipment or introduce metal impurities. At the same time, the lack of effective online cleaning and solid-liquid separation functions leads to easy equipment blockage, frequent maintenance, and an inability to achieve safe, efficient, and thorough continuous recycling operations. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide an automated processing device for recovering residual emulsion explosives in enema-type packaging.

[0004] To achieve the above objectives, the present invention provides an emulsion filtration and crushing recycling device, comprising a frame and a filtration and crushing device mounted on the frame; the filtration and crushing device includes a crushing mechanism, a filtration mechanism, a cleaning mechanism, and a recycling mechanism; the crushing mechanism is configured to cooperate with an external bag-breaking mechanism to receive the bagged emulsion after the bag is broken, the crushing mechanism includes a first drive assembly, a first roller body connected to the first drive assembly, and an extrusion fitting component that cooperates with the first roller body, the first drive assembly being used to drive the first roller body to rotate, the filtration mechanism including a porous filter plate that cooperates with the first roller body, and an extrusion channel being formed between the first roller body and the extrusion fitting component or the porous filter plate; After being broken open by the external bag-breaking mechanism, the bagged emulsion is squeezed and conveyed in the extrusion channel to squeeze out the emulsion inside the bagged emulsion, and the squeezed emulsion enters the recycling mechanism through the porous filter plate; the cleaning mechanism is used to clean the emulsion adhering on the working surface of the first roller and the extrusion mating parts.

[0005] Furthermore, there are multiple first rollers, which are rotatably mounted on the frame. The rotation axes of the multiple first rollers are in the same plane, and there is an angle between the plane containing the rotation axes of the multiple first rollers and the bearing surface of the recycling mechanism. There are multiple extrusion fittings, and the number of extrusion fittings is the same as the number of first rollers. There are also multiple porous filter plates.

[0006] Furthermore, a relative distance a is provided between the roller surface of the first roller body and the working surface of the first extrusion fitting or the first porous filter plate; a relative distance b is provided between the roller surface of the second roller body and the working surface of the second extrusion fitting or the second porous filter plate; and a relative distance c is provided between the roller surface of the third roller body and the working surface of the third extrusion fitting or the third porous filter plate; wherein the relative distance a > relative distance b > relative distance c.

[0007] Furthermore, the first drive assembly includes a first explosion-proof motor and a first belt drive unit disposed at the output end of the first explosion-proof motor. The first belt drive unit includes two first pulleys and a first drive belt wound between the two first pulleys.

[0008] Furthermore, the rolling mechanism also includes a tensioning assembly mounted on the frame. The tensioning assembly includes a first bracket mounted on the frame, a first guide rod mounted on the first bracket, a second bracket movably sleeved on the first guide rod via a first spring, and a follower wheel rotatably mounted on the second bracket. The follower wheel is used to abut against the first transmission belt and cooperate with it.

[0009] Furthermore, the rolling mechanism also includes an elastic pressure adjusting component for driving the radial adjustment of the first roller body. The elastic pressure adjusting component includes a sliding block, a compression spring, a spring cap, an adjusting screw that cooperates with the spring cap, and a movable pin that cooperates with the compression spring, arranged in sequence. The adjusting screw is spirally mounted on the adjusting block arranged on the frame.

[0010] Furthermore, the extrusion fitting is a second roller rotatably mounted on the frame, and the rolling mechanism also includes a second drive assembly connected to the second roller. The second drive assembly is used to drive the second roller to rotate, and the rotation direction of the second roller is opposite to that of the first roller.

[0011] Furthermore, the second drive assembly includes a second explosion-proof motor and a second belt drive unit disposed at the output end of the second explosion-proof motor; Furthermore, the surfaces of the first roller and / or the second roller are provided with an elastic coating layer.

[0012] Furthermore, the cleaning mechanism includes a scraping assembly, which includes a mounting plate and a first scraper disposed on the mounting plate, the first scraper having a first cutting edge that elastically abuts against the roller surface of the first roller.

[0013] Furthermore, the scraping assembly also includes two second scrapers respectively disposed at both ends of the porous filter plate, the second scrapers having a second cutting edge that flexibly contacts the working surface of the extrusion fitting.

[0014] Furthermore, the filtration device also includes a feeding assembly disposed between the external bag-breaking mechanism and the crushing mechanism, through which the bagged emulsion after being broken by the external bag-breaking mechanism enters the crushing mechanism.

[0015] Furthermore, the feeding assembly is a funnel with an isosceles trapezoidal shape in the left and right views. The upper end of the funnel is provided with a large feeding end that is connected to the discharge port of the bag breaking mechanism, and the lower end is provided with a small discharge end that is connected to the extrusion channel inlet of the crushing mechanism; its two side walls smoothly converge from the large opening to the small opening.

[0016] Furthermore, the recycling mechanism includes a receiving bin that is detachably disposed relative to the frame. The receiving bin is located below the crushing mechanism and has an opening that corresponds to and cooperates with the porous filter plate. The opening area of ​​the receiving bin is greater than or equal to the projected area of ​​the porous filter plate on the horizontal plane.

[0017] The core principle of this invention lies in providing an integrated, multi-stage mechanical pressure filtration and recovery system. The equipment, through the setting of a crushing mechanism connected to the bag breaking mechanism, utilizes at least one first roller driven by a drive component and a pressing component (which can be a second roller or the porous filter plate itself) to form a pressing channel.

[0018] After the bag is broken, the material enters the channel and is subjected to continuous roller pressure and shearing force under the combined action of the rotation drive of the first roller and the extrusion fittings. The viscous emulsion inside the packaging is forcibly squeezed out. The squeezed emulsion then drips or flows through the perforated porous filter plate below, achieving immediate separation of the emulsion from the packaging solid waste, and falls into the recycling mechanism.

[0019] During this process, the cleaning mechanism continuously scrapes away residues adhering to the roller surface and the working surface of the mating parts, ensuring extrusion efficiency and unobstructed channels. By setting up multiple first rollers and forming multiple extrusion channels with progressively decreasing gaps, a progressive rolling process of "gap-zero gap-interference" can be achieved, greatly improving the extrusion rate and adaptability.

[0020] The beneficial effects of this invention are: First, it has enabled the automation and continuity of recycling operations, resulting in high processing efficiency and significantly reducing labor costs and safety risks.

[0021] Secondly, the multi-stage progressive crushing design can squeeze out the residual emulsion inside the packaging to the maximum extent, and the recycling rate is much higher than that of the traditional single-stage processing method.

[0022] Third, the equipment features an explosion-proof design, with key roller surfaces coated with elastic rubber. This prevents sparks or debris from hard collisions with packaging aluminum buckles while ensuring sufficient compression deformation, balancing safety and process efficiency. Furthermore, the built-in filtration and automatic cleaning mechanisms effectively prevent material blockage, ensuring long-term stable operation and low maintenance requirements. The compact structure and high functional integration provide a reliable technical equipment for the green and efficient recycling of hazardous materials. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the filter crushing device of the present invention and its assembly with the frame; Figure 2 This is a schematic diagram of the internal structure of the filter crushing device of the present invention; Figure 3 This is a three-dimensional structural schematic diagram of the compaction mechanism of the present invention; Figure 4 This is a schematic diagram of the planar structure of the compaction mechanism of the present invention; Figure 5 This is a schematic diagram of the filtration mechanism of the present invention; Figure 6 This is an exploded structural diagram of the tensioning component of the present invention; Figure 7 This is an exploded structural diagram of the elastic voltage regulating component of the present invention; Figure 8 This is a three-dimensional structural diagram of the feeding assembly of the present invention; Figure 9 This is a three-dimensional structural diagram of the recycling mechanism of the present invention.

[0024] The reference numerals in the figures include: 100. Frame; 200. Filtering and crushing device; 1. Crushing mechanism; 2. Filtering mechanism; 3. Cleaning mechanism; 4. Recycling mechanism; 5. Feeding assembly; 11. First drive assembly; 111. First explosion-proof motor; 112. First pulley; 113. First transmission belt; 12. First roller; 13. Second roller; 14. Second drive assembly; 141. Second explosion-proof motor; 142. Second pulley; 143. Second transmission belt; 15. Elastic rubber coating layer; 16. Tensioning assembly; 161. 162. First support; 163. First guide rod; 164. First spring; 165. Second support; 17. Follower wheel; 18. Elastic pressure regulating component; 19. Sliding block; 10. Compression spring; 11. Spring cap; 12. Adjusting screw; 13. Movable pin; 14. Adjusting block; 25. Porous filter plate; 36. Mounting plate; 37. First scraper; 38. Second scraper; 49. Baffle plate; 40. Receiving bin; 41. Opening; 42. Handle; 53. Feeding end; 54. Discharge end. Detailed Implementation

[0025] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0026] Please see Figures 1 to 9 As shown, an emulsion filtration and crushing recycling device of the present invention includes a frame 100 and a filtration and crushing device 200 disposed on the frame 100; the filtration and crushing device 200 includes a crushing mechanism 1, a filtration mechanism 2, a cleaning mechanism 3, and a recycling mechanism 4; the crushing mechanism 1 is configured to cooperate with an external bag-breaking mechanism to receive the bagged emulsion after the bag is broken, the crushing mechanism 1 includes a first drive assembly 11, a first roller 12 connected to the first drive assembly 11, and a pressing component cooperating with the first roller 12, the first drive assembly 11 is used to drive the first roller 12 to rotate, the filtration mechanism 2 includes a porous filter plate 21 configured to cooperate with the first roller 12, and a pressing channel is formed between the first roller 12 and the pressing component or the porous filter plate 21; After being broken open by the external bag-breaking mechanism, the bagged emulsion is squeezed and conveyed in the extrusion channel to squeeze out the emulsion inside the bagged emulsion, and the squeezed emulsion enters the recycling mechanism 4 through the porous filter plate 21; the cleaning mechanism 3 is used to clean the emulsion adhering on the working surface of the first roller 12 and the extrusion fitting.

[0027] Specifically, in this embodiment, the frame 100 is welded from a rectangular box frame to form a stable lateral support structure, and all major components are installed within this frame. After sandblasting to remove rust, the surface of the frame 100 is coated with dark gray anti-static paint, and the bottom is equipped with height-adjustable anchor bolts for leveling the equipment and adapting to uneven ground.

[0028] Specifically, an explosion-proof electrical control cabinet is centrally installed on one side of the rack 100, and all motor and sensor cables are introduced into the cabinet through explosion-proof flexible conduits.

[0029] The feed inlet of the crushing mechanism 1 is a square flared mouth made of stainless steel. Its flange edge is bolted to the rectangular discharge gate of the external bag breaking mechanism through a rubber sealing gasket. There is no step drop at the joint, ensuring a smooth material transition.

[0030] In this embodiment, the first explosion-proof motor 111 in the first drive assembly 11 is a horizontally mounted explosion-proof three-phase asynchronous motor, which is fixed to the reinforcing rib plate on the side of the frame 100 by a motor base with vibration damping pads. Its output shaft passes through an explosion-proof flexible coupling to compensate for installation errors and absorb starting shocks.

[0031] The first roller body 12 is the core actuator. Its roller core is made of 45 steel and is heat-treated. It is installed in a heavy-duty cast iron bearing housing by two double-row tapered roller bearings. The bearing housing is fixed to the mounting plates 32 with a thickness of 20 mm on both sides of the frame 100 with hexagonal socket bolts.

[0032] The bearing housing is fitted with a labyrinth-type sealed end cap on the outside, and the inside is filled with food-grade lithium-based grease to prevent emulsion intrusion.

[0033] Specifically, in this embodiment, the extrusion fitting is preferably a second roller 13, which is installed in a mirror-symmetrical manner with the first roller 12. The axes of the two rollers are adjusted to a strictly parallel state by a laser calibrator. The narrow gap between the first roller 12 and the second roller 13 forms the extrusion channel from the inlet to the outlet, with a larger gap at the inlet that gradually narrows towards the outlet.

[0034] The porous filter plate 21 is made of 304 stainless steel sheet in one piece. Each plate is independently installed in the T-slot of the side beam of the frame 100 by countersunk screws, which is convenient for individual disassembly and cleaning. The plate is covered with regularly arranged round holes, the edges of which are deburred. The plate surface has a slight tilt angle along the material movement direction to facilitate the flow of liquid to the collection area.

[0035] The scraper of the cleaning mechanism 3 is mounted on a finely adjustable blade holder, which is itself connected to the crossbar of the frame 100 through a waist-shaped hole, allowing the operator to make compensation adjustments to the front and rear positions according to the wear of the roller surface.

[0036] Preferably, the bottom of the collection tray of the recycling mechanism 4 is equipped with a weighing sensor that can be linked with the control system to automatically prompt for replacement when the emulsion is collected to the set weight.

[0037] In actual use, after the equipment is powered on, the operator presses the start button, and the first explosion-proof motor 111 and the second explosion-proof motor 141 start in sequence according to the preset program, driving the first roller 12 and the second roller 13 to rotate in opposite directions. The speed is usually controlled at 15 to 30 revolutions per minute to maintain the output characteristics of low speed and high torque.

[0038] The mixture after the bag is broken—including rubber, aluminum buckles, and some of the emulsion that has already leaked out—falls from the flared end into the "biting zone" of the rotating roller gap. The special rubber coating on the roller surface provides sufficient friction, like a pair of slow but powerful hands, dragging the material into the gradually increasing pressure gap between the rollers.

[0039] The rubber sheet is squeezed and stretched under enormous radial pressure, forcing the semi-solid emulsion remaining inside to be squeezed out from the punctured holes and gaps in the rubber fibers, turning into a flowable slurry. This emulsion then detaches from the rubber sheet and drips under gravity, or is carried down the roller surface and falls onto the porous filter plate 21.

[0040] Solid rubber and aluminum clips are continuously "spit out" forward by the rotating rollers, eventually falling into the waste bin (not shown in the figure) from the slag discharge port at the end of the equipment. The first scraper 33 and the second scraper 34 are always attached to the roller surfaces of the first roller body 12 and the second roller body 13 with a constant slight pressure, scraping off any residual paste that tries to adhere to them, and maintaining the original high friction state of the roller surfaces.

[0041] Specifically, the holes in the filter plate allow the emulsion to pass through smoothly, while also blocking any small pieces of rubber that might accidentally fall. The emulsion passing through the holes falls into the receiving hopper 41 below, completing a thorough solid-liquid separation.

[0042] Compared to existing technologies that involve manual unpacking and squeezing or single-roll pressing, this solution constructs a closed, continuous, and automated mechanical extrusion separation production line, minimizing human intervention in the handling of high-risk materials, significantly improving recycling efficiency, and completing the entire process in a controllable explosion-proof environment, achieving a good balance between safety and economy.

[0043] Specifically, in this embodiment, in order to meet the demand for large-volume processing and improve the extrusion effect, a multi-roller series rolling mechanism 1 is designed.

[0044] Preferably, the three first rollers 12 are arranged in a row along the material's forward direction, and their respective bearing seats are mounted on the same precision-milled base plate. This base plate is connected to the main body of the frame 100 via hinges and adjusting screws 174, allowing the entire roller system plane to tilt as a whole within a certain angle range, preferably at a 30-degree angle to the horizontal plane. This tilt angle allows the material to move naturally downstream with the assistance of gravity, reducing the load on the rollers.

[0045] Three second rollers 13 are mounted on their respective upper base plates in the same manner, corresponding one-to-one with the first rollers 12, forming three independent rolling pairs. The gap between each pair of rolling pairs can be adjusted independently, which is achieved by the elastic pressure adjusting assembly 17 on the bearing seat of each first roller 12.

[0046] When the equipment is running, the ruptured enema package mixture first enters the larger gap (e.g., 5 mm) between the first pair of rollers, undergoing an initial, destructive squeeze, during which most of the emulsion is extruded.

[0047] Subsequently, the slightly shriveled but still residual rubber is carried into the "zero gap" area of ​​the second pair of rollers, where the rubber coatings of the two rollers are in slight contact, forming extremely high surface pressure, which further squeezes out the emulsion that failed to be squeezed out in the first operation and adhered to the inner wall of the rubber.

[0048] Finally, the almost flattened rubber sheet enters the "interference" zone of the third pair of rollers, where the rubber layers of the two rollers have a theoretical overlap of about 1 mm. During operation, the rubber undergoes elastic deformation, generating extremely high pressure to perform a final "squeeze" on the rubber sheet, ensuring that no paste residue remains.

[0049] These three workstations act like three pressure checkpoints for the materials, each more stringent than the last. On the inclined plane, the materials automatically pass through these three checkpoints by gravity and the rotation of multiple compaction pairs.

[0050] Compared to the single-point, one-time, and non-adjustable pressure rollers in existing technologies, the multi-stage adjustable series roller pressing design of this solution achieves gradual and almost complete pressing of materials, which is especially suitable for processing viscous and easily residual pastes. The recovery rate can reach a satisfactory level. At the same time, due to the application of pressure in stages, the load impact on individual transmission components is also reduced.

[0051] Specifically, in this embodiment, the key to achieving three-stage roller pressing lies in precisely controlling the "gap" between each rolling pair. This "gap" is not a fixed value, but a variable that can be dynamically set and maintained according to process requirements.

[0052] Preferably, for the first stage of "gap roller pressing", the operator sets the minimum distance between the two rollers to between 3 and 5 mm by rotating the adjusting screw 174 of the first rolling pair. This gap is sufficient to allow sausages (about 30-45 mm in diameter) to enter smoothly without getting stuck, while also applying sufficient initial extrusion force to the material as it passes through.

[0053] The second-stage "gapless roller pressing" setting is even more precise. By adjusting the adjusting screw 174 of the second pressing pair, the rubber coating layers on the surfaces of the two rollers are just in contact under no-load and static conditions. This is tested using an extremely thin plastic sheet (e.g., 0.03 mm). A slight resistance felt when pulling the sheet indicates that the setting is appropriate. In actual material pressing, due to the elasticity of the rubber sheet, an extremely thin but high-pressure extrusion zone is formed.

[0054] The third-stage "interference roll" setting actively allows the two rollers to "interfere." By adjusting the adjusting screw 174 of the third rolling pair, the rubber layers of the two rollers theoretically overlap by 0.5 to 1 millimeter under static conditions. This "interference" setting needs to take into account the elastic modulus of the rubber and the expected final pressure, and is usually determined through experiments.

[0055] As the equipment operates and material passes through, the torque of the drive motor forces the rubber to compress and deform, generating a much greater radial pressure than the previous two stages, thus performing the final pressing. All adjusting screws 174 are equipped with graduated knobs at their ends, facilitating operator recording and replication of successful process parameters.

[0056] This graded adjustable pressure setting mimics the intuitive operation of an experienced worker manually pressing the material, which involves "loosening first, then tightening, and gradually increasing the pressure," but it standardizes, refines, and automates this process.

[0057] Compared to pressure rollers with fixed gaps or single pressure modes in existing technologies, the pressure gradient provided by this solution can be precisely set in stages, which can scientifically adapt to the changes in the physical state of materials at different extrusion stages, maximize extrusion efficiency, and avoid material blockage or premature rupture of the rubber due to excessive initial pressure, thus preventing residue from being trapped.

[0058] Preferably, in this embodiment, two limiting plates are respectively installed at both ends of the first roller 12 and the second roller 13 in the axial direction. Multiple filter holes are evenly opened on these limiting plates to prevent the squeezed emulsion from leaking out from the side. Through these lateral limiting plates and filter holes, the emulsion on the side of the two rollers can also be squeezed and slowly flowed to the lower receiving bin 41.

[0059] Specifically, in this embodiment, the first drive assembly 11 not only provides power but also ensures smooth and reliable transmission. The first explosion-proof motor 111 is controlled by a frequency converter, enabling soft start and stepless speed regulation to adapt to different material states.

[0060] Preferably, the output shaft of the first explosion-proof motor 111 is connected to a first pulley 112 (driving) made of high-strength cast iron via a two-stage keyway to ensure slip-free torque transmission. The second pulley 112 (driven) is also made of cast iron and is mounted on a hub that is interference-fitted with the shaft end of the first roller body 12.

[0061] Connecting the two is a double-sided toothed synchronous belt with circular arc teeth (HTD type). This design transmits high torque and low noise.

[0062] Considering the natural elongation of the belt after long-term operation and the influence of changes in ambient temperature, an automatic tensioning mechanism is installed. This mechanism is not a simple idler pulley, but a floating tensioning assembly 16 integrating springs and damping.

[0063] Specifically, in this embodiment, the tensioning assembly 16 is disposed on the side of the frame 100 near the first explosion-proof motor 111 and the first belt drive unit. Each first roller 12 is provided with a corresponding set of tensioning assemblies 16.

[0064] The first bracket 161 is a square frame structure cut from a single steel plate. Its bottom is securely fastened to the side mounting surface of the frame 100 by four hexagonal head bolts. This mounting surface is milled to ensure flatness. On the upper part of the first bracket 161, a precision-ground optical shaft is welded perpendicular to the mounting surface as the first guide rod 162. The two ends of the optical shaft are threaded and locked with nuts to ensure that its axis is parallel to the transmission plane where the pulley is located.

[0065] The second bracket 164 is a sliding block with a bearing mounting hole. A linear bearing is press-fitted at the center of its plate. The linear bearing is slidably sleeved on the first guide rod 162, so that the second bracket 164 can move smoothly along the axial direction of the first guide rod 162 without shaking.

[0066] A first spring 163, specifically a compression helical spring, is directly sleeved on the first guide rod 162, located between the connecting plate of the first bracket 161 and the back of the second bracket 164, applying an elastic force to the second bracket 164 to push it away from the first bracket 161.

[0067] At the front end of the second bracket 164, a follower wheel 165 is mounted via a short shaft and a pair of deep groove ball bearings. The outer surface of the follower wheel 165 is machined with shallow grooves or smooth surfaces that are compatible with the back of the first transmission belt 113 (flat belt) or the back of the teeth (synchronous belt), and its axis is perpendicular to the first guide rod 162.

[0068] During assembly, adjust the position of the entire tensioning assembly 16 so that the slack side (non-tight side) of the first transmission belt 113 can naturally embed or fit into the groove or surface of the follower wheel 165.

[0069] By turning the adjusting nut at the end of the first guide rod 162, the initial compression of the first spring 163 can be changed, thereby setting the preload applied to the second bracket 164 and the follower wheel 165.

[0070] This preload is ultimately applied to the back of the first drive belt 113 via the follower pulley 165, ensuring that it is always kept under appropriate tension.

[0071] When the equipment has been running for a period of time, the first transmission belt 113 will naturally elongate due to stretching. The pre-compressed first spring 163 will push the second bracket 164 to move along the first guide rod 162, which will drive the follower wheel 165 to press further against the transmission belt, automatically compensating for its elongation and maintaining the stability of the tension.

[0072] Compared to existing technologies that use belt drives with fixed center distances and require manual periodic shutdowns for adjustment, or complex hydraulic or pneumatic tensioning devices, the purely mechanical, spring-driven automatic tensioning assembly 16 provided in this solution has an extremely simple and reliable structure. It can automatically maintain the optimal working tension of the belt throughout the entire operation of the equipment without the need for external power or complex control, effectively preventing slippage, loss of rotation and accelerated wear caused by belt slack, and significantly improving the stability and maintenance convenience of the transmission system.

[0073] Specifically, in this embodiment, the elastic pressure regulating component 17 is installed on the outside of the bearing seat at one end of the first roller body 12 to achieve stepless adjustment and buffering of the roller body's working pressure. The core support of this component is a rectangular steel block, namely the adjusting block 176, which is detachably fixed to the side plate of the frame 100. A precision threaded through hole is machined in the middle of the block. An adjusting screw 174 is screwed into this threaded hole. The end of the adjusting screw 174 near the first roller body 12 holds a disc-shaped spring cap 173 through a thrust ball bearing, so that rotating the adjusting screw 174 can smoothly push the spring cap 173 to move axially without causing it to rotate.

[0074] A concentric groove is provided on the side of the spring cap 173 facing the first roller body 12, and one end of a movable pin 175 is fixed to the bottom of the groove. A high-stiffness compression spring 172 is sleeved on the outside of the movable pin 175, with one end of it pressing against the bottom surface of the groove of the spring cap 173.

[0075] The other end of the compression spring 172 rests on the end face of a square sliding block 171. The center of the sliding block 171 has a light hole that slides with the movable pin 175 to ensure that the spring force is transmitted along the axis and to prevent the spring from becoming unstable.

[0076] The other end of the sliding block 171 is connected to the outer connecting plate of the bearing seat of the first roller 12 through a spherical bearing, thereby converting the axial spring force into a force that drives the roller to make radial fine adjustments.

[0077] When the operator uses a wrench to rotate the adjusting screw 174, the forward and backward movement of the adjusting screw 174 changes the position of the spring cap 173, thereby adjusting the pre-compression of the compression spring 172. When the compression spring 172 is further compressed, the elastic force acting on the sliding block 171 increases, pushing the entire bearing seat of the first roller body 12 along its guide mechanism towards the pressing mating part through the spherical bearing, reducing the gap between the rollers and increasing the working pressure.

[0078] Conversely, rotating the adjusting screw 174 in the opposite direction releases the pressure of the compression spring 172. Under the reaction force of the material or the reset mechanism, the gap between the rollers increases and the working pressure decreases. The movable pin 175 slides freely within the light hole of the sliding block 171, mainly serving a centering and guiding function to prevent the compression spring 172 from bending laterally under pressure.

[0079] The entire adjustment process is smooth and linear. The presence of the compression spring 172 gives the roller pressure a certain elasticity. When an incompressible hard object (such as an aluminum buckle) passes through the roller gap, the compression spring 172 can be further compressed, allowing the first roller 12 to retract instantly, avoiding equipment jamming or damage. After the hard object passes through, it can automatically reset.

[0080] Compared to existing technologies that use rigid adjustment methods such as pure threaded push rods or fixed installation methods with non-adjustable pressure, the elastic pressure regulating component 17 with integrated springs provided in this solution not only achieves precise and linear adjustment of working pressure, but also provides valuable buffer stroke and overload protection for the roller body. This allows the equipment to adapt more gently and intelligently to hard foreign objects mixed in the material, significantly improving the reliability of operation and adaptability to complex working conditions.

[0081] Specifically, in this embodiment, when a dual-roller pressing scheme is adopted, the surface treatment of the two rollers is of paramount importance to ensure safety and efficiency. The specific manufacturing method is as follows: After rough machining, the steel roller cores of the first roller body 12 and the second roller body 13 undergo advanced motion balancing correction to eliminate vibrations during high-speed rotation. Then, the roller core surface is roughened by sandblasting to increase the bonding strength between the rubber and the metal. Next, a layer of polyurethane elastomer with a thickness of approximately 20 mm is hot-vulcanized and coated onto the roller core. The hardness of the polyurethane material is selected to be approximately Shore A 85, which provides sufficient rigidity to generate high pressure while retaining a certain degree of elasticity to withstand aluminum buckles.

[0082] Antistatic agents and flame retardants were also added to the material formulation to meet overall explosion-proof requirements. After the coating is completed, the roller surface is finely ground to a uniform diameter and smoothness, and smooth rounded corners are machined at both ends to prevent scratching the material or accumulating residue.

[0083] As the aluminum buckle in the sausage packaging passes through the roller gap along with the rubber sheet, the rigid aluminum buckle is partially pressed into the relatively soft polyurethane layer. The elasticity of the polyurethane allows the aluminum buckle to "sink in" and then "pop out," avoiding direct metal-to-metal impact and friction throughout the process, fundamentally eliminating the risk of sparks or metal fragments caused by mechanical collisions.

[0084] Meanwhile, the rubber surrounding the aluminum buckle continues to apply uniform and strong pressure to the rubber sheet from all directions, continuously squeezing out emulsion. This rubber coating is like putting a thick "rubber glove" on the hard steel roller, protecting the processed material (aluminum buckle) from damage, protecting the equipment itself, and, more importantly, achieving inherent safety.

[0085] Compared to existing technologies that use smooth steel rollers or simply spray a layer of plastic coating onto steel rollers, this solution employs a specific thickness and hardness of integral vulcanized rubber coating, which represents a significant improvement in safety, durability, and functionality. It enables the equipment to safely handle flammable and explosive materials with metal components.

[0086] Specifically, in this embodiment, the design of the cleaning mechanism 3 directly affects the continuous working capacity and maintenance cycle of the equipment. The mounting plate 32 in the scraper assembly is an anodized aluminum alloy plate, which is not only lightweight but also corrosion-resistant. It is mounted on the frame 100 via three adjustable support columns, allowing for fine-tuning of the mounting angle of the entire scraper assembly.

[0087] Preferably, the first scraper 33 is made from a single piece of ultra-high molecular weight polyethylene (UHMW-PE) sheet by CNC milling. This material is known as the "king of wear resistance" and has non-stick properties. The body of the first scraper 33 is fixed to the mounting plate 32 by stainless steel pressure strips and screws, and its working cutting edge is machined into an arc shape that precisely matches the curvature of the roller surface of the first roller body 12.

[0088] During installation, the operator uses a 0.1 mm thick feeler gauge to adjust the scraper blade to a state of slight contact with the roller surface, meaning the feeler gauge can be pulled out but there is noticeable resistance. Then, the fixing screws are tightened. This ensures the scraping effect while avoiding excessive pressure that could accelerate wear on the scraper or roller surface.

[0089] In the twin-roller design, the two second scrapers 34 located at both ends of the porous filter plate 21 are more sophisticatedly designed. Instead of directly scraping the main roller surface of the second roller body 13, they focus on cleaning the area near the baffle plate 35 at both ends of the roller surface of the second roller body 13, where residual material squeezed out axially tends to accumulate.

[0090] In actual manufacturing, each second scraper 34 can be mounted via a "floating blade holder" containing a small disc spring, which allows the scraper blade edge to adhere to the roller end area with a constant, slight pressure, maintaining contact even if the roller experiences slight axial movement or thermal expansion.

[0091] Replacing all the scrapers is very simple; they can be removed by loosening one or two screws. During routine maintenance, the operator will check the blade for wear and curling and then make simple repairs with fine sandpaper.

[0092] This cleaning system functions similarly to a barber constantly brushing away stray hairs from electric clippers to ensure the tools are always in optimal working condition.

[0093] Compared to existing technologies that neglect cleaning or use metal scrapers that can easily damage the roller surface, this solution uses a flexible contact scraper made of special polymer material, which achieves efficient and non-destructive online cleaning, ensuring the long-term unobstructed flow of the extrusion channel and a stable extrusion effect, and minimizing the frequency of equipment downtime due to cleaning.

[0094] Specifically, in this embodiment, the feeding assembly 5 is the key link between the preceding bag-breaking process and this equipment. It is designed as a fully sealed stainless steel welded funnel, with an overall shape resembling a flattened truncated pyramid. The large opening of the funnel's feeding end 51 is a regular rectangle, with dimensions perfectly matching the discharge port of the bag-breaking mechanism. The two are connected by a silicone rubber sealing gasket and a quick-lock clamp, allowing for quick assembly and disassembly while ensuring a reliable seal.

[0095] The funnel body is welded from four steel plates, and all internal welds are ground and polished to a mirror finish, eliminating the possibility of material sticking to the wall. The small outlet end 52 at the bottom of the funnel is narrowed into a flat slit, the width of which is slightly larger than the inlet width between the two rollers of the rolling mechanism 1. The bottom edge of the slit is machined into a smooth guide lip, extending about 10-15 mm above the roller gap inlet, so as not to contact the rotating rollers, while ensuring that the material is accurately guided into the biting zone.

[0096] The angled sidewalls of this funnel ensure that even highly viscous emulsions can flow smoothly under their own weight without forming bridging blocks. An observation window with a transparent acrylic pane and a small explosion-proof LED light can also be installed in the middle of the funnel to allow the operator to visually check whether the feeding is smooth.

[0097] This seemingly simple funnel actually serves multiple functions: buffering, guiding, and sealing. It transforms the intermittent, batch feeding from the bag-breaking mechanism into a continuous, stable, and directionally focused flow of material, smoothly "feeding" it to the pressing rollers, much like feeding grain evenly into a precision mill. This is a crucial prerequisite for subsequent efficient and stable extrusion operations.

[0098] Compared to simple chutes or direct open discharge, the sealed guide funnel in this solution effectively prevents the spread of material dust or odor, improves the working environment, and eliminates the problem of roller idling or clogging caused by uneven material discharge.

[0099] Specifically, in this embodiment, the convenience design of the recycling mechanism 4 fully considers the frequency and intensity of manual operation. The receiving bin 41 is made of a stainless steel box with reinforcing ribs, and its top is completely open. The opening 42 is about 50 mm larger than the projection area of ​​all the porous filter plates 21 on the horizontal plane, forming a "water tray" type safety boundary to ensure that even if liquid splashes, it will not fall outside the bin.

[0100] The receiving hopper 41 has an inward slope of approximately 10 degrees on all four walls from top to bottom. This angle allows for natural flow guidance and facilitates scraping during manual cleaning. The hopper bottom is not flat but designed with a slight inclination to one side, where a large-diameter stainless steel ball valve is installed as a discharge valve. Four solid polyurethane wheels are installed at the four corners of the bottom of the hopper, and two U-shaped guide rails are correspondingly laid on the lower part of the frame 100.

[0101] When the hopper needs to be emptied, the operator simply walks to the front of the equipment, opens the interlocked safety door (automatic shutdown upon opening the door), manually closes the discharge valve (if it was previously open), and then grasps the specially designed arc-shaped handle 43 on the side of the hopper. With a little force, the entire hopper can be smoothly pulled out along the guide rail. The whole process does not require bending over or using tools.

[0102] After being pulled out, the hopper can be pushed to the designated dumping position, and the discharge valve can be opened to discharge the emulsion into a larger transfer bucket.

[0103] During cleaning, the inside of the hopper can be directly rinsed with a high-pressure water gun. After cleaning and drying, push the hopper back into the frame 100 along the guide rail until you hear the "click" sound of the positioning pin entering its position, indicating that the hopper has been accurately reset. The mechanical limit block at the end of the guide rail prevents the hopper from being pushed in excessively or accidentally dislodging.

[0104] This design makes the collection and cleaning work, which could have been very troublesome, easy and simple, greatly encouraging operators to clean in a timely manner and keeping the equipment clean and operating efficiently.

[0105] Compared to fixed welded collection troughs or collection boxes that require tools to disassemble, the guide rail pull-out hopper in this solution represents a qualitative improvement in terms of user-friendliness, operational efficiency, and ease of maintenance. It transforms the daily maintenance of the equipment from a "task" into a simple "action."

[0106] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. An emulsion filtration and crushing recycling device, comprising a frame (100) and a filtration and crushing device (200) disposed on the frame (100); characterized in that: The filter crushing device (200) includes a crushing mechanism (1), a filtering mechanism (2), a cleaning mechanism (3), and a recycling mechanism (4); the crushing mechanism (1) is configured to receive the bagged emulsion after the bag is broken in cooperation with the external bag breaking mechanism. The crushing mechanism (1) includes a first drive assembly (11), a first roller (12) connected to the first drive assembly (11), and an extrusion fitting that cooperates with the first roller (12). The first drive assembly (11) is used to drive the first roller (12) to rotate. The filtering mechanism (2) includes a porous filter plate (21) that cooperates with the first roller (12). An extrusion channel is formed between the first roller (12) and the extrusion fitting or the porous filter plate (21). After being broken by the external bag-breaking mechanism, the bagged emulsion is squeezed and conveyed in the extrusion channel. The emulsion inside the bagged emulsion is squeezed by the first roller (12), and the squeezed emulsion enters the recycling mechanism (4) through the porous filter plate (21). The cleaning mechanism (3) is used to clean the emulsion adhering on the working surface of the first roller (12) and the extrusion fitting.

2. The emulsion filtration and crushing recycling equipment according to claim 1, characterized in that: Multiple first roller bodies (12) are provided, and multiple first roller bodies (12) are rotatably mounted on the frame (100), and the rotation axes of multiple first roller bodies (12) are in the same plane; the number of extrusion fittings is multiple, and the number of extrusion fittings is the same as the number of first roller bodies (12); the number of porous filter plates (21) is multiple, and the porous filter plates (21) are fitted with the first roller bodies (12) and the extrusion fittings.

3. The emulsion filtration and crushing recycling equipment according to claim 2, characterized in that: A relative distance a is provided between the roller surface of the first first roller (12) and the working surface of the first extrusion fitting or the first porous filter plate (21), a relative distance b is provided between the roller surface of the second first roller (12) and the working surface of the second extrusion fitting or the second porous filter plate (21), and a relative distance c is provided between the roller surface of the third first roller (12) and the working surface of the third extrusion fitting or the third porous filter plate (21); the relative distance a > relative distance b > relative distance c.

4. The emulsion filtration and crushing recycling equipment according to claim 1, characterized in that: The first drive assembly (11) includes a first explosion-proof motor (111) and a first belt drive unit disposed at the output end of the first explosion-proof motor (111). The first belt drive unit includes two first pulleys (112) and a first drive belt (113) wound between the two first pulleys (112).

5. The emulsion filtration and crushing recycling equipment according to claim 1, characterized in that: The extrusion fitting is a second roller (13) rotatably mounted on the frame (100). The rolling mechanism (1) also includes a second drive assembly (14) connected to the second roller (13). The second drive assembly (14) is used to drive the second roller (13) to rotate. The rotation direction of the second roller (13) is opposite to the rotation direction of the first roller (12).

6. The emulsion filtration and crushing recycling equipment according to claim 5, characterized in that: The surfaces of the first roller (12) and / or the second roller (13) are provided with an elastic coating layer (15).

7. The emulsion filtration and crushing recycling equipment according to claim 1, characterized in that: The cleaning mechanism (3) includes a scraping assembly, which includes a mounting plate (32) and a first scraper (33) disposed on the mounting plate (32). The first scraper (33) has a first cutting edge that elastically abuts against the roller surface of the first roller body (12).

8. The emulsion filtration and crushing recycling equipment according to claim 7, characterized in that: The scraping assembly also includes two second scrapers (34) respectively disposed at both ends of the porous filter plate (21), the second scrapers (34) having a second cutting edge that elastically abuts against the working surface of the extrusion fitting.

9. The emulsion filtration and crushing recycling equipment according to claim 1, characterized in that: The filtration device also includes a feeding assembly (5) disposed between the external bag breaking mechanism and the crushing mechanism (1). The bagged emulsion after being broken by the external bag breaking mechanism enters the crushing mechanism (1) via the feeding assembly (5).

10. The emulsion filtration and crushing recycling equipment according to claim 1, characterized in that: The recycling mechanism (4) includes a receiving bin (41) that is detachably disposed relative to the frame (100). The receiving bin (41) is disposed below the crushing mechanism (1). The receiving bin (41) has an opening (42) that corresponds to and cooperates with the porous filter plate (21). The area of ​​the opening (42) of the receiving bin (41) is greater than or equal to the projected area of ​​the porous filter plate (21) on the horizontal plane.

Images