CN109650361B - Phosphorus pentoxide solid grinding device - Google Patents

Phosphorus pentoxide solid grinding device Download PDF

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Publication number
CN109650361B
CN109650361B CN201910045162.XA CN201910045162A CN109650361B CN 109650361 B CN109650361 B CN 109650361B CN 201910045162 A CN201910045162 A CN 201910045162A CN 109650361 B CN109650361 B CN 109650361B
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China
Prior art keywords
grinding
phosphorus pentoxide
chamber
motor
pentoxide solid
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CN201910045162.XA
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Chinese (zh)
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CN109650361A (en
Inventor
周剑
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ANHUI LONGHUA CHEMICAL Co.,Ltd.
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Wenzhou Puruida Machinery Technology Co ltd
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Priority to CN201910045162.XA priority Critical patent/CN109650361B/en
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    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00Phosphorus; Compounds thereof
    • C01B25/12Oxides of phosphorus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00Other disintegrating devices or methods
    • B02C19/10Mills in which a friction block is towed along the surface of a cylindrical or annular member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165Screen denying egress of oversize material

Abstract

The invention provides a phosphorus pentoxide solid grinding device which comprises a base, a machine body, a control switch, a collecting box, a cover plate, a roasting chamber, a guide plate, a heating wire, a guide rail, a moving motor, a baffle plate, a grinding chamber, a limiting block, a connecting layer, a sieve layer, a servo motor, a connecting rod, a grinding disc, a vibrating motor, a connecting shaft and a collecting disc, wherein the connecting rod is connected with the grinding chamber; the top fixed mounting of base has the fuselage, and the right side fixed mounting of fuselage has control switch, and the bottom embedding on the positive surface of fuselage is provided with collects the box, and the top embedding of fuselage is provided with the apron, and the inside top fixed mounting of fuselage has the roasting chamber. In the process of grinding the phosphorus pentoxide, the invention firstly carries out dehumidification operation to remove the phosphorus pentoxide solid and water molecules in the device, thereby preventing the phosphorus pentoxide solid from deteriorating due to the absorption of the water molecules in the air in the grinding process, and being capable of quickly crushing and grinding the phosphorus pentoxide solid, thereby enhancing the practicability of the device.

Description

Phosphorus pentoxide solid grinding device
Technical Field
The invention relates to the technical field of phosphorus pentoxide grinding, in particular to a phosphorus pentoxide solid grinding device.
Background
Phosphorus pentoxide is a commonly used raw material and reagent in the chemical industry, mostly as a desiccant for gases and liquids. Currently, the industrial preparation of phosphorus pentoxide generally adopts an oxidation combustion method: taking yellow phosphorus as a raw material, heating and melting the yellow phosphorus, adding the yellow phosphorus into a combustion furnace, introducing air subjected to drying treatment into the combustion furnace to react and combust with the yellow phosphorus to generate phosphorus pentoxide flue gas, cooling the phosphorus pentoxide flue gas to prepare a finished phosphorus pentoxide product, and grinding the finished phosphorus pentoxide product by using a grinding device to obtain a finished phosphorus pentoxide powder product.
Through patent retrieval, the invention with the prior patent number of CN201110191382.7 discloses a spherical mineral chlorine-free drying agent, which has the technical scheme that the spherical mineral chlorine-free drying agent consists of red bentonite, dolomite attapulgite clay, bauxite, sulfuric acid, high-viscosity attapulgite clay powder and sodium aluminate. The production method of the spherical mineral chlorine-free drying agent comprises the following steps: mixing red bentonite, dolomite attapulgite clay and bauxite, acidizing, tabletting and airing, stirring and mixing with sodium aluminate and high-viscosity attapulgite clay powder, grinding, granulating, roasting and screening, and packaging to obtain the spherical mineral chlorine-free drying agent. The chlorine-free drying agent for spherical mineral has the advantages of large static water adsorption capacity, no chlorine, no toxicity, no odor, no contact corrosivity and no environmental pollution. The spherical mineral chlorine-free drying agent is suitable for being placed in various packaging bags, and is suitable for preventing instruments, electrical equipment, electronic products, medicines, foods, textiles, leather, shoes, clothes and other various packaging articles from being affected with damp, mildewed or rusted.
Based on the above-mentioned description to and combine the equipment discovery among the prior art, current device is in the in-process of carrying out processing to the drier, all need carry out the crocus operation to the drier, but the design of current a lot of crocus devices is not reasonable, the drier is at the in-process of grinding, because the moisture-absorbing characteristic of drier, lead to its hydrone that can initiatively absorb in the air, cause the drier rotten, and the grinding speed of many devices is slow, inefficiency, therefore this design is directed against above-mentioned problem, design a rational in infrastructure, and functional good crocus device, in order to improve the practicality.
Disclosure of Invention
The invention aims to provide a phosphorus pentoxide solid grinding device, which solves the problems that the existing drying agent can absorb water molecules in air in the grinding process to cause deterioration of the drying agent, the grinding speed is low and the efficiency is low.
The invention relates to a phosphorus pentoxide solid grinding device, which is realized by the following specific technical means:
a phosphorus pentoxide solid grinding device comprises a base, a machine body, a control switch, a collecting box, a cover plate, a roasting chamber, a guide plate, heating wires, guide rails, a moving motor, a baffle plate, a grinding chamber, a limiting block, a connecting layer, a sieve layer, a servo motor, a connecting rod, a grinding disc, a vibrating motor, a connecting shaft and a collecting disc, wherein the machine body is provided with a plurality of grooves; the machine body is fixedly arranged above the base, a control switch is fixedly arranged on the right side of the machine body, a collecting box is embedded into the bottom of the front surface of the machine body, a cover plate is embedded into the top of the machine body, a roasting chamber is fixedly arranged on the upper portion inside the machine body, a guide plate is embedded into the roasting chamber, a heating wire is fixedly arranged on the outer side of the guide plate, a guide rail is fixedly arranged on the right side below the roasting chamber, a moving motor is movably connected into the guide rail, a baffle is fixedly arranged on the left side of the moving motor, a grinding chamber is fixedly arranged on the lower portion inside the machine body, limit blocks are welded at the left end and the right end of the grinding chamber in a seamless mode, a connecting layer is embedded into the bottom of the grinding chamber, a screen layer is fixedly arranged below the middle of the connecting layer, and, the front end of the servo motor is connected with a connecting rod through a rotating shaft in a rotating mode, the lower portion of the connecting rod is connected with a grinding disc in a rotating mode, a vibrating motor is fixedly mounted at the left end and the right end of the bottom of the machine body, a connecting shaft is fixedly mounted above the vibrating motor, and a collecting disc is fixedly mounted between the connecting shafts.
Furthermore, the movable motor is in sliding connection with the guide rail in the horizontal direction, a bayonet is arranged on the left side of the bottom of the roasting chamber, and when the movable motor moves to the leftmost side of the guide rail, the baffle is just embedded into the bayonet.
Furthermore, a feeding port is formed in the top opening of the grinding chamber, and a discharging port in the middle of the bottom end of the roasting chamber is just above the feeding port of the grinding chamber.
Furthermore, be the symmetry setting around the middle part of grinding the room between two stoppers, and the inboard below of stopper is provided with circular-arc spacing mouth, and spacing mouth agrees with mutually with the abrasive disc.
Furthermore, the servo motor drives the connecting rod to rotate by 0-60 degrees left and right through the rotating shaft.
Further, the screen layer is matched with the grinding disc.
Furthermore, the connecting layer is matched with the grinding chamber, and the top end of the connecting shaft is fixedly connected with the connecting layer.
Furthermore, the heating wire, the moving motor, the servo motor and the vibrating motor are electrically connected with an external power supply through a control switch.
Further, the collecting tray is located right below the screen layer, and the collecting tray is located right above the middle of the collecting box.
Compared with the prior structure, the invention has the following beneficial effects:
the roasting chamber is arranged, the guide plate is embedded in the roasting chamber, the heating wire is fixedly arranged on the outer side of the guide plate, the heating wire in the roasting chamber generates heat before the device is used, the air in the roasting chamber and the air in the grinding chamber are heated and dehumidified, then the phosphorus pentoxide solid is placed in the roasting chamber through a tool, then the heating wire on the outer side of the guide plate is used for heating and dehumidifying the phosphorus pentoxide solid, the content of water molecules in the air in the device is reduced, the phosphorus pentoxide solid cannot react with the water molecules in the air in the grinding process, the connecting layer and the limiting block are arranged, the connecting layer is matched with the grinding chamber, the top end of the connecting shaft is fixedly connected with the connecting layer, the arc-shaped limiting port is arranged below the inner side of the limiting block, so that the phosphorus pentoxide solid can be ground, the servo motor drives the grinding disc to slide left through the connecting rod, grind the phosphorus pentoxide solid, the abrasive disc is through embedding to the stopper in, can with the crushing of the great piece phosphorus pentoxide solid that promotes about the abrasive disc, vibrating motor passes through the connecting axle simultaneously and acts on the vibrational force to the articulamentum for the articulamentum vibrates, thereby accelerates the speed that the phosphorus pentoxide powder dropped, makes the phosphorus pentoxide powder can not one kind block up the screen cloth layer top in the articulamentum bottom.
Drawings
FIG. 1 is a schematic view of the overall front structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the overall front structure of the present invention;
FIG. 3 is a schematic view of a partial structure of the polishing disk of the present invention;
FIG. 4 is a partial structural view of a side connection layer according to the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
in the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1-base, 2-body, 201-control switch, 202-collection box, 3-cover plate, 4-roasting chamber, 401-guide plate, 402-heating wire, 403-guide rail, 5-moving motor, 501-baffle, 6-grinding chamber, 601-limiting block, 602-connecting layer, 603-sieve layer, 7-servo motor, 701-connecting rod, 702-grinding disk, 8-vibrating motor, 801-connecting shaft and 9-collection disk.
Detailed Description
Example (b):
as shown in figures 1 to 5:
the invention provides a phosphorus pentoxide solid grinding device which comprises: the phosphorus pentoxide solid grinding device comprises a base 1, a machine body 2, a control switch 201, a collecting box 202, a cover plate 3, a roasting chamber 4, a guide plate 401, a heating wire 402, a guide rail 403, a moving motor 5, a baffle 501, a grinding chamber 6, a limiting block 601, a connecting layer 602, a sieve layer 603, a servo motor 7, a connecting rod 701, a grinding disc 702, a vibrating motor 8, a connecting shaft 801 and a collecting disc 9; a machine body 2 is fixedly arranged above the base 1, a control switch 201 is fixedly arranged on the right side of the machine body 2, a collecting box 202 is embedded in the bottom end of the front surface of the machine body 2, a cover plate 3 is embedded in the top of the machine body 2, a roasting chamber 4 is fixedly arranged on the upper portion inside the machine body 2, a guide plate 401 is embedded in the roasting chamber 4, a heating wire 402 is fixedly arranged on the outer side of the guide plate 401, a guide rail 403 is fixedly arranged on the right side below the roasting chamber 4, a moving motor 5 is movably connected in the guide rail 403, a baffle 501 is fixedly arranged on the left side of the moving motor 5, a grinding chamber 6 is fixedly arranged on the lower portion inside the machine body 2, limiting blocks 601 are welded at the left end and the right end of the grinding chamber 6 in a seamless mode, a connecting layer 602 is embedded in the bottom end of the grinding chamber 6, a sieve, the front end of the servo motor 7 is rotatably connected with a connecting rod 701 through a rotating shaft, the lower portion of the connecting rod 701 is rotatably connected with a grinding disc 702, the left end and the right end of the bottom of the machine body 2 are respectively and fixedly provided with a vibration motor 8, the upper portion of the vibration motor 8 is respectively and fixedly provided with a connecting shaft 801, and a collection disc 9 is fixedly arranged between the two connecting shafts 801.
Wherein, be horizontal direction sliding connection between mobile motor 5 and the guide rail 403, roasting chamber 4's bottom left side is provided with the bayonet socket, and mobile motor 5 removes when guide rail 403 is leftmost, baffle 501 just in time imbeds to the bayonet socket, mobile motor 5 accessible guide rail 403 drives baffle 501 and imbeds to roasting chamber 4's deflector 401 bottom, make roasting chamber 4 bottom sealed, thereby the phosphorus pentoxide solid can be saved in roasting chamber 4, the heater strip 402 of being convenient for dehumidifies the operation to it, when mobile motor drives baffle 501 and extracts from roasting chamber 4's deflector 401 bottom, the phosphorus pentoxide solid can drop in grinding chamber 6, make the device more nimble.
Wherein, the open-top of grinding chamber 6 has the pan feeding mouth, and the discharge gate in 4 bottom middle parts of roasting chamber just in time is located the top of grinding chamber 6 pan feeding mouth for the phosphorus pentoxide solid after the dehumidification can just in time drop in grinding chamber 6 inside from roasting chamber 4.
Wherein, be the symmetry setting around the middle part of grinding chamber 6 between two stopper 601, and the inboard below of stopper 601 is provided with circular-arc spacing mouth, and spacing mouth agrees with mutually with abrasive disc 702, and abrasive disc 702 is through embedding when to stopper 601, can be with the greater piece's of phosphorus pentoxide solid crushing that both ends promoted about abrasive disc 702 for the grinding speed of device is faster.
The servo motor 7 drives the connecting rod 701 to rotate by 0-60 degrees left and right through the rotating shaft, so that the servo motor 7 can drive the grinding disc 702 to shake left and right through the connecting rod 701 to repeatedly grind the phosphorus pentoxide solid.
Wherein, the screen layer 603 is fit with the grinding disc 702, so that after the phosphorus pentoxide solid falls into the screen layer 603 at the bottom end of the grinding chamber 6, the grinding disc 702 can just grind the phosphorus pentoxide solid above the screen layer 603, and the grinding effect is better.
The connecting layer 602 is fitted with the grinding chamber 6, and the top end of the connecting shaft 801 is fixedly connected with the connecting layer 602, so that the vibration motor 8 applies vibration force to the connecting layer 602 through the connecting shaft 801, the connecting layer 602 and the mesh layer 603 vibrate all the time, and the dropping speed of the phosphorus pentoxide powder from the grinding chamber 6 is increased.
Wherein, the heating wire 402, the moving motor 5, the servo motor 7 and the vibration motor 8 are electrically connected with an external power supply through the control switch 201, so that the control switch 201 can cut off or turn on the power supply of the heating wire 402, the moving motor 5, the servo motor 7 and the vibration motor 8.
Wherein the collecting tray 9 is located right below the mesh layer 603 and the collecting tray 9 is located right above the middle part of the collecting box 202, so that the phosphorus pentoxide powder passing through the mesh layer 603 can be guided by the collecting tray 9 and fall down into the collecting box 202 for storage.
The specific use mode and function of the embodiment are as follows:
in the invention, firstly, the functional integrity of the device is ensured, then, the device is connected with an external power supply, when in use, the control switch 201 is pressed to enable the heating wire 402 in the roasting chamber 4 to generate heat, the air in the roasting chamber 4 and the grinding chamber 6 is heated and dehumidified, then the control switch 201 is pressed to enable the moving motor 5 to drive the baffle plate 501 to be embedded into the bottom end of the guide plate 401 of the roasting chamber 4 through the guide rail 403, the bottom end of the roasting chamber 4 is sealed, then the cover plate 3 is opened, then the phosphorus pentoxide solid is placed in the roasting chamber 4 through a tool and tightly covers the cover plate 3, then the heating wire 402 heats and dehumidifies the phosphorus pentoxide solid, the content of water molecules in the air in the device is reduced, after the dehumidification is completed, the moving motor 5 drives the baffle plate 501 to be pulled out from the bottom end of the guide plate 401 of the roasting chamber 4 through the guide rail 403, so that the phosphorus pentoxide solid drops to grinding room 6, at this moment servo motor drives grinding disc 702 through connecting rod 701 and slides from side to side, grind the phosphorus pentoxide solid, grinding disc 702 is through embedding to stopper 601 in, can be with the larger piece of phosphorus pentoxide solid crushing that both ends promoted about grinding disc 702, vibrating motor 8 passes through connecting axle 801 and acts on vibrating force to articulamentum 602 simultaneously, make articulamentum 602 and sieve layer 603 vibrate all the time, thereby accelerate the speed that the phosphorus pentoxide powder dropped, make phosphorus pentoxide powder can not one kind jam in the sieve layer 603 top of articulamentum 602 bottom, later the phosphorus pentoxide powder drops to collecting box 202 through collecting tray 9 and stores.
In summary, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments or equivalent substitutions for some technical features, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (9)

1. The utility model provides a phosphorus pentoxide solid milling equipment which characterized in that: the phosphorus pentoxide solid grinding device comprises a base (1), a machine body (2), a control switch (201), a collecting box (202), a cover plate (3), a roasting chamber (4), a guide plate (401), a heating wire (402), a guide rail (403), a moving motor (5), a baffle plate (501), a grinding chamber (6), a limiting block (601), a connecting layer (602), a sieve layer (603), a servo motor (7), a connecting rod (701), a grinding disc (702), a vibrating motor (8), a connecting shaft (801) and a collecting disc (9); the improved roasting device is characterized in that a machine body (2) is fixedly mounted above the base (1), a control switch (201) is fixedly mounted on the right side of the machine body (2), a collecting box (202) is arranged at the bottom end of the front surface of the machine body (2) in an embedded mode, a cover plate (3) is arranged at the top of the machine body (2) in an embedded mode, a roasting chamber (4) is fixedly mounted above the interior of the machine body (2), a guide plate (401) is arranged in the interior of the roasting chamber (4) in an embedded mode, a heating wire (402) is fixedly mounted on the outer side of the guide plate (401), a guide rail (403) is fixedly mounted on the right side of the lower portion of the roasting chamber (4), a movable motor (5) is movably connected in the guide rail (403), a baffle (501) is fixedly mounted on the left side of the movable motor (5), a grinding chamber (6) is fixedly mounted on the lower, the bottom embedding of grinding room (6) is provided with articulamentum (602), the middle part below fixed mounting of articulamentum (602) has screen cloth layer (603), the middle part fixed mounting of grinding room (6) has servo motor (7), the front end of servo motor (7) is rotated through the pivot and is connected with connecting rod (701), the below of connecting rod (701) is rotated and is connected with abrasive disc (702), the equal fixed mounting in both ends has vibrating motor (8) about fuselage (2) bottom, the equal fixed mounting in top of vibrating motor (8) has connecting axle (801), two fixed mounting has collection dish (9) between connecting axle (801).
2. The phosphorus pentoxide solid milling apparatus according to claim 1, wherein: the movable motor (5) is connected with the guide rail (403) in a sliding mode in the horizontal direction, a bayonet is arranged on the left side of the bottom of the roasting chamber (4), and when the movable motor (5) moves to the leftmost side of the guide rail (403), the baffle (501) is just embedded into the bayonet.
3. The phosphorus pentoxide solid milling apparatus according to claim 1, wherein: the top opening of the grinding chamber (6) is provided with a feeding hole, and the discharge hole in the middle of the bottom end of the roasting chamber (4) is just positioned above the feeding hole of the grinding chamber (6).
4. The phosphorus pentoxide solid milling apparatus according to claim 1, wherein: the two limiting blocks (601) are symmetrically arranged around the middle of the grinding chamber (6), arc-shaped limiting openings are formed in the lower portion of the inner side of each limiting block (601), and the limiting openings are matched with the grinding disc (702).
5. The phosphorus pentoxide solid milling apparatus according to claim 1, wherein: the servo motor (7) drives the connecting rod (701) to rotate left and right by 0-60 degrees through the rotating shaft.
6. The phosphorus pentoxide solid milling apparatus according to claim 1, wherein: the screen layer (603) is matched with the grinding disc (702).
7. The phosphorus pentoxide solid milling apparatus according to claim 1, wherein: the connecting layer (602) is matched with the grinding chamber (6), and the top end of the connecting shaft (801) is fixedly connected with the connecting layer (602).
8. The phosphorus pentoxide solid milling apparatus according to claim 1, wherein: the heating wire (402), the moving motor (5), the servo motor (7) and the vibrating motor (8) are electrically connected with an external power supply through the control switch (201).
9. The phosphorus pentoxide solid milling apparatus according to claim 1, wherein: the collecting tray (9) is positioned right below the screen layer (603), and the collecting tray (9) is positioned right above the middle part of the collecting box (202).
CN201910045162.XA 2019-01-17 2019-01-17 Phosphorus pentoxide solid grinding device Active CN109650361B (en)

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CN110124784B (en) * 2019-06-13 2020-12-04 滨州富创科技服务有限公司 Traditional chinese medicine mask powder crushing apparatus
CN112629279A (en) * 2020-10-23 2021-04-09 江山市艺康化学有限公司 Phosphorus pentoxide condensation equipment
CN112340715A (en) * 2020-11-16 2021-02-09 江山市艺康化学有限公司 Device is used in phosphorus pentoxide powder preparation
CN114100816B (en) * 2021-11-25 2022-12-16 中核第七研究设计院有限公司 Granular fuel granulating device for biomass heat supply and granulating method thereof
CN114260083B (en) * 2021-12-23 2023-03-24 廉江市汇海农牧科技有限公司 Breed rubbing crusher for feed production

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KR100929350B1 (en) * 2007-08-28 2009-12-03 주식회사 신안메이드 Baked Salt Grinder
CN205700746U (en) * 2016-04-25 2016-11-23 四川农之星科技有限公司 Flour mill
CN207929314U (en) * 2017-12-10 2018-10-02 无锡汇欧陶瓷有限公司 A kind of multifunctional ceramic raw material flour mill
CN107837887A (en) * 2017-12-10 2018-03-27 无锡汇欧陶瓷有限公司 A kind of multifunctional ceramic raw material flour mill
CN108060307A (en) * 2017-12-23 2018-05-22 大余县东宏锡制品有限公司 High-purity tungsten, the device and method of tin are refined from ammonium paratungstate solid slag
CN108686808B (en) * 2018-05-07 2020-04-28 祈蒙股份有限公司 A milling equipment for traditional chinese medicine

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Patentee before: Jiaxing worui Technology Co.,Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A solid grinding device for phosphorus pentoxide

Effective date of registration: 20231228

Granted publication date: 20200515

Pledgee: Agricultural Bank of China Limited Dongzhi County Branch

Pledgor: ANHUI LONGHUA CHEMICAL Co.,Ltd.

Registration number: Y2023980075160