Viscosity reducer production and preparation device and preparation method

Abstract

The invention relates to the technical field of viscosity reducer preparation, and discloses a viscosity reducer production and preparation device and method.The viscosity reducer production and preparation device comprises a base, a grinding cylinder arranged at the top of the base, a feeding pipe arranged on the outer side of the grinding cylinder and a machining unit arranged in the grinding cylinder; the machining unit comprises a bearing disc arranged on the bottom wall of the inner side of the grinding cylinder. According to the viscosity reducer production and preparation device, the multiple grinding assemblies are arranged, two sets of grinding wheels are arranged in the grinding assemblies, in this way, grinding of talc is divided into multiple sections, grinding of the talc is not continuous any more, meanwhile, airflow flows upwards from the lower portions of the grinding assemblies, qualified ground talc powder is extracted out in advance, and the quality of the talc powder is improved. Excessive grinding caused by repeated grinding is avoided, the qualification rate of talcum powder can be increased, unqualified talcum powder can be continuously ground, redundant operation is not needed, and the working efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of viscosity reducer production and preparation, and in particular to a viscosity reducer production and preparation device and a preparation method. Background Art

[0002] Viscosity reducers are chemical additives that can reduce the viscosity of materials. Their mechanism of action can be roughly as follows: uniform dispersion of particles in the material; viscosity reducer molecules can form a lubricating film between particles or molecules to reduce friction resistance and make the material flow more easily; and destroy the intermolecular forces of high-viscosity materials. Viscosity reducers can be used in the petroleum industry, coating industry, ink industry, adhesive industry, and ceramic industry.

[0003] According to their production raw materials and production processes, viscosity reducers can be divided into surfactant viscosity reducers, polymer viscosity reducers, solvent viscosity reducers, and inorganic viscosity reducers. Commonly used inorganic viscosity reducers include talcum powder. Talc powder is widely used in the ceramic industry. Talc powder has a flaky structure, good lubricity and dispersibility, and can effectively reduce the viscosity of the substance and improve the stability and fluidity of the system.

[0004] In the patent application with the patent publication number CN115846019A, a talc grinding device with a regrinding function is disclosed, including a talc grinding device body, a first feed port is provided on one side of the upper end of the talc grinding device body, a crushing device is connected to the upper end of the first feed port by a fixing screw, a grinding device is installed in the middle of the top of the talc grinding device body, the grinding device is placed in the lower end of the inner part of the talc grinding device body and is connected to a vibrating ball milling device, a vibrating screen device is provided at the lower end of the vibrating ball milling device, and a discharge barrel is embedded in one side of the vibrating screen device placed in the talc grinding device body. The above invention can avoid the operation of crushing talc in advance by installing a crushing device at the first feed port provided on the talc grinding device body, and avoids the operation of crushing talc in advance, thereby accelerating the grinding efficiency and avoiding the need to crush talc in advance.

[0005] The prior art has the following defects:

[0006] In order to fully grind the talc powder, the production and preparation equipment generally has a long grinding path. After a long time of grinding, the talc produces qualified talc powder. However, due to the different particle sizes of talc, and some of the differences are large, and the talc is not evenly broken when it is crushed, in the above situation, some talc may have become qualified talc powder, and some talc particles are still large and need to be further ground. In this way, if the grinding is stopped, a large amount of talc will need to be reworked, affecting work efficiency. If the grinding is continued, a large amount of talc will be over-ground and the quality will be affected. Summary of the invention

[0007] In view of the problem that some talc powder is over-grinded in the prior art, a viscosity reducing agent production preparation device and preparation method are proposed.

[0008] The present application provides a viscosity reducing agent production and preparation device and a preparation method, the purpose of which is to make the ground talcum powder within the standard range.

[0009] The technical solution of the present invention is: a viscosity reducing agent production and preparation device, comprising a base, a grinding cylinder arranged on the top of the base, a feeding pipe arranged on the outside of the grinding cylinder, and a processing unit arranged inside the grinding cylinder, wherein the processing unit comprises a receiving plate arranged on the inner bottom wall of the grinding cylinder, a driving motor arranged on the top of the receiving plate, a grinding assembly arranged inside the grinding cylinder, and a filter cover and a discharge pipe rotatably installed on the top of the grinding cylinder;

[0010] The grinding assembly specifically includes a grinding sleeve arranged on the inner wall of the grinding cylinder, two grinding grooves opened on the inner wall of the grinding sleeve, a top plate, an upper connecting seat, a middle plate, a lower connecting seat, and a bottom plate arranged on the inner side of the grinding sleeve, and a grinding wheel rotatably connected to the upper and lower sides of the middle plate;

[0011] The filter cover extends to the interior of the grinding cylinder, the exhaust pipe covers the top of the filter cover, the number of grinding assemblies is not less than two, connecting columns are installed between adjacent grinding assemblies, the grinding groove, top plate, upper connecting seat, middle plate, lower connecting seat, and bottom plate are distributed in sequence from top to bottom, the grinding wheels surround both sides of the upper connecting seat and the lower connecting seat and are distributed in a circular array, the grinding wheels extend into the grinding groove, and one end of the feeding pipe located in the grinding cylinder extends to above the center of the top plate;

[0012] The processing unit further includes a ventilation assembly, which specifically includes a hollow base arranged on the top of the receiving plate, an external overflow port arranged on the outside of the hollow base, and an external air pipe arranged on the bottom of the grinding cylinder;

[0013] The driving motor is placed on the top of the hollow base, the external air pipe is connected to the hollow base, and the external air pipe is externally connected to the blowing device.

[0014] Furthermore, the edge of the top plate on the side opposite to the middle plate and the edge of the bottom plate on the side opposite to the middle plate both extend into the grinding groove until they extend to the opening of the grinding groove.

[0015] Furthermore, the top of the receiving tray is configured as a trapezoidal groove.

[0016] Furthermore, a fixing ring is arranged on the outer side of the grinding cylinder, the top of the shell cover contacts with the fixing ring, and the bottom of the shell cover contacts with the base.

[0017] Furthermore, the ventilation assembly also includes a flow diversion channel opened at the bottom of the receiving plate, a vent, a powder inlet and a powder outlet opened on the outside of the grinding cylinder, and a shell cover wrapped around the outside of the grinding cylinder;

[0018] The vent corresponds to the diversion channel, the powder inlet is located above the top slope of the receiving plate, the powder outlet is located above the grinding assembly, and the shell covers the vent, the powder inlet and the powder outlet.

[0019] Furthermore, the ventilation assembly also includes a communication port opened on the inner wall of the grinding tank, and a partition net clamped at the opening of the communication port;

[0020] The communication port passes through the grinding sleeve and extends to the outside of the grinding cylinder. An empty space is reserved below the grinding wheel. The communication port and the empty space are located in the same horizontal plane.

[0021] Furthermore, the ventilation component also includes a through hole opened at the bottom of the base plate, and the through hole extends upward, wherein the through hole in the uppermost grinding component extends to the bottom of the upper connecting seat, and the through holes inside other external air pipes extend to the top of the top plate. The bottom of the upper connecting seat and the lower connecting seat are both provided with a connecting groove, one end of the connecting groove extends to the outside of the lower connecting seat, and the other end is connected to the through hole.

[0022] Furthermore, the connecting groove and the vacant space are located on the same horizontal plane.

[0023] A method for producing a viscosity reducing agent, using a viscosity reducing agent production and preparation device, comprises the following steps:

[0024] Step 1: Ore selection: conduct extensive geological surveys to determine the talc-rich ore source, and select high-quality talc ore with high talc content and few impurities as the raw material for producing stain reducers;

[0025] Step 2: Screening of ore, turning over the ore, and removing foreign matter and debris mixed in the ore;

[0026] Step 3: Crushing of ore: using a jaw crusher to perform primary crushing of large pieces of talc ore; sending the ore after primary crushing to the production and preparation device to obtain finished talc powder;

[0027] Step 4: Surface treatment of talcum powder. Surface treatment of talcum powder can be performed using chemical reagents to improve its surface properties, enhance the stain reduction effect and compatibility with other materials.

[0028] Beneficial effects of the present invention:

[0029] 1. By setting a plurality of grinding components, and two sets of grinding wheels in the grinding components, the grinding of talc is divided into multiple sections, so that the grinding of talc is no longer continuous. At the same time, there is an upward airflow below the grinding component. After the talc powder that meets the standards appears during the grinding of the talc, the talc powder drifts upward with the airflow and is finally discharged through the filter cover and the discharge pipe, while the talc that does not meet the standards continues to be ground downward by the grinding wheel below. In this way, the talc powder that meets the standards is extracted in advance, and excessive grinding caused by repeated grinding is avoided, which is beneficial to improving the qualified rate of talc powder. At the same time, the talc that does not meet the standards can continue to be ground without unnecessary operations, which is beneficial to improving work efficiency.

[0030] 2. By extending the edge of the side opposite to the top plate and the side opposite to the middle plate, and the edge of the side opposite to the bottom plate and the middle plate into the grinding groove until they reach the opening of the grinding groove, the talc will be guided into the grinding groove when it flows through the material discharge gap, and will be crushed and ground by the grinding wheel. This will lengthen the path and time for the talc to pass through the grinding wheel, reducing the possibility of the talc sliding down and not contacting the rotating grinding wheel, so that the piston can be fully ground.

[0031] 3. By setting a discharge port for each grinding trough, the talc is crushed by the grinding wheel and slides down along the inner wall of the grinding trough. Qualified talc powder enters the connecting port through the partition, and other talc continues to slide down to be ground. The air flowing in the shell cover sucks out the talc powder in the connecting port and then blows it to the surroundings of the filter cover. In this way, the qualified talc powder can be discharged in time, and the discharge process is not affected by the grinding wheel, making the production and processing of talc powder smoother and the qualified rate of finished products higher.

[0032] 4. By setting through holes and connecting grooves, the airflow discharged from the overflow port is distributed through the through holes and flows into various connecting grooves, so that the connecting groove blows a stream of air horizontally toward the partition net, assisting qualified talcum powder to enter the connecting port, and then enter the shell cover, making the separation of qualified talcum powder smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A three-dimensional diagram of a production and preparation device for a viscosity reducing agent according to the present invention;

[0034] Figure 2 This is a disassembly diagram of the housing of the present invention;

[0035] Figure 3 It is a schematic diagram of the grinding cylinder of the present invention;

[0036] Figure 4 This is a schematic diagram of the interior of the grinding cylinder of the present invention;

[0037] Figure 5 This is a disassembled diagram of the processing unit of the present invention;

[0038] Figure 6 This is a disassembled diagram of the grinding assembly of the present invention;

[0039] Figure 7 This is an assembly diagram of the grinding assembly of the present invention from an upper perspective;

[0040] Figure 8 This is an assembly diagram of the grinding assembly of the present invention from the bottom perspective;

[0041] Fig. 9 A top view of the present invention;

[0042] Fig.10 For the present invention Fig. 9 Enlarged view of the middle AA;

[0043] Fig.11 For the present invention Fig.10 Magnified view of the internal grinding components.

[0044] In the figure:

[0045] 1. Base; 2. Grinding cylinder; 3. Feeding pipe; 4. Processing unit; 41. Receiving plate; 42. Driving motor; 43. Grinding assembly; 431. Grinding sleeve; 432. Grinding groove; 433. Top plate; 443. Upper connecting seat; 435. Middle plate; 436. Lower connecting seat; 437. Bottom plate; 438. Grinding wheel; 5. Ventilation assembly; 51. Hollow base; 52. Overflow port; 53. External air pipe; 54. Diversion channel; 55. Ventilation port; 56. Powder inlet; 57. Powder outlet; 58. Shell cover; 59. Connecting port; 510. Partition net; 511. Through hole; 512. Connecting groove; 6. Filter cover; 7. Discharge pipe. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0047] Example 1, reference Figure 1-11 , which is the first embodiment of the present invention, provides a viscosity reducing agent production and preparation device, including a base 1, a grinding cylinder 2 arranged on the top of the base 1, a feeding pipe 3 arranged on the outside of the grinding cylinder 2, and a processing unit 4 arranged inside the grinding cylinder 2. The processing unit 4 includes a receiving plate 41 arranged on the inner bottom wall of the grinding cylinder 2, a driving motor 42 arranged on the top of the receiving plate 41, a grinding assembly 43 arranged inside the grinding cylinder 2, and a filter cover 6 and a discharge pipe 7 rotatably installed on the top of the grinding cylinder 2.

[0048] The grinding assembly 43 specifically includes a grinding sleeve 431 arranged on the inner wall of the grinding cylinder 2, two grinding grooves 432 opened on the inner wall of the grinding sleeve 431, a top plate 433, an upper connecting seat 443, a middle plate 435, a lower connecting seat 436, and a bottom plate 437 arranged on the inner side of the grinding sleeve 431, and a grinding wheel 438 rotatably connected to the upper and lower sides of the middle plate 435.

[0049] Specifically, the grinding cylinder 2 is fixed to the base 1 by bolts, the filter cover 6 extends to the inside of the grinding cylinder 2, the discharge pipe 7 covers the top of the filter cover 6 and is fixed to the grinding cylinder 2 by bolts, the other end of the discharge pipe 7 is connected to the collection box, the receiving plate 41 is placed on the inner bottom of the grinding cylinder 2 and fixed by bolts, the grinding assembly 43 is located above the receiving plate 41, the number of grinding assemblies 43 is not less than two, connecting columns are installed between adjacent grinding assemblies 43, the top of the grinding sleeve 431 is set as an inclined surface inclined toward the center, the grinding groove 432, the top plate 433, the upper connecting seat 443, the middle plate 435, the lower connecting seat 436, and the bottom plate 437 are distributed in sequence from top to bottom, the grinding wheels 438 surround both sides of the upper connecting seat 443 and the lower connecting seat 436, and are distributed in a circular array, and the grinding wheels 43 8 extends into the grinding groove 432, the top plate 433 and the upper connecting seat 443 are fixed by bolts distributed in a circumferential array, the bottom plate 437 and the bottom plate 437 are fixed by bolts distributed in a circumferential array, and bolts are set at the center of the upper connecting seat 443, the middle plate 435 and the lower connecting seat 436 to fix the three, the surface of the top plate 433 is interspersed with rotating columns extending into the middle plate 435, and the surface of the bottom plate 437 is also interspersed with rotating columns extending into the middle plate 435, and the grinding wheel 438 is rotatably installed on the outside of the rotating columns, and a material discharge gap is reserved between the outer walls of the top plate 433, the middle plate 435, and the bottom plate 437 and the inner wall of the grinding sleeve 431, and one end of the feeding pipe 3 located in the grinding cylinder 2 extends to above the center of the top plate 433, and the top of the receiving plate 41 is set as a trapezoidal groove.

[0050] The processing unit 4 further includes a ventilation assembly 5 , which specifically includes a hollow base 51 disposed on the top of the receiving plate 41 , an external overflow port 52 disposed on the outside of the hollow base 51 , and an external air pipe 53 disposed on the bottom of the grinding cylinder 2 .

[0051] The hollow base 51 and the receiving plate 41 are integrally formed, and the driving motor 42 is placed on the top of the hollow base 51 and fixed by bolts. The external overflow port 52 is distributed in a circular array around the outer wall of the hollow base 51. The external air pipe 53 is connected to the hollow base 51. The external air pipe 53 is connected to an external blowing device. The displacement of the blowing device is adjusted according to the target particle size of the talcum powder produced. When the talc is ground into talc powder that meets the standards, the talc powder will be blown up by the airflow discharged by the blowing device and float with it.

[0052] By setting up multiple grinding components 43, and two groups of grinding wheels 438 are set in the grinding components 43, the grinding of talc is divided into multiple sections, so that the grinding of talc is no longer continuous. At the same time, there is an upward airflow below the grinding component 43. After talc powder that meets the standards appears during the talc grinding, the talc powder floats upward with the airflow and is finally discharged through the filter cover 6 and the discharge pipe 7. The talc that does not meet the standards continues to be ground downward by the grinding wheel 438 below. In this way, the qualified talc powder can be extracted in advance to avoid excessive grinding caused by repeated grinding, which is beneficial to the qualified rate of talc powder. At the same time, the talc that does not meet the standards can continue to be ground without unnecessary operations, which is beneficial to improving work efficiency.

[0053] Before processing, the number of grinding assemblies 43 to be assembled can be selected according to the grinding requirements of the talcum powder. If the talcum powder particles are required to be large, the number of grinding assemblies 43 to be installed can be reduced. If the talcum powder particles are required to be small, the number of grinding assemblies 43 to be installed can be increased.

[0054] Example 2, reference Figure 1-11 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that the edge of the top plate 433 on the side opposite to the middle plate 435 and the edge of the bottom plate 437 on the side opposite to the middle plate 435 both extend into the grinding groove 432 until they reach the opening of the grinding groove 432. In this way, when the talc flows through the material discharge gap, it will be guided into the grinding groove 432 and be crushed and ground by the grinding wheel 438. This will lengthen the path and time for the talc to pass through the grinding wheel 438, reduce the possibility of the talc sliding down and being misaligned and not in contact with the rotating grinding wheel 438, and allow the piston to be fully ground.

[0055] After adopting the above design, the connectivity of the upward airflow in the feeding gap is affected and no longer smooth, and the entrainment effect of talcum powder is also reduced, so the following design is made.

[0056] The ventilation assembly 5 also includes a diversion channel 54 opened at the bottom of the receiving plate 41, an air vent 55, a powder inlet 56 and a powder outlet 57 opened on the outside of the grinding cylinder 2, a shell cover 58 wrapped around the outside of the grinding cylinder 2, a connecting port 59 opened on the inner wall of the grinding groove 432, and a partition net 510 clamped at the opening of the connecting port 59.

[0057] Specifically, the air vent 55 corresponds to the diversion channel 54, the powder inlet 56 is located above the top slope of the receiving plate 41, and the powder outlet 57 is located above the grinding assembly 43. The shell cover 58 covers and wraps the air vent 55, the powder inlet 56, and the powder outlet 57. The shell cover 58 is divided into two parts from the center and fixed with bolts. A sealing gasket is provided on the contact surface between the shell cover 58 and the grinding cylinder 2, and a fixing ring is provided on the outer side of the grinding cylinder 2. The top of the shell cover 58 contacts the fixing ring, and the bottom contacts the base 1.

[0058] The communication opening 59 passes through the grinding sleeve 431 and extends to the outside of the grinding cylinder 2. The communication opening 59 is distributed in a circular array. An empty space is reserved below the grinding wheel 438. The communication opening 59 and the empty space are located on the same horizontal plane.

[0059] By providing a discharge port for each grinding groove 432, the talc is crushed by the grinding wheel 438 and slides down along the inner wall of the grinding groove 432. Qualified talc powder passes through the partition 510 and enters the connecting port 59, while other talc continues to slide downward to be ground. The air flowing in the shell cover 58 sucks out the talc powder in the connecting port 59 and then blows it to the surroundings of the filter cover 6. In this way, the talc powder that has passed the grinding can be discharged in time, and the discharge process is not affected by the grinding wheel 438, so that the production and processing of talc powder is smoother and the qualified rate of finished products is higher.

[0060] Specifically, the ventilation component 5 also includes a through hole 511 opened at the bottom of the base plate 437, and the through hole 511 extends upward, wherein the through hole 511 in the uppermost grinding component 43 extends to the bottom of the upper connecting seat 443, and the through holes 511 inside other external air pipes 53 penetrate to the top of the top plate 433. The bottom of the upper connecting seat 443 and the lower connecting seat 436 are both provided with a connecting groove 512, one end of the connecting groove 512 extends to the outside of the lower connecting seat 436, and the other end is connected to the through hole 511, and the connecting groove 512 and the vacant interval are located on the same horizontal plane.

[0061] By setting the through hole 511 and the connecting groove 512, the airflow discharged from the overflow port 52 is distributed through the through hole 511 and flows into the connecting grooves 512 at various locations, so that the connecting grooves 512 blow a stream of air horizontally toward the partition net 510, which assists the qualified talcum powder to enter the connecting port 59 and then enter the shell cover 58, making the separation of the qualified talcum powder smoother.

[0062] Embodiment 3 is the third embodiment of the present invention, which provides: a method for producing a viscosity reducer, using a viscosity reducer production and preparation device, comprising the following steps:

[0063] Step 1: Ore selection. Conduct extensive geological surveys to determine the talc-rich ore sources, and select high-quality talc ore with high talc content and few impurities as the raw material for producing stain reducers. Sampling and analysis of talc ores from different sources to test their talc content, chemical composition, mineral composition and other indicators to ensure that the selected ore meets the production requirements. It is required to accurately determine the composition and structure of the ore through technical means such as X-ray fluorescence spectroscopy analysis (XRF) and X-ray diffraction analysis (XRD).

[0064] Step 2: Screening of ore, turning over the ore, and removing foreign matter and debris mixed in the ore.

[0065] Step 3: Crushing of ore: Use jaw crusher to crush large pieces of talc ore. Jaw crusher has the advantages of simple structure, reliable operation and large crushing ratio, and can crush ore into smaller pieces. The ore after primary crushing is sent to the production preparation device to obtain finished talc powder.

[0066] Step 4: Surface treatment of talcum powder. Surface treatment of talcum powder can be performed using chemical reagents to improve its surface properties, enhance the stain reduction effect and compatibility with other materials.

[0067] The chemical reagent may be a silane coupling agent, a titanate coupling agent, or a surfactant.

[0068] Choose the right silane coupling agent: According to the application field and performance requirements of talc, select a silane coupling agent with a specific functional group. For example, for talc used for plastic reinforcement, you can choose a silane coupling agent containing amino, vinyl and other functional groups to improve the compatibility and bonding between talc and the plastic matrix.

[0069] Treatment process: Add talcum powder into a solution containing a silane coupling agent, and allow the silane coupling agent to fully contact and react with the surface of the talcum powder through stirring and heating. The reaction temperature is generally around 65 degrees Celsius, and the reaction time depends on the specific situation, usually 2 hours. After the reaction is completed, the treated talcum powder is filtered, washed and dried to remove unreacted silane coupling agent and impurities.

[0070] Effect evaluation: The treated talc is characterized by infrared spectroscopy FTIR, thermogravimetric analysis TGA and other technical means to analyze the grafting of silane coupling agents on the surface of talc and its thermal stability; at the same time, the effect of silane coupling agent treatment is evaluated by testing the dispersibility, mechanical properties and other indicators of the treated talc in plastics, rubber and other materials.

[0071] Coupling agent selection: Select a suitable titanate coupling agent based on the properties of talc and application requirements; for example, for talc used in coatings, a titanate coupling agent containing a long-chain alkyl group can be selected to improve the dispersibility and stability of talc in coatings.

[0072] Treatment process: Mix talcum powder and titanate coupling agent in an organic solvent, such as ethanol, toluene, etc. Promote the adsorption and reaction of the coupling agent on the surface of talcum powder by stirring, ultrasound, etc. The reaction temperature is generally around 45°C and the reaction time is 1.5 hours; after the reaction, the treated talcum powder is filtered, washed and dried to remove the organic solvent and unreacted coupling agent.

[0073] Performance test: Scanning electron microscopy (SEM) and contact angle measurement were used to observe the surface morphology and wettability of the treated talc powder. At the same time, the viscosity, hiding power, water resistance and other performance indicators of the treated talc powder in the coating were tested to evaluate the effect of the titanate coupling agent treatment.

[0074] Selection of surfactant types: Choose the appropriate surfactant according to the application system and performance requirements of talc. For example, for talc used in water-based systems, you can choose anionic or non-ionic surfactants, such as sodium lauryl sulfate, fatty alcohol polyoxyethylene ether, etc. For oily systems, you can choose cationic or non-ionic surfactants, such as hexadecyl trimethylammonium bromide, sorbitan oleate, etc.

[0075] Treatment method: Add talcum powder to a solution containing a surfactant, and adsorb the surfactant on the surface of the talcum powder by stirring, ultrasound, etc. The treatment temperature and time depend on the nature and concentration of the surfactant. Generally speaking, the temperature is around 40°C and the time is 0.8 hours; after treatment, the talcum powder is filtered, washed and dried to remove excess surfactant.

[0076] Effect analysis: By measuring the surface tension, Zeta potential and other parameters of the treated talc, the adsorption and stability of the surfactant on the surface of the talc are evaluated. At the same time, the dispersibility, stability and other performance indicators of the treated talc in the corresponding system are tested to determine the effect of the surfactant treatment.

[0077] Based on Examples 1-2, the working principle of a viscosity reducing agent production and preparation device of the present invention is as follows:

[0078] Start the air blowing device so that it blows air into the grinding cylinder 2 through the external air pipe 53. After the airflow enters the diversion channel 54, part of it flows out from the external overflow port 52, and part of it flows into the shell cover 58 from the vent port 55. The airflow entering the shell cover 58 goes up through the powder inlet 56 and the connecting port 59, and then returns to the grinding cylinder 2 from the powder outlet 57. Part of the airflow flowing out of the external overflow port 52 enters the shell cover 58 from the powder inlet 56, and part of it flows upward from the through hole 511. The air entering the through hole 511 flows out through the connecting grooves 512 at various locations, blows horizontally from the bottom of the grinding wheel 438 to the partition net 510, and then passes through the partition net 510 and flows into the shell cover 58 through the connecting port 59. At the same time, when the airflow flows from bottom to top in the shell cover 58, due to its fast air flow rate, it will generate a certain suction force on the inside of the connecting port 59 when passing through the connecting port 59.

[0079] Then, the talc is put into the grinding cylinder 2 through the feeding pipe 3, and the driving motor 42 is turned on. The driving motor 42 drives the grinding assembly 43 to rotate, and the bottom plate 437, the lower connecting seat 436, the middle plate 435, the upper connecting seat 443, and the top plate 433 rotate synchronously, and the grinding wheel 438 also rotates around the central axis of the top plate 433. When the talc falls above the top plate 433, the rotating top plate 433 pushes the talc on its top to the surroundings through centrifugal force. When the talc reaches the feeding gap, it slides down from the feeding gap. The talc first enters the grinding groove 432 of the first layer, and the rotating grinding wheel 438 rolls over the surface of the talc to press the talc into fragments of different sizes. During the process, some talc will be crushed into qualified talc powder, and there will be fine and qualified talc powder at the fracture of the talc when it is crushed. There will also be a large number of large particles of talc. These powders and stones will slide down along the inner wall of the grinding groove 432. When passing through the surface of the partition 510, the qualified talc powder will pass through the partition 510 and enter the connecting port 59 under the influence of gravity and horizontal airflow. The connecting port 59 has a suction force at one end and a blowing force at the other end, so that the talc powder inside the connecting port 59 flows into the shell cover 58 with the airflow, and goes up with the airflow inside the shell cover 58, passes through the powder outlet 57 and is blown to the outside of the filter cover 6, and finally the talc powder passes through the filter cover 6 and is discharged through the discharge pipe 7.

[0080] Large particles of talc cannot pass through the partition 510, and thus continue to flow down along the material discharge gap, and then repeat the above-mentioned crushing steps. Some talc powder that clumps together due to moisture cannot be completely crushed by the grinding wheel 438, nor can it pass through the partition 510, and finally falls into the receiving tray 41. The continuous flow of air in the receiving tray 41 will gradually dry the talc powder, and then enter the shell cover 58 from the powder inlet 56.

[0081] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A viscosity reducing agent production and preparation device, comprising a base (1), a grinding cylinder (2) arranged on the top of the base (1), a feeding pipe (3) arranged outside the grinding cylinder (2), and a processing unit (4) arranged inside the grinding cylinder (2), characterized in that: The processing unit (4) comprises a receiving plate (41) arranged on the inner bottom wall of the grinding cylinder (2), a driving motor (42) arranged on the top of the receiving plate (41), a grinding assembly (43) arranged inside the grinding cylinder (2), a filter cover (6) and a discharge pipe (7) rotatably mounted on the top of the grinding cylinder (2); The grinding assembly (43) specifically comprises a grinding sleeve (431) arranged on the inner wall of the grinding cylinder (2), two grinding grooves (432) opened on the inner wall of the grinding sleeve (431), a top plate (433), an upper connecting seat (443), a middle plate (435), a lower connecting seat (436), and a bottom plate (437) arranged on the inner side of the grinding sleeve (431), and a grinding wheel (438) rotatably connected to the upper and lower sides of the middle plate (435); The filter cover (6) extends to the interior of the grinding cylinder (2), the discharge pipe (7) covers the top of the filter cover (6), the number of grinding components (43) is not less than two, and connecting columns are installed between adjacent grinding components (43). The grinding groove (432), the top plate (433), the upper connecting seat (443), the middle plate (435), the lower connecting seat (436), and the bottom plate (437) are arranged in sequence from top to bottom. The grinding wheels (438) surround both sides of the upper connecting seat (443) and the lower connecting seat (436) and are arranged in a circular array. The grinding wheels (438) extend into the grinding groove (432), and one end of the feeding pipe (3) located in the grinding cylinder (2) extends to above the center of the top plate (433); The processing unit (4) further comprises a ventilation assembly (5), the ventilation assembly (5) specifically comprising a hollow base (51) arranged on the top of the receiving plate (41), an external overflow port (52) arranged on the outside of the hollow base (51), and an external air pipe (53) arranged on the bottom of the grinding cylinder (2); The driving motor (42) is placed on the top of the hollow base (51), and the external air pipe (53) is connected to the hollow base (51), and the external air pipe (53) is externally connected to the blowing device.

2. The viscosity reducing agent production and preparation device according to claim 1, characterized in that: The edge of the top plate (433) on the side opposite to the middle plate (435) and the edge of the bottom plate (437) on the side opposite to the middle plate (435) both extend into the grinding groove (432) until they extend to the opening of the grinding groove (432).

3. The viscosity reducing agent production and preparation device according to claim 2, characterized in that: The top of the receiving plate (41) is arranged as a trapezoidal groove.

4. The viscosity reducing agent production and preparation device according to claim 3, characterized in that: The ventilation assembly (5) further comprises a flow distribution channel (54) provided at the bottom of the receiving plate (41), a vent (55), a powder inlet (56) and a powder outlet (57) provided at the outside of the grinding cylinder (2), and a shell cover (58) wrapped around the outside of the grinding cylinder (2); The vent (55) corresponds to the diversion channel (54), the powder inlet (56) is located above the top slope of the receiving plate (41), the powder outlet (57) is located above the grinding assembly (43), and the shell cover (58) covers and wraps the vent (55), the powder inlet (56), and the powder outlet (57).

5. The viscosity reducing agent production and preparation device according to claim 4, characterized in that: A fixing ring is arranged on the outer side of the grinding cylinder (2), the top of the shell cover (58) contacts the fixing ring, and the bottom contacts the base (1).

6. The viscosity reducing agent production and preparation device according to claim 5, characterized in that: The ventilation assembly (5) further comprises a communication port (59) formed on the inner wall of the grinding groove (432), and a partition net (510) clamped at the opening of the communication port (59); The communication port (59) passes through the grinding sleeve (431) and extends to the outside of the grinding cylinder (2). An empty space is reserved below the grinding wheel (438). The communication port (59) and the empty space are located on the same horizontal plane.

7. The viscosity reducing agent production and preparation device according to claim 6, characterized in that: The ventilation assembly (5) also includes a through hole (511) opened at the bottom of the base plate (437), and the through hole (511) extends upward, wherein the through hole (511) in the uppermost grinding assembly (43) extends to the bottom of the upper connecting seat (443), and the through holes (511) inside other external air pipes (53) penetrate to the top of the top plate (433), and the bottom of the upper connecting seat (443) and the lower connecting seat (436) are both provided with a connecting groove (512), one end of the connecting groove (512) extends to the outside of the lower connecting seat (436), and the other end is connected to the through hole (511).

8. The viscosity reducing agent production and preparation device according to claim 7, characterized in that: The connecting groove (512) and the vacant space are located on the same horizontal plane.

9. A method for producing a viscosity reducer, using the viscosity reducer production and preparation device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Ore selection: conduct extensive geological surveys to determine the talc-rich ore source, and select high-quality talc ore with high talc content and few impurities as the raw material for producing stain reducers; Step 2: Screening of ore, turning over the ore, and removing foreign matter and debris mixed in the ore; Step 3: Crushing of ore: using a jaw crusher to perform primary crushing of large pieces of talc ore; sending the ore after primary crushing to the production and preparation device to obtain finished talc powder; Step 4: Surface treatment of talcum powder. Surface treatment of talcum powder can be performed using chemical reagents to improve its surface properties, enhance the stain reduction effect and compatibility with other materials.

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