A benzethonium chloride raw material crushing and grinding device

Abstract

The invention discloses an ultrapure benzethonium chloride raw material crushing and grinding device, relates to the technical field of benzethonium chloride raw material production, comprises a grinding barrel and a crushing port arranged on the upper part of the grinding barrel, and also comprises: a shell body, the shell body is arranged outside the grinding barrel, the interior of the shell body is separated into a sinking cavity and a flow rate cavity by a partition plate, the flow rate cavity and the inner cavity of the grinding barrel are connected by a guide channel; a circulation pipe, the lower end of the circulation pipe is plugged into the shell body, the upper part of the circulation pipe is connected with a conveying pipe, the other end of the conveying pipe extends to the crushing port, and an axial flow fan is arranged inside the conveying pipe; a filter element is arranged at the bottom of the circulation pipe; the invention sucks dust generated during grinding in the grinding barrel through the guide channel, and discharges it to the top of the crushing roller after filtering, so as to generate a downward suction at the crushing port, and finally form a circulating air flow direction, which greatly reduces the escape of dust, improves the crushing continuity, and is more environmentally friendly.

Description

Technical Field

[0001] The invention relates to the technical field of benzethonium chloride raw material production, in particular to a benzethonium chloride raw material crushing and grinding device. Background Art

[0002] Benzethonium chloride is a new type of cationic surfactant, which is easily soluble in water to form a foamy soapy solution and has been widely used as a daily chemical additive. Benzethonium chloride also has good bactericidal and antiseptic effects. As a new generation of detergents, bactericides and preservatives, it has been widely used in the medical field. When preparing benzethonium chloride, 2-[4-(2,4,4-trimethylpentane-2-yl)phenoxy]ethyl-1-ol and 1,2-dichloroethane are used as starting materials to prepare 1-[2-(2-chloroethoxy)ethoxy]-4-(2,4,4-trimethylpentane-2-yl)benzene; then N,N-dimethylbenzylamine is mixed to obtain the product benzethonium chloride, which is then heated to 80°C, refluxed, and then gradually cooled, and then vacuum filtered. After filtration, the filter cake is washed with ethyl acetate, and the filter cake needs to be dried and crushed to obtain benzethonium chloride powder.

[0003] At present, two types of crushing equipment are generally used for filter cake crushing, open type and sealed type. The open type has strong continuity and can be crushed uninterruptedly, but dust will escape during the crushing, which not only causes waste of raw materials, but also the escaped raw materials are not good for the environment. The sealed type has almost no loss of raw materials, but it cannot be produced continuously, and it takes a lot of time to discharge the materials, which reduces the production efficiency. Summary of the invention

[0004] The object of the present invention is to provide a benzethonium chloride raw material crushing and grinding device to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a benzethonium chloride raw material crushing and grinding device, comprising a grinding barrel and a crushing port arranged on the upper part of the grinding barrel, and also comprising:

[0006] A shell, the shell is arranged outside the grinding barrel, the interior of the shell is separated into a sinking chamber and a flow rate chamber by a partition plate, and the flow rate chamber and the inner cavity of the grinding barrel are connected by a flow guide channel;

[0007] A circulation pipe, the lower end of which is plugged into the shell, the upper part of which is connected to a delivery pipe, the other end of which extends to the crushing port, and an axial flow fan is arranged inside the delivery pipe;

[0008] A filter element is arranged at the bottom of the circulation pipe;

[0009] A cleaning structure is used to clean the lower surface of the filter element, and includes a central shaft, a scraper and a self-locking component. The central shaft is arranged inside the circulation pipe, and the scraper is fixedly installed on the central shaft. The filter element has a first position and a second position. In the first position, the central shaft rotates so that the scraper scrapes the lower surface of the filter element. In the second position, the self-locking component passively releases the lock on the height of the central shaft, and the central shaft moves upward so that the scraper knocks on the filter element.

[0010] Preferably, it also includes crushing rollers, and at least one pair of crushing rollers are rotatably arranged in the crushing port.

[0011] Preferably, it comprises a grinding part, which comprises a motor, a cutter disc and crushing blades, wherein the motor is fixedly mounted on the lower part of the grinding barrel, the cutter disc is rotatably connected to the output shaft of the motor, and a plurality of crushing blades are evenly mounted on the cutter disc.

[0012] Preferably, it includes a discharge part, which includes a first pipe, a second pipe and a material pump, one end of the first pipe is connected to the material pump, the other end of the first pipe is connected to the grinding barrel, one end of the second pipe is connected to the sinking chamber, and the other end of the second pipe is connected to the first pipe.

[0013] Preferably, the cleaning structure also includes a shaft, fan blades, a prism, a disc, and a first elastic member, the shaft is rotatably connected in the circulation pipe, the fan blades are fixedly mounted on the shaft, the prism is fixedly mounted on the lower part of the shaft, the prism is slidably inserted in the central shaft, the disc is fixedly mounted on the central shaft, and the first elastic member is movably sleeved on the outside of the central shaft.

[0014] Preferably, the self-locking assembly includes a trigger rod, a limit rod, a second elastic member and a bevel hole, the trigger rod is slidably connected to the inner wall of the circulation pipe, the limit rod is horizontally inserted into the circulation pipe, the upper end of the trigger rod extends into the bevel hole, and the second elastic member is arranged at the end of the limit rod.

[0015] Preferably, in the first position, one end of the limiting rod is located on the upward movement path of the disc.

[0016] Preferably, after the air flux of the filter element decreases, the filter element will move up to the second position. During the upward movement of the filter element, the trigger rod will be driven upward synchronously. When the trigger rod moves upward, the limit rod will be driven away from the disc, and the center axis will be unlocked, so that the scraper can knock on the filter element.

[0017] Preferably, the central axis and the prism can only slide and displace in the vertical direction.

[0018] Preferably, the upper air outlet of the conveying pipe is located above the crushing roller.

[0019] In the above technical scheme, the present invention provides a benzethonium chloride raw material crushing and grinding device, which can suck the dust generated during grinding in the grinding barrel through the guide channel, and the clean air is re-discharged to the top of the crushing roller through the setting of the filter element. Since the air pressure in the grinding barrel is small, a downward suction force will inevitably be generated at the crushing port, and the dust generated when the broken roller is crushed is sucked into the grinding barrel. In this way, a circulating air flow can be formed, which greatly reduces the escape of dust, has high continuity, improves efficiency, and is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of a benzethonium chloride raw material crushing and grinding device of the present invention;

[0022] Figure 2 It is a front view of a benzethonium chloride raw material crushing and grinding device of the present invention;

[0023] Figure 3 A benzethonium chloride raw material crushing and grinding device of the present invention Figure 1 The enlarged schematic diagram of point A in the middle;

[0024] Figure 4 It is a schematic diagram of the cleaning structure of a benzethonium chloride raw material crushing and grinding device in the first position of the present invention;

[0025] Figure 5 The invention relates to an accessory of a benzethonium chloride raw material crushing and grinding device. Figure 4 The schematic diagram of the structure after the enlargement of B in the middle;

[0026] Figure 6 It is a structural schematic diagram of a filter element of a benzethonium chloride raw material crushing and grinding device of the present invention during upward movement;

[0027] Figure 7 The invention relates to an accessory of a benzethonium chloride raw material crushing and grinding device. Figure 6 The enlarged schematic diagram of the middle C;

[0028] Figure 8 It is a schematic diagram of the cleaning structure of a benzethonium chloride raw material crushing and grinding device in the second position of the present invention;

[0029] Fig. 9 A schematic diagram of a cleaning structure after unlocking the self-locking component of a benzethonium chloride raw material crushing and grinding device of the present invention;

[0030] Fig.10 The present invention is a schematic diagram of the structure of a conveying pipe of a benzethonium chloride raw material crushing and grinding device.

[0031] Explanation of the reference numerals: 1. grinding barrel; 2. crushing port; 21. crushing roller; 3. grinding part; 31. motor; 32. knife disc; 33. crushing blade; 4. discharge part; 41. first pipeline; 411. isolation net; 42. second pipeline; 43. material pump; 5. shell; 51. sinking cavity; 6. partition plate; 61. flow guide channel; 62. flow velocity cavity; 7. cleaning structure; 71. shaft; 711. fan blade; 72. prism; 73. central axis; 731. scraper; 74. disc; 75. first elastic part; 77. trigger rod; 78. limit rod; 781. bevel hole; 79. second elastic part; 8. circulation pipe; 9. filter element; 10. conveying pipe; 101. axial flow fan. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] See also Figure 1-10 The embodiment of the present invention provides a benzethonium chloride raw material crushing and grinding device, comprising a grinding barrel 1 and a crushing port 2 arranged on the upper part of the grinding barrel 1, and further comprising:

[0034] A shell 5, wherein the shell 5 is disposed outside the grinding barrel 1, and the interior of the shell 5 is separated into a sinking chamber 51 and a flow rate chamber 62 by a partition plate 6, and the flow rate chamber 62 is connected to the inner cavity of the grinding barrel 1 through a flow guide 61;

[0035] A circulation pipe 8, the lower end of which is plugged into the housing 5, the upper part of which is connected to a delivery pipe 10, the other end of which extends to the pulverizing port 2, and an axial flow fan 101 is disposed inside the delivery pipe 10;

[0036] A filter element 9 is arranged at the bottom of the circulation pipe 8;

[0037] The cleaning structure 7 is used to clean the lower surface of the filter element 9, and includes a central shaft 73, a scraper 731 and a self-locking assembly. The central shaft 73 is arranged inside the circulation pipe 8, and the scraper 731 is fixedly mounted on the central shaft 73. The filter element 9 has a first position and a second position. In the first position, the central shaft 73 rotates so that the scraper 731 scrapes the lower surface of the filter element 9. In the second position, the self-locking assembly passively releases the lock on the height of the central shaft 73, and the central shaft 73 moves upward so that the scraper 731 knocks on the filter element 9.

[0038] The filter cake is initially crushed at the crushing port 2, and the particles formed after the crushing will fall into the grinding barrel 1, and then be crushed again in the grinding barrel 1 to form a powder. The guide channel 61 is arranged in the grinding barrel 1, and the dust generated in the grinding barrel 1 will be sucked into the shell 5. The dust flows into the sinking chamber 51 after passing through the flow velocity chamber 62. At this time, the space increases and the flow velocity decreases. A part of the dust will be deposited in the sinking chamber 51, and the remaining part will flow to the circulation pipe 8 with the air flow. The filter element 9 is arranged to filter the dust in the air flow hole so that the dust is intercepted, and the clean air will be transported to the conveying pipe 10. The upper end air outlet of the conveying pipe 10 is arranged at the crushing port 2, and the crushing port 2 has a downward suction, so that the dust generated during the crushing is sucked into the grinding barrel 1, so that a circulating air flow direction can be formed, which greatly reduces the escape of dust, improves efficiency, and meets environmental protection requirements.

[0039] Inevitably, during the working process, a part of the dust will adhere to the lower surface of the filter element 9, thereby causing a decrease in air flow. Therefore, the cleaning structure 7 is used to clean the attachments of the filter element 9. During the operation of the equipment, the central shaft 73 will rotate. The rotation of the central shaft 73 can drive the scraper 731 to scrape the lower surface of the filter element 9 to reduce the attachments and ensure the ventilation volume of the filter element 9.

[0040] After a long period of use, even with the cleaning of the scraper 731, the air flux of the filter element 9 will still decrease. Therefore, the flux decreases to avoid increasing the pressure difference in the sinking chamber 51 and the circulation pipe 8. At this time, the filter element 9 will move up. During the upward movement, the filter element 9 unlocks the self-locking component. After the self-locking component is unlocked, the center axis 73 will move up quickly, causing the scraper 731 to hit the filter element 9. In this way, the residual attachments on the filter element 9 can be shaken off, thereby improving the cleaning effect of the filter element 9.

[0041] In the embodiments of the present invention, please refer to Figure 2 , further comprising crushing rollers 21, at least one pair of crushing rollers 21 being rotatably disposed in the crushing port 2. The upper air outlet of the conveying pipe 10 is located above the crushing rollers 21.

[0042] The raw material can be preliminarily crushed by a pair of crushing rollers 21 so that the raw material can smoothly fall into the grinding barrel 1. In this way, the air of the conveying pipe 10 is conveyed to the top of the crushing roller 21 to form a downward air flow channel to absorb the dust generated by the crushing roller 21 during crushing and reduce the generation of escape.

[0043] In the embodiment of the present invention, please refer to Figure 1, including a grinding part 3, the grinding part 3 includes a motor 31, a cutter disc 32 and a crushing blade 33, the motor 31 is fixedly installed at the lower part of the grinding barrel 1, the cutter disc 32 is rotatably connected to the output shaft of the motor 31, and a plurality of crushing blades 33 are evenly installed on the cutter disc 32.

[0044] The rotation of the motor 31 can drive a plurality of crushing blades 33 to rotate rapidly, so as to perform a secondary crushing and grinding on the material dropped into the grinding barrel 1 .

[0045] In the embodiments of the present invention, please refer to Figure 1 , including a discharging part 4, which includes a first pipe 41, a second pipe 42 and a material pump 43, one end of the first pipe 41 is connected to the material pump 43, the other end of the first pipe 41 is connected to the grinding barrel 1, one end of the second pipe 42 is connected to the sinking cavity 51, and the other end of the second pipe 42 is connected to the first pipe 41.

[0046] When the material pump 43 is turned on, negative pressure can be generated at the first pipe 41 and the second pipe 42, so that the powder stored in the grinding barrel 1 and the sinking cavity 51 will be sucked and transported to the storage container through the material pump 43. An isolation net 411 is arranged on the upper part of the first pipe 41. The isolation net 411 isolates large particles to prevent incompletely crushed powder from flowing out. The crushing blade 33 can also clean the isolation net 411 during the rotation process to prevent the isolation net 411 from being blocked.

[0047] In the embodiments of the present invention, please refer to Figure 4-9 The cleaning structure 7 also includes a shaft 71, a fan blade 711, a prism 72, a disc 74, and a first elastic member 75. The shaft 71 is rotatably connected to the circulation pipe 8, the fan blade 711 is fixedly mounted on the shaft 71, the prism 72 is fixedly mounted on the lower part of the shaft 71, the prism 72 is slidably inserted in the central shaft 73, the disc 74 is fixedly mounted on the central shaft 73, and the first elastic member 75 is movably sleeved on the outside of the central shaft 73.

[0048] In the first position, an axial flow fan 101 is arranged in the delivery pipe 10. The axial flow fan 101 can extract the air in the circulation pipe 8 and deliver it to the crushing port 2 through the delivery pipe 10. When the air flows in the circulation pipe 8, the fan blades 711 are driven to rotate. When the fan blades 711 rotate, the shaft rod 71 is driven to rotate. The shaft rod 71 and the central axis 73 are connected by a prism 72. In this way, the central axis 73 rotates synchronously. The central axis 73 can move the scraper 731 to scrape the lower surface of the filter element 9. In this way, the filter element 9 is cleaned. As the use time increases, the flux of the filter element 9 will decrease, and the filter element 9 will inevitably move upward. The filter element 9 moves upward to the position as shown in the attached figure. Figure 6 As shown, at this time, the filter element 9 moves upward, and the first elastic member 75 squeezes the disc 74 synchronously, so that the disc 74 moves upward synchronously, the central shaft 73 moves upward, and the prism 72 continues to be inserted into the central shaft 73, so that when the filter element 9 moves a small distance, the scraper 731 still maintains a fitting state with it, so as to ensure the cleaning effect of the scraper 731 on the filter element 9. After the flux of the filter element 9 decreases, the filter element 9 moves upward to the second position, and the trigger rod 77 moves upward synchronously during the upward movement of the filter element 9. When the trigger rod 77 moves upward, it drives the limit rod 78 away from the disc 74, and the central shaft 73 is unlocked, so that the scraper 731 knocks the filter element 9.

[0049] In the embodiments of the present invention, please refer to Figure 4-9 The self-locking assembly includes a trigger rod 77, a limit rod 78, a second elastic member 79 and a bevel hole 781. The trigger rod 77 is slidably connected to the inner wall of the circulation pipe 8, the limit rod 78 is horizontally inserted into the circulation pipe 8, the upper end of the trigger rod 77 extends into the bevel hole 781, and the second elastic member 79 is arranged at the end of the limit rod 78.

[0050] As the flux of the filter element 9 continues to decrease, the filter element 9 continues to move upward until the disc 74 contacts the limit rod 78. The disc 74 and the central axis 73 cannot continue to move upward due to the limit rod 78. Under the action of the negative pressure, the filter element 9 continues to squeeze the first elastic element 75. The filter element 9 continues to move upward until the disc 74 contacts the limit rod 78. Figure 8 As shown, at this time, the filter element 9 and the trigger rod 77 are in contact, and the filter element 9 continues to move upward, which can drive the trigger rod 77 to move upward synchronously. The upward movement of the trigger rod 77 will be inserted into the inclined hole 781, and the limit rod 78 will be squeezed by the trigger rod 77, and the limit rod 78 will be displaced in the direction away from the disk 74. In this way, the limit rod 78 will be separated from the disk 74. After the disk 74 loses its restriction, it will be driven by the rebound force of the first elastic member 75 to drive the central shaft 73 to move upward rapidly. In this way, the rapid upward movement of the central shaft 73 will drive the scraper 731 to impact the filter element 9. When impacted, the residual attachments on the filter element 9 will be detached to achieve cleaning of the filter element 9; after the flux of the filter element 9 increases, the pressure difference between the circulation pipe 8 and the sinking chamber 51 decreases, and the filter element 9 moves downward at this time. The synchronous trigger rod 77 will also move downward under the action of gravity, and the second elastic member 79 will rebound, so that the limit rod 78 is reset.

[0051] In the embodiment of the present invention, in the first position, one end of the limiting rod 78 is located on the upward movement path of the disc 74. By setting the limiting rod 78 on the movement path of the disc 74, the disc 74 can be limited when it moves upward to achieve separation of the scraper 731 and the filter element 9.

[0052] In the embodiment of the present invention, the central shaft 73 and the prism 72 can only slide in the vertical direction. The prism 72 and the central shaft 73 cannot be separated, so as to ensure that the central shaft 73 is always connected to the prism 72 and the transmission is carried out smoothly.

[0053] In another embodiment of the present invention, a large amount of floating powder will inevitably be generated during the high-speed grinding process of the crushing blade 33. The powder will be transported to the sinking chamber 51 during the airflow circulation process, and the dust will be deposited in the sinking chamber 51. The powder that can be carried by the airflow must be small particles. In this way, the powder is taken out of the grinding barrel 1, which first avoids excessive grinding and also avoids the excessive temperature of the grinding barrel 1 caused by continuous grinding of a large amount of powder. Through the circulation of air, the powder is passively separated, so that the powder in the grinding barrel 1 is reduced, which is helpful for heat dissipation and cooling in the grinding barrel 1. The reduction of powder is helpful for the grinding of granular materials and improves the grinding efficiency.

[0054] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A benzethonium chloride raw material crushing and grinding device, comprising a grinding barrel (1) and a crushing port (2) arranged on the upper part of the grinding barrel (1), characterized in that: Also includes: A shell (5), the shell (5) being arranged outside the grinding barrel (1), the interior of the shell (5) being separated into a sinking chamber (51) and a flow rate chamber (62) by a partition plate (6), the flow rate chamber (62) being connected to the inner chamber of the grinding barrel (1) via a flow guide channel (61); a circulation pipe (8), the lower end of the circulation pipe (8) being plugged into the interior of the housing (5), the upper part of the circulation pipe (8) being connected to a conveying pipe (10), the other end of the conveying pipe (10) extending to the pulverizing port (2), and an axial flow fan (101) being arranged inside the conveying pipe (10); A filter element (9) disposed at the bottom of the circulation pipe (8); A cleaning structure (7) for cleaning the lower surface of a filter element (9), comprising a central shaft (73), a scraper (731) and a self-locking assembly, wherein the central shaft (73) is arranged inside a circulation pipe (8), the scraper (731) is fixedly mounted on the central shaft (73), and the filter element (9) has a first position and a second position. In the first position, the central shaft (73) rotates so that the scraper (731) scrapes the lower surface of the filter element (9); in the second position, the self-locking assembly passively releases the lock on the height of the central shaft (73), and the central shaft (73) moves upward, so that the scraper (731) knocks the filter element (9); Crushing rollers (21), at least one pair of crushing rollers (21) rotatably disposed in the crushing opening (2); A grinding part (3), the grinding part (3) comprising a motor (31), a cutter disc (32) and crushing blades (33), the motor (31) being fixedly mounted on the lower part of the grinding barrel (1), the cutter disc (32) being rotatably connected to an output shaft of the motor (31), and a plurality of crushing blades (33) being evenly mounted on the cutter disc (32); It comprises a material discharge portion (4), which comprises a first pipe (41), a second pipe (42) and a material pump (43), one end of the first pipe (41) is connected to the material pump (43), the other end of the first pipe (41) is connected to the grinding barrel (1), one end of the second pipe (42) is connected to the sinking chamber (51), and the other end of the second pipe (42) is connected to the first pipe (41); The cleaning structure (7) further comprises a shaft (71), a fan blade (711), a prism (72), a disc (74), and a first elastic member (75); the shaft (71) is rotatably connected to the circulation pipe (8); the fan blade (711) is fixedly mounted on the shaft (71); the prism (72) is fixedly mounted on the lower part of the shaft (71); the prism (72) is slidably inserted in the central shaft (73); the disc (74) is fixedly mounted on the central shaft (73); and the first elastic member (75) is movably sleeved on the outside of the central shaft (73); The self-locking assembly comprises a trigger rod (77), a limit rod (78), a second elastic member (79) and a bevel hole (781); the trigger rod (77) is slidably connected to the inner wall of the circulation pipe (8); the limit rod (78) is horizontally plugged into the circulation pipe (8); the upper end of the trigger rod (77) extends into the bevel hole (781); and the second elastic member (79) is arranged at the end of the limit rod (78); When in the first position, the air in the circulation pipe (8) flows, driving the fan blades (711) to rotate. When the fan blades (711) rotate, the shaft (71) is driven to rotate. The shaft (71) and the central shaft (73) are connected via a prism (72). In this way, the central shaft (73) rotates synchronously, and the central shaft (73) can drive the scraper (731) to scrape the lower surface of the filter element (9). When in the first position, one end of the limiting rod (78) is located on the upward movement path of the disc (74); After the air flux of the filter element (9) decreases, the filter element (9) moves up to the second position. During the upward movement of the filter element (9), the trigger rod (77) is simultaneously driven to move up. When the trigger rod (77) moves up, the limit rod (78) is driven away from the disc (74), and the central shaft (73) is unlocked, so that the scraper (731) strikes the filter element (9); Under the action of the pressure difference between the sinking chamber (51) and the circulation pipe (8), the filter element (9) moves up to the second position, the filter element (9) contacts the trigger rod (77), the trigger rod (77) moves up and inserts into the inclined hole (781), and is squeezed by the trigger rod (77), so that the limit rod (78) moves in a direction away from the disc (74), and the limit rod (78) separates from the disc (74). After the disc (74) loses its restriction, it is acted upon by the rebound force of the first elastic member (75), which drives the central shaft (73) to move up. The upward movement of the central shaft (73) drives the scraper (731) to impact the filter element (9). When impacted, the attachments remaining on the filter element (9) are detached, so that the filter element (9) is cleaned.

2. A benzethonium chloride raw material crushing and grinding device according to claim 1, characterized in that, The central axis (73) and the prism (72) can only slide and displace in the vertical direction.

3. A benzethonium chloride raw material crushing and grinding device according to claim 1, characterized in that, The upper air outlet of the conveying pipe (10) is located above the crushing roller (21).

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