CN218167276U

CN218167276U - A rubbing crusher for production of sodium carboxymethylcellulose

Info

Publication number: CN218167276U
Application number: CN202221195655.5U
Authority: CN
Inventors: 宗端后; 万国龙; 张弘
Original assignee: Zhejiang Sanhe Food Science & Technology Co ltd
Current assignee: Zhejiang Sanhe Food Science & Technology Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-12-30
Anticipated expiration: 2032-05-19

Abstract

The utility model relates to a sodium carboxymethylcellulose production technical field specifically is a rubbing crusher for sodium carboxymethylcellulose production, including the rubbing crusher, be provided with dry crushing unit in the rubbing crusher, dry crushing unit includes main part and lower main part, it includes that it is in from top to bottom to drive pivoted upper shaft and set gradually to go up the main part spare, crushing piece and the grinding hanging wall of epaxial break up, lower main part includes the lower shaft and sets up the grinding lower wall on lower shaft top, grind the hanging wall and grind the material with grinding the cooperation of lower wall, be provided with heating element under the grinding. The above technical scheme of the utility model, the material is smashed and is ground through breaking up, cutting in proper order, smashes more thoroughly, through set up heating element under grinding, heats the material at the grinding in-process, and the friction is torn to the material to the process of grinding, more is favorable to the drying.

Description

A rubbing crusher for production of sodium carboxymethylcellulose

Technical Field

The utility model relates to a sodium carboxymethylcellulose production technical field specifically is a rubbing crusher for sodium carboxymethylcellulose production.

Background

Sodium carboxymethylcellulose is the most widely used cellulose in the world today, and is easily soluble in water, and its aqueous solution has viscosity and good adhesive force. The product is widely used in the fields of food, medicine and the like, such as thickening agent in food industry, medicament carrier in medicine industry and adhesive and anti-redeposition agent in daily chemical industry. Protective colloids used as sizing agents and printing pastes in the printing and dyeing industry, and the like. Can be used as the component of oil extraction fracturing fluid in petrochemical industry.

During the production of sodium carboxymethylcellulose, alkalization and etherification are carried out in a kneader, then hydrochloric acid is used for neutralization, alcohol washing is carried out, and then drying and crushing are carried out to obtain the product. The existing operation steps of drying and then crushing not only increase the steps, but also cause the problem of flying of sodium carboxymethylcellulose dust in the processes of conveying from drying to crushing and crushing. In view of the above, the applicant has designed a drying and pulverizing integrated machine in the previous research and development, as described in the chinese utility model patent with patent publication No. CN212309758U, a drying and pulverizing integrated machine for automatic production of sodium carboxymethylcellulose, which comprises a horizontal cylindrical casing with two ends rotatably disposed on an installation frame and a motor for driving the casing to rotate; the shell comprises an outer shell and an inner shell, an annular heating medium cavity is formed between the outer shell and the inner shell, a drying and crushing cavity is formed in the inner cavity of the inner shell, and an exhaust port is formed in the part of a shell side plate, which is positioned in the drying and crushing cavity; the drying and crushing cavity is provided with at least two primary grinding columns axially parallel to the shell and a driving piece for controlling the rotation of the primary grinding columns, and primary crushing parts are respectively formed between the primary grinding columns and the inner wall of the inner shell; the shell is provided with a feed inlet for feeding the drying and crushing cavity and a closed cover for opening and closing the feed inlet. This application is ground through the limit and is smashed, the dry mode of being heated realizes dry crushing integrative completion, has avoided the problem that the dust flies upward. However, it has been found that the heating medium is present between the outer shell and the inner shell, and the drying effect is not satisfactory, and the drying degree affects the pulverizing effect, resulting in poor pulverizing effect.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides a rubbing crusher for production of sodium carboxymethylcellulose combines dry and smashes in an organic whole, and dry crushing effectual.

The utility model adopts the following technical proposal:

the utility model provides a rubbing crusher for production of sodium carboxymethylcellulose, includes the rubbing crusher the top of rubbing crusher is provided with the coarse fodder feed inlet, and the bottom is provided with the thin material discharge gate, be provided with dry crushing subassembly in the rubbing crusher, dry crushing subassembly includes upper main part body and lower main part body, upper main part body includes and is driven pivoted upper shaft by the motor and from top to bottom sets gradually break up piece, crushing piece and grinding hanging wall on the upper shaft, be provided with the material clearing hole on the grinding hanging wall, lower main part body part includes the lower shaft and sets up the grinding lower wall on lower shaft top, grind the hanging wall and grind the material with grinding lower wall cooperation, be provided with heating element in the grinding lower wall.

The above technical scheme of the utility model, the material is smashed and is ground through breaking up, cutting in proper order, smashes more thoroughly, through set up heating element under grinding, heats the material at the grinding in-process, and the friction is torn to the material to the process of grinding, more is favorable to the drying.

Preferably, the heating component is a heating resistance wire and is externally connected with a power supply.

Preferably, the grinding lower disc comprises a grinding shell with an inner cavity, and the heating resistance wire is arranged in the inner cavity.

Preferably, the lower shaft is driven by a motor to rotate, and the rotating direction of the lower shaft is opposite to that of the upper shaft.

Preferably, the wall of the crushing cylinder comprises an outer wall and an inner wall, and an annular heating medium cavity is formed between the inner wall and the outer wall.

Preferably, the crushing member is a plurality of blades arranged around a circumferential direction of the upper shaft.

Preferably, the scattering member is a plurality of scattering blades arranged around the circumferential direction of the upper shaft.

Preferably, the crushing barrel is further provided with a suction port for timely pumping away moisture, so that the materials are dried.

Preferably, a screen mesh which is obliquely arranged is arranged below the grinding lower disc, a collecting opening is formed in the lower side of the screen mesh, a spiral conveyor is arranged on one side of the crushing barrel, an inlet of the spiral conveyor is communicated with the collecting opening, and an outlet of the spiral conveyor is aligned with the coarse material feeding opening.

Through implementing above-mentioned technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses a with dry and crushing synchronous processing, simplified sodium carboxymethylcellulose production technology.

The utility model discloses break up, cut in proper order the material and smash, grind and smash, improved crushing effect greatly.

The utility model discloses with the heating drying setting at the grinding in-process, be favorable to the drying more.

The utility model discloses still set up the screen cloth and carry out the screw conveyer of back transportation to the unsatisfied material of particle diameter, it is smashed to get into the crushing barrel inner loop, smashes completely until it to improve the crushing efficiency and the effect of material.

Drawings

FIG. 1 is a schematic structural view of a pulverizer shown in an embodiment of the present invention;

fig. 2 is a schematic structural view of a scattering member according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a lower grinding plate according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a lower grinding disc according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a pulverizer shown in another embodiment of the present invention;

fig. 6 is a schematic structural view of a pulverizer according to another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1

A pulverizer for producing sodium carboxymethylcellulose is shown in figure 1, and comprises a pulverizing barrel 100 made of metal. A coarse material inlet a is disposed at the top of the pulverizing barrel 100, and is arranged in an enlarged manner, for example, in a trumpet shape, for facilitating the addition of the material, and a cover (not shown in the figure) is disposed at the coarse material inlet a. The bottom of the crushing barrel 100 is provided with a fine material discharge port B, a valve is arranged at the fine material discharge port B, and the crushed material meeting the specification can be discharged out of the crushing barrel 100 from the fine material discharge port B by opening the valve.

The drying and crushing assembly is arranged in the crushing cylinder 100 and mainly comprises two parts, namely an upper body part 21 and a lower body part 22, wherein the upper body part 21 comprises an upper shaft 21a, and a scattering part 21b, a crushing part 21c and a grinding upper disc 21d which are sequentially arranged on the upper shaft 21a from top to bottom, and the upper shaft 21a penetrates through the top end of the crushing cylinder 100 and is driven to rotate by a motor. The breaking-up part 21b is a breaking-up blade 21a-2 arranged around the circumferential direction of the upper shaft 21a, and similar to the stirring blade, the breaking-up blade 21a-2 is in a wave-shaped sheet structure, the number of the sheets is preferably 4-8, the embodiment is preferably 6, and the specific structure can be as shown in fig. 2, the middle annular connecting piece 21a-1 is screwed on the upper shaft 21a, and the breaking-up blade 21a-2 is fixed on the annular connecting piece 21a-1 through a screw. The scattering members 21b mainly function to scatter the undried material having a certain aggregation degree. More even material is provided for subsequent shearing, crushing and grinding, so that the crushing effect is better. The crushing member 21c is a plurality of blades arranged around the circumferential direction of the upper shaft 21a similarly to the structure of the scattering member 21b, except that the blades are blades whose cutting edges are oriented horizontally. The arrangement density of the blades is larger than that of the scattering blades 21a-2, preferably 10-15 blades, and the blades are arranged in a staggered manner from top to bottom, as shown in figure 3.

The lower body part 22 comprises a lower shaft 22a and a grinding lower disc 22B arranged at the top end of the lower shaft 22a, the grinding upper disc 21d is provided with a material through hole 21d-1, the grinding upper disc 21d and the grinding lower disc 22B are matched to grind materials, and the materials entering from a coarse material inlet A are scattered, crushed and ground in sequence and discharged through a fine material outlet B. The upper polishing disk 21d is fixed to the end of the upper shaft 21a, and rotates with the rotation of the upper shaft 21a, and the lower polishing disk 22b is fixed to the bottom of the mill 100 via the lower shaft 22 a. The upper polishing disk 21d and the lower polishing disk 22b have the same diameter, and in order to prevent the material from falling from between the upper polishing disk 21d and the mill 100, the gap between the upper polishing disk 21d and the inner wall of the mill 100 is designed to be sufficiently small, and the upper polishing disk 21d and the inner wall of the mill 100 can be polished. Similarly, the gap between the lower grinding disk 22b and the inner wall of the grinding cylinder 100 is sufficiently small to enable grinding.

The polishing between the upper polishing disk 21d and the lower polishing disk 22b is most sufficient from the middle position to the outside, and in the present embodiment, the passage hole 21d-1 in the upper polishing disk 21d is provided in the middle of the upper polishing disk 21d as close as possible to the center position, thereby ensuring sufficient polishing of the material. And in order to concentrate the material more on the middle part of the upper grinding disc 21d, the upper surface of the upper grinding disc 21d is set to be arc-shaped as shown in fig. 1.

The grinding lower disc 22b is shown in figure 4 and comprises a grinding shell 22b-2 with an inner cavity 22b-1, a heating assembly 300 is arranged in the inner cavity 22b-1, a heating resistance wire is adopted in the embodiment, the disc is arranged in the inner cavity and fixed on the grinding shell 22b-2, a power line through hole is formed in the shell on the side opposite to the grinding surface, a central hole penetrating up and down is formed in the lower shaft 22a, a through hole communicated with the grinding shell is formed in the bottom of the grinding shell, a power source is connected with the grinding shell, and the power line is connected with the heating resistance wire through the central hole and the through hole. The position of the lower shaft 22a is staggered with the position of the fine material outlet opening, and the positions are not influenced mutually. In the drying process, constantly have moisture to spill over, the humidity in the crushing barrel 100 is bigger and bigger be provided with suction opening C on the crushing barrel 100, in time take away the moisture, be favorable to the drying to the material. In order to prevent the materials from being sucked out, the suction port C is arranged on one side of the upper part of the crushing cylinder 100, the materials on the upper part of the crushing cylinder 100 are wet materials and are not easy to be sucked out, the materials in the crushing cylinder can be well sucked out by controlling the suction force, and meanwhile, a filter screen is arranged at the suction port C.

Example 2

The difference between this embodiment and embodiment 1 is that this embodiment also sets the lower grinding disc 22b to rotate, and the lower shaft 22a is rotated by the motor, so as to rotate the lower grinding disc 22b, but the rotation direction is opposite to that of the upper grinding disc 21d, and both of them are better matched with the grinding efficiency. The rotation speeds of the two can be the same or different. The power supply of the heating assembly 300 in the lower grinding disc 22b adopts a storage battery, is fixed on the lower shaft 22a and is positioned outside the crushing cylinder 100, and rotates along with the lower shaft 22a, so that the rotation of the lower shaft 22a does not influence the power supply of the heating assembly 300.

Example 3

This embodiment differs from embodiment 2 in that a heat source is also added to the wall of the milling drum 100 to increase the overall temperature within the milling drum 100. As shown in fig. 5, specifically, the wall of the pulverizing barrel 100 is provided with an interlayer, the wall of the pulverizing barrel 100 includes an outer wall 11 and an inner wall 12, an annular heating medium cavity 13 is formed between the inner wall 12 and the outer wall 11, the heating medium may be hot water or hot gas, and an inlet and an outlet for the heating medium are provided at the top.

Example 4

As shown in fig. 6, in this embodiment, in addition to embodiment 1, a screen 400 is disposed obliquely below the lower grinding disc 22b, a collection port is disposed at a lower side of the screen 400, and a vibration motor 500 is disposed below the screen 400. The size of the apertures of the screen 400 is determined according to the desired target particle size of the product. And a spiral conveyor 600 is arranged on one side of the crushing cylinder 100, the inlet of the spiral conveyor 600 is communicated with the collecting port, and the outlet of the spiral conveyor is aligned with the coarse material feeding port. Smash the screen cloth 400 top that finishes the back material drop in the slope, start vibrating motor 500, the material that accords with the specification falls to fine material discharge gate B department and discharges, and the material that does not accord with the specification can roll to collecting port department, gets into the screw conveyer in, sends to coarse fodder feed inlet A through the screw conveyer and circulates crushing convenient to use.

Claims

1. The utility model provides a rubbing crusher for production of sodium carboxymethylcellulose, includes the rubbing crusher the top of rubbing crusher is provided with the coarse fodder feed inlet, and the bottom is provided with the thin material discharge gate, its characterized in that, be provided with dry crushing subassembly in the rubbing crusher, dry crushing subassembly includes upper main part spare and lower main part spare, upper main part spare includes and is driven pivoted upper shaft by the motor and from top to bottom sets gradually break up piece, crushing piece and the upper grinding plate on the upper shaft, be provided with the material clearing hole on the upper grinding plate, lower main part spare includes the lower shaft and sets up the lower grinding plate on lower shaft top, the upper grinding plate is ground the material with the cooperation of lower grinding plate, be provided with heating element in the lower grinding plate.

2. The pulverizer for producing sodium carboxymethylcellulose according to claim 1, wherein the heating component is a heating resistance wire.

3. The pulverizer for sodium carboxymethylcellulose production as claimed in claim 2, wherein the grinding bottom disk comprises a grinding shell having an inner cavity, the heating resistance wire being disposed within the inner cavity.

4. The pulverizer for producing sodium carboxymethylcellulose according to claim 1, wherein the lower shaft is rotatably driven by a motor, and the rotating direction of the lower shaft is opposite to that of the upper shaft.

5. The pulverizer for producing sodium carboxymethylcellulose according to claim 1, wherein the wall of the pulverizing barrel comprises an outer wall and an inner wall, and an annular heating medium cavity is formed between the inner wall and the outer wall.

6. The pulverizer for producing sodium carboxymethylcellulose according to claim 1, wherein the pulverizing member is a plurality of blades disposed around a circumferential direction of the upper shaft.

7. The pulverizer for producing sodium carboxymethylcellulose according to claim 6, wherein the number of the blades is 10-15.

8. The pulverizer for producing sodium carboxymethylcellulose according to claim 1, wherein the breaking member is a plurality of breaking blades disposed around a circumferential direction of the upper shaft.

9. The pulverizer for producing sodium carboxymethylcellulose according to claim 1, wherein the pulverizing barrel is further provided with a suction port.

10. The pulverizer for producing sodium carboxymethylcellulose according to claim 1, wherein an obliquely arranged screen is arranged below the grinding lower disc, a collecting port is arranged on the lower side of the screen, a screw conveyor is arranged on one side of the pulverizing barrel, an inlet of the screw conveyor is communicated with the collecting port, and an outlet of the screw conveyor is aligned with the coarse material feeding port.