Low-energy-consumption paper pulp preparation device

Abstract

The invention provides a low-energy-consumption paper pulp preparation device, and relates to the technical field of paper pulp preparation. A reaction tank is fixedly mounted at the upper position in the instrument rack main body, a pretreatment filter cartridge is arranged in the reaction tank, the pretreatment filter cartridge penetrates through the inner position of the reaction tank, and an auxiliary positioning seat is fixedly mounted at the top position of the pretreatment filter cartridge. The motor B can simultaneously drive the spiral mixing frame to stir raw materials and drive the bevel gear rotating rod and the conical spiral device to disperse the raw materials, a traditional multi-motor respective driving mode is replaced, and the number of the motors and total power consumption are reduced. The problems that an existing device is single in mixing mode of paper pulp raw materials and enzyme liquid, uneven mixing is prone to occurring, biological enzymolysis reaction is insufficient, impurities in the raw materials are not thoroughly separated, the follow-up pulping quality can be reduced due to residual impurities, and equipment abrasion can be possibly aggravated are solved.

Description

Technical Field

[0001] This invention relates to the field of pulp preparation technology, and in particular to a low-energy pulp preparation apparatus. Background Technology

[0002] In recent years, my country's papermaking industry has continued to develop, and energy conservation, emission reduction, quality improvement and efficiency enhancement have become the development direction of the new era. Mechanical pulping is widely used due to its advantages such as high yield and good pulp quality. As a key piece of equipment in mechanical pulping, the disc mill has high power consumption during operation, especially in high-consistency pulping, which is also a key research direction for energy conservation and emission reduction in the pulping process. Corrugated paper occupies a pivotal position in the packaging field due to its many advantages such as low cost, light weight, convenient processing, high strength, excellent printability, and convenient storage and handling. It is widely used in the packaging of various products such as express delivery, food, and digital products. According to relevant reports from China's papermaking industry, the consumption of corrugated base paper continues to be high. However, the current corrugated pulp preparation technology is facing a series of severe challenges.

[0003] Application number CN201921015056.9 discloses a pulp preparation device, including: a tank, a motor, a stirring shaft, blades, a metering pump, a dosing tank, a water pump, and a remote control for remotely controlling the metering pump. The metering pump and motor are installed on the top of the tank, the stirring shaft is placed inside the tank, and the upper end of the stirring shaft is connected to the output end of the motor. Multiple blades are arranged circumferentially on the stirring shaft. A water inlet is provided at the top of the tank, and multiple spray nozzles are evenly arranged circumferentially at the bottom of the tank. The water inlet is connected to the multiple spray nozzles through the water pump. The inlet of the metering pump is connected to the dosing tank through a pipe, and the outlet of the metering pump is connected to the interior of the tank. A drain outlet is also provided at the bottom of the tank. This invention can achieve more uniform mixing through blades and water circulation, and can use remote control to control the metering pump for dosing, avoiding the danger of workers coming into contact with the liquid chemicals during dosing. It has the characteristics of simple structure and low cost.

[0004] Application number CN202223535064.0 discloses a device for preparing corrugated pulp from waste paper. It includes a mixing tank and a water tank. A support plate is fixed to the bottom of one side of the mixing tank, and a motor is fixed to the top of the support plate. A transmission structure is installed at the output end of the motor. A first rotating blade and a second rotating blade are fixed to the outside of the transmission structure. The transmission structure drives the first and second rotating blades to rotate in opposite directions. A water outlet is fixed to one side of the mixing tank. This invention overcomes the drawback of incomplete waste paper breaking in traditional devices during the preparation of corrugated pulp from low-quality waste paper through the design of the transmission structure, thus improving the efficiency of the device. Furthermore, the locking structure design overcomes the problem of large amounts of small paper fragments clumping and settling at the bottom of the corrugated pulp in traditional devices, which seriously affects the quality of the prepared corrugated pulp and also the quality of corrugated paper production.

[0005] Based on the above patent searches and understanding of the application of existing pulp preparation equipment: 1. Traditional equipment uses a single method to mix pulp raw materials and enzyme solutions, which easily leads to uneven mixing, resulting in insufficient biological enzymatic hydrolysis. At the same time, impurities in the raw materials are not completely separated, and residual impurities will reduce the quality of subsequent pulping and may also aggravate equipment wear. Furthermore, the processes of raw material mixing and dispersion require multiple motors to drive them separately, which further increases the total energy consumption and does not conform to the development direction of energy conservation and consumption reduction in the paper industry. 2. Traditional disc mills often have a circular grinding disc structure, which can easily create grinding blind spots in the barrel-shaped processing box. Some pulp cannot be fully ground, and the grinding disc spacing is not flexible enough to adapt to pulp with different fiber concentrations and characteristics, thus affecting grinding efficiency and pulp quality.

[0006] Therefore, in view of this, we will study and improve the existing structure and its shortcomings to provide a low-energy pulp preparation device, in order to achieve a more practical purpose. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention provides a low-energy pulp preparation device. This addresses the issues of existing devices, which often suffer from uneven mixing of pulp raw materials and enzyme solutions due to a single mixing method, resulting in insufficient enzymatic hydrolysis. Furthermore, incomplete separation of impurities from the raw materials leads to residual impurities that reduce subsequent pulping quality and may exacerbate equipment wear. Additionally, the mixing and dispersion processes require multiple motors, further increasing overall energy consumption. This contradicts the energy-saving and consumption-reducing development direction of the paper industry. Traditional disc mills, with their integral circular grinding discs, tend to create grinding blind spots within the barrel-shaped processing box, preventing the full grinding of some pulp. Moreover, the insufficient flexibility in adjusting the disc spacing makes it difficult to adapt to pulps with different fiber concentrations and characteristics, thus affecting grinding efficiency and pulp quality.

[0008] This invention provides a low-energy pulp preparation apparatus, specifically comprising: an instrument frame body; a reaction vessel fixedly installed at the upper part of the instrument frame body; a pretreatment filter cylinder disposed inside the reaction vessel, the pretreatment filter cylinder penetrating the interior of the reaction vessel; an auxiliary positioning seat fixedly installed at the top of the pretreatment filter cylinder; a motor A fixedly installed at the left side of the auxiliary positioning seat; the shaft of motor A fixedly connected to the left side of a U-shaped frame; the U-shaped frame rotatably connected to the middle of the auxiliary positioning seat; the middle protrusion of the U-shaped frame rotatably connected to the upper part of a transmission arm; the transmission arm is located at the lower middle part of the auxiliary positioning seat; and the bottom of the transmission arm rotatably connected to the top of a reciprocating moving plate. The reciprocating moving plate is slidably connected to the lower part of the auxiliary positioning seat. The bottom middle position of the reciprocating moving plate is fixedly connected to the top middle position of the motor B. A transmission frame is fixedly installed below the motor B. The transmission frame is located inside the pretreatment filter cartridge. The bottom position of the rotating shaft of the motor B is fixedly connected to the top middle position of the spiral mixing frame. The spiral mixing frame is located inside the upper part of the pretreatment filter cartridge. The bottom middle position of the spiral mixing frame is fixedly connected to the top middle position of the auxiliary sleeve. A bevel gear rotating rod is sleeved and rotated at the bottom position of the auxiliary sleeve. Conical spirals are provided at both ends of the bevel gear rotating rod. A gear ring seat is provided at the bottom position of the transmission frame. The bevel gear rotating rod meshes with the bottom position of the gear ring seat.

[0009] Furthermore, the spiral mixing frame is located in the middle of the transmission frame, and the bottom of the spiral mixing frame passes through the middle of the toothed ring seat, which is located in the lower middle of the pretreatment filter cartridge.

[0010] Furthermore, a feed pipe is installed above the rear end of the pretreatment filter cartridge, and a waste material storage tank is installed inside the main body of the instrument frame. The waste material storage tank is connected to the bottom of the pretreatment filter cartridge via a valve. The main body of the instrument frame is located in front of the disc mill frame. A transfer connection valve is installed at the front end of the reaction vessel, and an external discharge valve is installed at the rear end of the waste material storage tank.

[0011] Furthermore, a barrel-shaped processing box is installed above the grinding frame. The rear end of the barrel-shaped processing box is connected to the front end of the transfer connection valve. A motor C is fixedly installed in the middle of the left and right sides of the barrel-shaped processing box. A pneumatic telescopic component is fixedly installed at the shaft position of each motor C. The two pneumatic telescopic components are symmetrically designed, and a chuck adjustment frame is fixedly installed on the inner side of each pneumatic telescopic component.

[0012] Furthermore, two chuck adjustment frames are symmetrically distributed on the left and right sides inside the barrel-shaped machining box. A motor D is fixedly installed on the edge of the chuck adjustment frame, and a chuck bevel gear is fixedly installed on the shaft of the motor D. The chuck bevel gear is located inside the chuck adjustment frame, and a chuck bevel gear ring is rotatably connected to the middle of the chuck bevel gear. The chuck bevel gear ring meshes with the chuck bevel gear, and the inner side of the chuck bevel gear ring is provided with spiral patterns.

[0013] Furthermore, each chuck adjustment frame has three sliding grooves on its inner side, and a chuck moving claw is slidably connected in each sliding groove. The outer side of the chuck moving claw is provided with arc-shaped patterns, and the arc-shaped pattern of the chuck bevel gear ring meshes with the spiral pattern of the chuck bevel gear ring. A workpiece locking frame is fixedly installed on the inner side of each chuck moving claw.

[0014] Furthermore, two L-shaped workpiece positioning jaws are slidably connected inside the workpiece locking frame. The two workpiece positioning jaws are symmetrically distributed, and threaded holes are opened in the middle of the side of each of the two workpiece positioning jaws. The threaded holes of the two workpiece positioning jaws are designed in opposite directions. A bidirectional screw is rotatably connected in the middle of the inside of the workpiece locking frame. The two ends of the bidirectional screw pass through the threaded holes of the two workpiece positioning jaws respectively.

[0015] Furthermore, two workpiece positioning jaws hold the grinding disc workpieces, and three grinding disc workpieces are arranged in a ring on the inner side of each chuck adjustment frame. Each grinding disc workpiece has a clamping groove on its outer side and a semi-fan-shaped design on its inner side.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. Motor B can simultaneously drive the spiral mixing rack to stir the raw materials and the bevel gear rotor and conical spiral to disperse the raw materials, replacing the traditional multi-motor driving mode, reducing the number of motors and total power consumption. Motor A drives the reciprocating moving plate to move up and down through the U-shaped frame and transmission arm, so that the spiral mixing rack can flip up and down while rotating and stirring, without the need for an additional motor to drive the flipping action, further reducing energy consumption.

[0017] 2. The combined mixing method of rotational stirring and up-and-down tumbling ensures uniform contact between raw materials and enzyme solution, resulting in more complete bio-enzymatic hydrolysis and improved pretreatment effect. At the same time, the rotation of the conical spiral can push impurities in the pretreatment filter cartridge to the impurity storage tank, achieving efficient separation of impurities from pulp, reducing impurity interference in subsequent pulping stages, and improving pulp purity.

[0018] 3. Three semi-fan-shaped grinding disc workpieces are distributed in a ring on the inner side of each chuck adjustment frame. The three grinding disc workpieces on the same side are combined to form a complete grinding area. With the adjustment function of the chuck moving claw driven by motor D, the position of the grinding disc workpiece can be flexibly adjusted to completely eliminate the processing blind spot. Furthermore, the distance between the two chuck adjustment frames can be precisely adjusted by the pneumatic telescopic component, thereby adjusting the distance between the grinding disc workpieces to adapt to the grinding needs of pulps with different concentrations and fiber characteristics, thereby improving the grinding efficiency and pulp uniformity.

[0019] 4. The semi-fan-shaped grinding disc workpiece adopts a split structure. When there is local wear, only the corresponding worn grinding disc workpiece needs to be replaced, without the need for overall replacement, which greatly reduces maintenance costs. In addition, the workpiece locking frame drives two symmetrical workpiece positioning jaws to hold the grinding disc workpiece through a bidirectional screw. Rotating the bidirectional screw can realize the quick fixing and disassembly of the grinding disc workpiece, simplifying the replacement process and reducing downtime maintenance time.

[0020] 5. A waste material storage tank is set up to temporarily store filter impurities. The impurities can be directly discharged through the external discharge valve to avoid the accumulation of impurities in the pretreatment filter cartridge. In addition, the conical spiral device rotates continuously during the impurity separation stage, which can push the residual impurities to the waste material storage tank, reduce the amount of impurities remaining in the pretreatment filter cartridge, reduce the difficulty of equipment cleaning, improve cleaning efficiency, and ensure the long-term stable operation of the equipment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0022] In the attached diagram: Figure 1 A schematic diagram of the left-hand structure of a low-energy pulp preparation apparatus according to an embodiment of the present invention is shown; Figure 2 A side view of the low-energy pulp preparation apparatus according to an embodiment of the present invention is shown. Figure 3 A schematic diagram of the bottom side structure of a low-energy pulp preparation apparatus according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the left-side half-section structure of a low-energy pulp preparation apparatus according to an embodiment of the present invention is shown; Figure 5 A schematic half-sectional side view of a low-energy pulp preparation apparatus according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of the bottom view structure of the auxiliary positioning seat according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of the bottom side view of the auxiliary positioning seat structure according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of the left-side structure of the auxiliary positioning seat according to an embodiment of the present invention is shown; Figure 9 A schematic diagram of a partial sectional side view of some parts in the grinding frame and workpiece locking frame according to an embodiment of the present invention is shown.

[0023] Figure label: 1. Instrument rack main body; 101. Reaction vessel; 102. Pretreatment filter cartridge; 103. Feed pipe; 104. Transfer connection valve; 105. Waste material storage tank; 106. Exhaust valve; 2. Auxiliary positioning seat; 201. Motor A; 202. U-shaped frame; 203. Transmission arm; 204. Reciprocating moving plate; 205. Motor B; 206. Transmission frame; 207. Spiral mixing frame; 208. Gear ring seat; 209. 210. Auxiliary sleeve; 211. Bevel gear rotating rod; 212. Conical auger; 3. Disc grinding frame; 301. Barrel-shaped processing box; 302. Motor C; 303. Pneumatic telescopic component; 304. Chuck adjusting frame; 305. Motor D; 306. Chuck bevel gear; 307. Chuck bevel gear ring; 308. Chuck moving jaw; 4. Workpiece locking frame; 401. Bidirectional screw; 402. Workpiece positioning jaw; 403. Grinding disc plate workpiece. Detailed Implementation

[0024] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0025] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of this disclosure shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It should also be understood that terms such as those defined in a common dictionary shall be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as being interpreted in an idealized or highly formalized sense, unless expressly defined in the embodiments of this disclosure.

[0026] The terms "first," "second," and similar words used in the embodiments of this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a," "one," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. Likewise, the terms "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. In the following description, spatial and directional terms such as "upper," "lower," "front," "rear," "top," "bottom," "vertical," and "horizontal" may be used to describe embodiments of this disclosure; however, it should be understood that these terms are only for the convenience of describing the embodiments shown in the figures and do not require the actual device to be constructed or operated in a specific orientation. In the following description, the use of terms such as "connected," "joined," "fixed," and "attached" can refer to a direct connection between two elements or structures without other elements or structures, or to an indirect connection between two elements or structures via an intermediate element or structure, unless otherwise expressly stated herein.

[0027] Example: As attached Figure 1 To be continued Figure 9 As shown: This invention provides a low-energy pulp preparation apparatus, comprising: an instrument frame body 1; a reaction vessel 101 fixedly installed at the upper part of the instrument frame body 1; a pretreatment filter cylinder 102 disposed inside the reaction vessel 101, the pretreatment filter cylinder 102 penetrating the interior of the reaction vessel 101; an auxiliary positioning seat 2 fixedly installed at the top of the pretreatment filter cylinder 102; a motor A201 fixedly installed at the left side of the auxiliary positioning seat 2; the rotating shaft of the motor A201 fixedly connected to the left side of a U-shaped frame 202; the U-shaped frame 202 rotatably connected to the middle part of the auxiliary positioning seat 2; the middle protrusion of the U-shaped frame 202 rotatably connected to the upper part of a transmission arm 203; the transmission arm 203 located at the lower middle part of the auxiliary positioning seat 2; the bottom part of the transmission arm 203 rotatably connected to the top part of a reciprocating moving plate 204; the reciprocating moving plate 204... 4. A sliding connection is made inside the lower part of the auxiliary positioning seat 2. The bottom middle position of the reciprocating moving plate 204 is fixedly connected to the top middle position of the motor B205. A transmission frame 206 is fixedly installed below the motor B205. The transmission frame 206 is located inside the pretreatment filter cylinder 102. The bottom position of the rotating shaft of the motor B205 is fixedly connected to the top middle position of the spiral mixing frame 207. The spiral mixing frame 207 is located inside the upper part of the pretreatment filter cylinder 102. The bottom middle position of the spiral mixing frame 207 is fixedly connected to the top middle position of the auxiliary sleeve 209. A bevel gear rotating rod 210 is sleeved and rotated at the bottom position of the auxiliary sleeve 209. Conical spirals 211 are provided at both ends of the bevel gear rotating rod 210. A gear ring seat 208 is provided at the bottom position of the transmission frame 206. The bevel gear rotating rod 210 meshes with the bottom position of the gear ring seat 208.

[0028] The spiral mixing frame 207 is located in the middle of the transmission frame 206, and the bottom of the spiral mixing frame 207 passes through the middle of the toothed ring seat 208. The toothed ring seat 208 is located in the lower middle of the pretreatment filter cartridge 102.

[0029] The pretreatment filter cartridge 102 is provided with a feed pipe 103 at the upper rear end, and the instrument frame body 1 is provided with a waste material storage tank 105 inside. The waste material storage tank 105 is connected to the bottom of the pretreatment filter cartridge 102 through a valve. The instrument frame body 1 is located in front of the disc mill frame 3. The reaction tank 101 is provided with a transfer connection valve 104 at the front end, and the waste material storage tank 105 is provided with an external discharge valve 106 at the rear end.

[0030] Among them, a barrel-shaped processing box 301 is installed above the grinding frame 3. The rear end of the barrel-shaped processing box 301 is connected to the front end of the transfer connection valve 104. A motor C302 is fixedly installed at the middle of the left and right sides of the barrel-shaped processing box 301. A pneumatic telescopic component 303 is fixedly installed at the shaft of each motor C302. The two pneumatic telescopic components 303 are symmetrically designed, and a chuck adjustment frame 304 is fixedly installed on the inner side of each pneumatic telescopic component 303.

[0031] Two chuck adjustment frames 304 are symmetrically distributed on the left and right sides inside the barrel-shaped machining box 301. A motor D305 is fixedly installed on the edge of the chuck adjustment frame 304. A chuck bevel gear 306 is fixedly installed on the shaft of the motor D305. The chuck bevel gear 306 is located inside the chuck adjustment frame 304. A chuck bevel gear ring 307 is rotatably connected to the middle of the chuck bevel gear 306. The chuck bevel gear ring 307 meshes with the chuck bevel gear 306. The inner side of the chuck bevel gear ring 307 is provided with spiral patterns.

[0032] Each chuck adjustment frame 304 has three sliding grooves on its inner side, and a chuck moving claw 308 is slidably connected in each sliding groove. The outer side of the chuck moving claw 308 is provided with arc-shaped patterns. The arc-shaped pattern of the chuck bevel gear ring 307 engages with the spiral pattern of the chuck bevel gear ring 307. A workpiece locking frame 4 is fixedly installed on the inner side of each chuck moving claw 308.

[0033] The workpiece locking frame 4 has two L-shaped workpiece positioning jaws 402 slidably connected inside. The two workpiece positioning jaws 402 are symmetrically distributed, and each of the two workpiece positioning jaws 402 has a threaded hole at the middle of its side. The threaded holes of the two workpiece positioning jaws 402 are designed in opposite directions. A bidirectional screw 401 is rotatably connected inside the middle of the workpiece locking frame 4. The two ends of the bidirectional screw 401 pass through the threaded holes of the two workpiece positioning jaws 402 respectively.

[0034] Among them, two workpiece positioning jaws 402 clamp the grinding plate workpiece 403, and three grinding plate workpieces 403 are distributed in a ring on the inner side of each chuck adjustment frame 304. Each grinding plate workpiece 403 has a clamping groove on the outer side and a semi-fan-shaped design on the inner side.

[0035] When using: The pulp raw material and biological enzyme preparation are fed into the pretreatment filter cylinder 102 through the feed pipe 103 at the rear end of the pretreatment filter cylinder 102 in a ratio of raw material: enzyme solution = 10:1. The motor B205 is started, and the motor B205 drives the spiral mixing frame 207 to rotate, which initially stirs the raw material and enzyme solution. At the same time, the auxiliary sleeve 209 at the bottom of the spiral mixing frame 207 drives the bevel gear rotating rod 210 to rotate. The conical spirals 211 at both ends of the bevel gear rotating rod 210 rotate synchronously to disperse the raw material in the lower part of the pretreatment filter cylinder 102. The mixing and dispersion of raw materials can be transmitted by a single motor B205, which achieves an energy-saving effect.

[0036] Start motor A201, which drives U-shaped frame 202 to rotate inside auxiliary positioning seat 2. U-shaped frame 202 pulls reciprocating moving plate 204 up and down along the slide groove of auxiliary positioning seat 2 via transmission arm 203. Reciprocating moving plate 204 drives motor B205, transmission frame 206 and spiral mixing frame 207 to move up and down, realizing the combined mixing effect of rotation stirring and up and down turning, ensuring the enzymatic hydrolysis reaction is complete.

[0037] Impurity separation and slurry transfer: After the pretreatment reaction is completed, keep motor B205 running so that the conical auger 211 continues to rotate. Then open transfer connection valve 104. Transfer connection valve 104 transfers the pre-filtered raw material that has entered the reaction tank 101 to the barrel-shaped processing box 301 of the disc mill frame 3 and closes transfer connection valve 104. Next, slowly open the valve connecting the bottom of the pretreatment filter cartridge 102 to the impurity storage tank 105. Impurities in the raw material inside the pretreatment filter cartridge 102 are pushed into the interior of the impurity storage tank 105 by the conical auger 211 for temporary storage and collection. Open the external discharge valve 106 at the rear end of the impurity storage tank 105 to discharge the impurities inside the impurity storage tank 105, making it convenient to clean the interior of the pretreatment filter cartridge 102.

[0038] When the pre-treated slurry is transported to the barrel-shaped processing box 301 through the transfer connection valve 104 and a high-consistency grinding operation is required, the motors C302 on the left and right sides of the barrel-shaped processing box 301 are started respectively. The two motors C302 rotate in opposite directions. At this time, the motors C302 drive the pneumatic telescopic component 303 and the chuck adjustment frame 304 to rotate, which in turn drives the grinding plate workpiece 403 to rotate at high speed, grinding the fiber slurry in the barrel-shaped processing box 301. By extending and adjusting the two pneumatic telescopic components 303, the distance between the workpiece locking frames 4 on both sides is adjusted, which facilitates the adjustment of the distance position of the grinding plate workpiece 403 set on the workpiece locking frames 4 on both sides.

[0039] After starting the motor D305, the chuck bevel gear 306 drives the chuck bevel gear ring 307 to rotate. The arc-shaped groove of the chuck bevel gear ring 307 meshes with the spiral groove of the chuck bevel gear ring 307. A workpiece locking frame 4 is fixedly installed on the inner side of each chuck moving claw 308, so that the three workpiece locking frames 4 on the same side can be extended or retracted to adjust their positions, reducing the blind spot during processing inside the barrel-shaped processing box 301.

[0040] When the grinding disc workpiece 403 experiences low processing efficiency, rotating the bidirectional screw 401 causes the two workpiece positioning jaws 402 to move synchronously in opposite directions, allowing the more worn grinding disc workpiece 403 to be removed and replaced. Compared to traditional circular grinding discs, the grinding disc workpiece 403 of this invention has a semi-fan-shaped structure design. After assembly, the three grinding disc workpieces 403 on one side together form a circular area, which matches the three grinding disc workpieces 403 on the opposite side, saving costs during replacement and making installation convenient.

[0041] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. The scope of protection of this disclosure shall be determined by the scope of the claims.

Claims

1. A low energy pulp preparation device, characterized in that, Include: The instrument rack body (1); The inside upper position of the instrument rack body (1) is fixedly installed with a reaction tank (101), a pretreatment filter cartridge (102) is arranged at the inside position of the reaction tank (101), the pretreatment filter cartridge (102) penetrates the inside position of the reaction tank (101), an auxiliary positioning seat (2) is fixedly installed at the top position of the pretreatment filter cartridge (102), a motor A (201) is fixedly installed at the left side position of the auxiliary positioning seat (2), the rotating shaft of the motor A (201) is fixedly connected with the left side position of a U-shaped frame (202), the U-shaped frame (202) is rotatably connected at the inside middle position of the auxiliary positioning seat (2), the middle protruding position of the U-shaped frame (202) is rotatably connected with the upper position of a transmission arm (203), the transmission arm (203) is located at the inside middle and lower position of the auxiliary positioning seat (2), the bottom position of the transmission arm (203) is rotatably connected with the top position of a reciprocating moving plate (204), the reciprocating moving plate (204) is slidably connected at the inside lower position of the auxiliary positioning seat (2), the bottom middle position of the reciprocating moving plate (204) is fixedly connected with the top middle position of a motor B (205), a transmission frame (206) is fixedly installed at the lower position of the motor B (205), the transmission frame (206) is located at the inside position of the pretreatment filter cartridge (102), the rotating shaft bottom position of the motor B (205) is fixedly connected with the top middle position of a spiral mixing frame (207), the spiral mixing frame (207) is located at the inside upper position of the pretreatment filter cartridge (102), the bottom middle position of the spiral mixing frame (207) is fixedly connected with the top middle position of an auxiliary sleeve (209), a bevel gear rotating rod (210) is rotatably sleeved at the bottom position of the auxiliary sleeve (209), the left and right two end positions of the bevel gear rotating rod (210) are both provided with a bevel spiral device (211), a gear ring seat (208) is arranged at the bottom position of the transmission frame (206), and the bevel gear rotating rod (210) meshes with the bottom position of the gear ring seat (208).

2. A low energy pulp preparation apparatus as claimed in claim 1, wherein: The spiral mixing frame (207) is located at the inside middle position of the transmission frame (206), the bottom position of the spiral mixing frame (207) penetrates the middle position of the gear ring seat (208), and the gear ring seat (208) is located at the inside middle and lower position of the pretreatment filter cartridge (102).

3. The low energy pulp preparation device of claim 1, wherein: The rear end upper position of the pretreatment filter cartridge (102) is provided with a feeding pipe (103), the inside position of the instrument rack body (1) is provided with a sundry reserve tank (105), the sundry reserve tank (105) is connected with the bottom position of the pretreatment filter cartridge (102) through a valve, the instrument rack body (1) is located at the front position of a disc mill frame (3), the front end position of the reaction tank (101) is provided with a transfer connection valve (104), and the rear end position of the sundry reserve tank (105) is provided with an external discharge valve (106).

4. A low energy pulp preparation apparatus as claimed in claim 3, wherein: The upper position of the disc mill frame (3) is provided with a barrel-shaped processing box (301), the rear end position of the barrel-shaped processing box (301) is connected with the front end position of the transfer connection valve (104), the middle positions of the left and right sides of the barrel-shaped processing box (301) are respectively fixedly provided with a motor C (302), the rotating shaft positions of each motor C (302) are fixedly provided with a pneumatic telescopic piece (303), the two pneumatic telescopic pieces (303) are designed in a symmetrical manner, and the inner side positions of each pneumatic telescopic piece (303) are fixedly provided with a chuck adjusting frame (304).

5. A low energy pulp preparation device as claimed in claim 4, characterized in that: The two chuck adjusting frames (304) are symmetrically distributed at the left and right side positions inside the barrel-shaped processing box (301), the edge positions of the chuck adjusting frames (304) are fixedly provided with a motor D (305), the rotating shaft of the motor D (305) is fixedly provided with a chuck bevel gear (306), and the chuck bevel gear (306) is located at the inner position of the chuck adjusting frame (304).

6. A low energy pulp preparation device as claimed in claim 5, characterized in that: The inner middle position of the chuck bevel gear (306) is rotatably connected with a chuck bevel gear ring (307), the chuck bevel gear ring (307) is engaged with the chuck bevel gear (306), and the inner side position of the chuck bevel gear ring (307) is provided with a spiral thread.

7. A low energy pulp preparation device as claimed in claim 6, characterized in that The inner side position of each chuck adjusting frame (304) is provided with three sliding grooves, and each sliding groove is slidably connected with a chuck moving claw (308), the outer side position of the chuck moving claw (308) is provided with an arc-shaped thread, the arc-shaped thread position of the chuck bevel gear ring (307) is engaged with the spiral thread of the chuck bevel gear ring (307), and the inner side position of each chuck moving claw (308) is fixedly provided with a workpiece locking frame (4).

8. A low energy pulp preparation device as claimed in claim 7, characterized in that: The inner position of the workpiece locking frame (4) is slidably connected with two L-shaped workpiece positioning clamping jaws (402), the two workpiece positioning clamping jaws (402) are symmetrically distributed, and the middle positions of the side surfaces of the two workpiece positioning clamping jaws (402) are provided with threaded holes.

9. A low energy pulp preparation device as claimed in claim 8, characterized in that: The threaded holes of the two workpiece positioning clamping jaws (402) are designed in a reverse manner, the inner middle position of the workpiece locking frame (4) is rotatably connected with a bidirectional screw rod (401), and the two end positions of the bidirectional screw rod (401) pass through the threaded hole positions of the two workpiece positioning clamping jaws (402) respectively.

10. A low energy pulp preparation apparatus as claimed in claim 9, wherein: The two workpiece positioning clamping jaws (402) clamp the grinding disc plate workpiece (403), the inner side position of each chuck adjusting frame (304) is annularly provided with three grinding disc plate workpieces (403), the outer side position of each grinding disc plate workpiece (403) is provided with a clamping groove, and the inner side position is designed in a half-fan shape.

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