CN221620005U - Raw material screening device for furfural production - Google Patents

Abstract

The utility model discloses a raw material screening device for furfural production, relates to the technical field of furfural raw material screening, and aims to solve the problems that although an inlet is sealed through a sealing plate, dust is continuously generated in the feeding and internal vibration screening processes of the traditional crushing and screening device, and when the material is fed again later, the internal dust is discharged from the inlet, so that the dust is scattered and overflows. Comprising the following steps: the screening device comprises a screening layer, wherein a feeding layer is arranged above the screening layer, a gas filtering layer is arranged above the feeding layer, and a communication port is arranged between the gas filtering layer and the feeding layer; further comprises: the support, it sets up the inside of gas filtration layer, install elementary filter screen, well effect filter screen and high-efficient filter screen in proper order by low to high in the middle of the support, the fan is installed to the top of high-efficient filter screen, the top of fan is installed and is aired exhaust the lid mouth, install the handle on the outer wall of airing exhaust the lid mouth, all install the stopper on the inner wall of gas filtration layer both sides.

Description

Raw material screening device for furfural production

Technical Field

The utility model relates to the technical field of furfural raw material screening, in particular to a raw material screening device for furfural production.

Background

Furfural is a common ingredient in industrial chemicals, is an aromatic aldehyde, is annular in shape, has a chemical formula of C5H4O2, is colorless oily liquid with almond taste, and is prepared from bran. In practice, waste materials of agricultural grains such as rice bran, wheat hulls, cotton seed hulls, corncobs and the like can be used as raw materials of furfural; in the production of the furfural raw material, the raw material is crushed by a crushing and screening device, and crushed materials are screened;

The application number is as follows: CN214051814U, named as "a screening type furfural energy-saving raw material crusher for production" comprises a first crushing tank, a second crushing tank, a screening pipe and a material receiving pipe, wherein the top of the screening pipe is fixedly provided with a material feeding pipe, the top of the material receiving pipe is fixedly provided with a screen plate, screening holes are uniformly distributed on the screen plate, two sides of the material receiving pipe are fixedly provided with vibrating motors, and the front of the first crushing tank is fixedly provided with two groups of first crushing motors. The screen plate is matched with the vibrating motor, and the screening operation can be carried out on the production raw materials, so that the pulverizer is convenient for pulverizing the raw materials with different sizes, and the practicability of the pulverizer is improved.

In the conventional crushing and screening device, although the inlet is sealed by the sealing plate, dust is continuously generated in the feeding and internal vibration screening processes, and when the material is fed again later, the internal dust is discharged from the inlet, so that the dust is scattered and overflowed; therefore, the existing requirements are not met, and a raw material screening device for furfural production is provided.

Disclosure of utility model

The utility model aims to provide a raw material screening device for furfural production, which solves the problems that in the prior art, although an inlet is sealed by a sealing plate, dust is continuously generated in the feeding and internal vibration screening processes, and the internal dust is discharged from the inlet when the raw material is fed again later, so that the dust is scattered and overflowed.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a raw material screening device for furfural production, comprising: the screening device comprises a screening layer, wherein a feeding layer is arranged above the screening layer, a gas filtering layer is arranged above the feeding layer, and a communication port is arranged between the gas filtering layer and the feeding layer;

Further comprises:

The support, it sets up the inside of gas filtering layer, install elementary filter screen, well effect filter screen and high-efficient filter screen in proper order by low to high in the middle of the support, the fan is installed to the top of high-efficient filter screen, the lid mouth of airing exhaust is installed to the top of fan, install the handle on the outer wall of lid mouth of airing exhaust, all install the stopper on the inner wall of gas filtering layer both sides, and the lower extreme block of support is in the inslot of stopper.

Preferably, the first lead screw linear module is all installed to the inside both sides of screening layer, the second lead screw linear module is installed to the below of first lead screw linear module, first lead screw linear module and second lead screw linear module all include lead screw motor and ball, install the lead screw slider on the outer wall of ball.

Preferably, a screening box is arranged on the outer wall of the screw rod sliding block at the upper end, a screen is arranged at the bottom of the screening box, and a scraping plate is arranged between the first screw rod linear modules.

Preferably, the lower extreme connect the workbin on the outer wall of lead screw slider, and connect the size of workbin to be greater than the sieve bin, the one end of first lead screw straight line module and second lead screw straight line module all is provided with the switch cover.

Preferably, a left driving motor and a right driving motor are arranged between the material feeding layer and the screening layer, a transmission shaft is arranged at the output end of the driving motor, a crushing roller is arranged at one end of the transmission shaft, and the driving motor is in transmission connection with the crushing roller through the transmission shaft.

Preferably, a limiting guide frame is arranged below the crushing roller, and the limiting guide frame is positioned above the first screw rod linear module.

Preferably, a feeding pipe is arranged on one side of the feeding layer, one end of the feeding pipe extends into the feeding layer, and a pipe cover is arranged on the outer wall of the feeding pipe.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, through the arrangement of the gas filter layer, dust generated in the feeding and screening processes of the screening equipment can be removed; specifically, the air is driven by the fan to move into the air filtering layer, and the air sequentially passes through the primary filter screen, the medium-efficiency filter screen and the high-efficiency filter screen, so that the dust content in the air is reduced, and the dust-containing air generated in the feeding and screening processes can be pulled and filtered due to the communication of the screening layer, the feeding layer and the air filtering layer, so that the environmental protection performance of the raw material screening device can be remarkably improved; after filtering for a period of time, the bracket is lifted upwards through the handle, so that the lower end of the bracket is separated from the limiting block, and the whole bracket is taken out from the gas filtering layer, thereby facilitating the replacement and cleaning of the filtering net by a user; after replacement and cleaning, only the lower end of the bracket is required to be inserted into the limiting block again, so that a user can conveniently perform replacement and cleaning operations; the problem of current crushing screening plant is sealed the entry through the closing plate, but can constantly produce the dust at pan feeding and inside vibrations sieve material in-process, when follow-up reinforced once more, inside dust can follow the entrance and discharge, makes the dust scatter the excessive is four, and the convenience of customers changes, dismouting, operation such as clearance to this filtering part.

2. The screen bin is used for receiving the raw materials that the top was smashed and then falls down, and after the screen bin received the raw materials, rock inside raw materials granule through reciprocating motion's mode, make the granule that is less than the screen cloth aperture fall down, and the granule that is greater than the screen cloth aperture then remains inside, after rocking a period of time, remove the screen bin to the scraper blade on reciprocating motion, make the scraper blade scrape out the granule that screen cloth department blockked up the aperture, connect the workbin to the screen bin below, connect the raw materials that the screening falls down, after the screening, remove the workbin that connects and screen bin to switch lid department, the convenience of customers is got the material in this department.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the feed layer and the screening layer of the present utility model;

FIG. 3 is a schematic view of a first linear module of the present utility model;

FIG. 4 is a schematic view of the internal structure of a gas filtering layer according to the present utility model;

In the figure: 1. a screening layer; 2. a feed layer; 3. a gas filter layer; 4. a feed pipe; 5. a tube cover; 6. a driving motor; 7. a transmission shaft; 8. a pulverizing roller; 9. a limit guide frame; 10. the first screw rod linear module; 11. a lead screw motor; 12. a ball screw; 13. a screw rod sliding block; 14. a screening box; 15. a screen; 16. the second lead screw linear module; 17. a material receiving box; 18. a scraper; 19. a communication port; 20. a bracket; 21. a primary filter screen; 22. a medium-efficiency filter screen; 23. an efficient filter screen; 24. a blower; 25. an exhaust cover opening; 26. a handle; 27. opening and closing the cover; 28. and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, an embodiment of the present utility model is provided: a raw material screening device for furfural production, comprising: the screening layer 1, the top of screening layer 1 is provided with feed layer 2, is provided with gas filter layer 3 above feed layer 2, is provided with intercommunication mouth 19 between gas filter layer 3 and the feed layer 2;

Further comprises:

The bracket 20 is arranged in the gas filtering layer 3, a primary filter screen 21, a middle filter screen 22 and a high-efficiency filter screen 23 are sequentially arranged in the middle of the bracket 20 from low to high, a fan 24 is arranged above the high-efficiency filter screen 23, an exhaust cover opening 25 is arranged above the fan 24, a handle 26 is arranged on the outer wall of the exhaust cover opening 25, limiting blocks 28 are arranged on the inner walls of the two sides of the gas filtering layer 3, and the lower ends of the bracket 20 are clamped in grooves of the limiting blocks 28;

The dust generated in the feeding and screening process of the screening equipment can be removed through the arrangement of the gas filtering layer 3; specifically, the fan 24 drives the gas to be driven into the gas filtering layer 3, the gas sequentially passes through the primary filter screen 21, the middle-effect filter screen 22 and the high-efficiency filter screen 23, so that the dust content in the gas is reduced, and the dust-containing gas generated in the feeding and screening processes can be pulled and filtered due to the communication of the screening layer 1, the feeding layer 2 and the gas filtering layer 3, so that the environmental protection performance of the raw material screening device can be remarkably improved;

After filtering for a period of time, the bracket 20 is lifted upwards through the handle 26, so that the lower end of the bracket 20 is separated from the limiting block 28, and the whole bracket 20 is taken out from the gas filtering layer 3, thereby facilitating the replacement and cleaning of the filter screen by a user; after replacement and cleaning, only the lower end of the bracket 20 is required to be inserted into the position of the limiting block 28 again, so that the replacement and cleaning operation is convenient for a user.

Referring to fig. 2 and 3, a first screw linear module 10 is installed on both sides of the inside of the screening layer 1, a second screw linear module 16 is installed below the first screw linear module 10, the first screw linear module 10 and the second screw linear module 16 both comprise a screw motor 11 and a ball screw 12, and a screw slider 13 is installed on the outer wall of the ball screw 12;

The screw motor 11 and the ball screw 12 are used for driving the screw slider 13 to linearly move, the moving mode is the conventional operation logic of the linear screw module, the linear screw module is a realistic mature technology, and the positions of the blanking position and the switch cover 27 are fixed, so that a user can conveniently set the moving position in advance in a mode of inputting a stroke through codes, and the linear screw module is also a conventional technology in the field.

Referring to fig. 3, a sieve box 14 is mounted on the outer wall of an upper screw slider 13, a screen 15 is arranged at the bottom of the sieve box 14, and a scraper 18 is mounted between the first screw linear modules 10;

The sieve box 14 is used for receiving the raw materials which fall down after being crushed from the upper part, the sieve box 14 shakes the internal raw material particles in a reciprocating movement mode after receiving the raw materials, so that the particles smaller than the aperture of the screen 15 fall down, the particles larger than the aperture of the screen 15 remain in the sieve box, and after shaking for a period of time, the sieve box 14 is moved to the scraper 18 to reciprocate, so that the scraper 18 scrapes the particles with the aperture blocked at the screen 15.

Referring to fig. 2, a material receiving box 17 is mounted on the outer wall of the lower screw slider 13, the size of the material receiving box 17 is larger than that of the material sieving box 14, and one ends of the first screw linear module 10 and the second screw linear module 16 are respectively provided with a switch cover 27;

The material receiving box 17 moves to the lower part of the sieving box 14 to receive the raw materials which are sieved and fallen, and after sieving, the material receiving box 17 and the sieving box 14 are moved to the position of the switch cover 27, so that a user can conveniently take materials at the position.

Referring to fig. 1 and 2, a left driving motor 6 and a right driving motor 6 are installed between a material feeding layer 2 and a screening layer 1, a transmission shaft 7 is arranged at the output end of the driving motor 6, a crushing roller 8 is installed at one end of the transmission shaft 7, and the driving motor 6 is in transmission connection with the crushing roller 8 through the transmission shaft 7;

the driving motor 6 is used for driving the transmission shaft 7 to rotate with the crushing roller 8, and the crushing rollers 8 on two sides crush and crush the raw materials.

Referring to fig. 2, a limiting guide frame 9 is disposed below the pulverizing roller 8, and the limiting guide frame 9 is located above the first screw linear module 10;

The crushed raw material is guided by the limited position guide frame 9 to move to the middle opening and falls from the opening, thereby playing the role of guiding the blanking position.

Referring to fig. 1 and 2, a feeding pipe 4 is installed at one side of the feeding layer 2, one end of the feeding pipe 4 extends into the feeding layer 2, and a pipe cover 5 is installed on the outer wall of the feeding pipe 4;

The feed pipe 4 is used for feeding operation, and the pipe cover 5 is used for closing the feed pipe after feeding so that the internal gas is discharged only from the filtering place above.

Working principle: when the novel material screening machine is used, furfural raw materials enter a feeding layer 2 from a feeding pipe 4, a driving motor 6 is used for driving a transmission shaft 7 and a crushing roller 8 to rotate, raw materials are extruded and crushed through the crushing rollers 8 on two sides, the crushed raw materials are guided by a limited position guide frame 9 to move to a middle opening and fall into a screening bin 14 from the opening, a first screw linear module 10 drives the screening bin 14 to reciprocate, particles smaller than the aperture of a screen 15 fall down, particles larger than the aperture of the screen 15 remain in the interior, a material receiving bin 17 moves to the lower part of the screening bin 14, the screened and fallen raw materials are picked up, and after screening is finished, the material receiving bin 17 and the screening bin 14 are moved to a switch cover 27, so that a user can conveniently take materials at the position;

In the feeding and screening processes, the air is driven to the air filtering layer 3 by the fan 24, and the air sequentially passes through the primary filter screen 21, the middle-effect filter screen 22 and the high-efficiency filter screen 23, so that the dust content in the air is reduced, and the dust-containing air generated in the feeding and screening processes can be drawn and filtered and the filtered air is discharged because the screening layer 1, the feeding layer 2 and the air filtering layer 3 are communicated;

After filtering for a period of time, the bracket 20 is lifted upwards through the handle 26, so that the lower end of the bracket 20 is separated from the limiting block 28, and the whole bracket 20 is taken out from the gas filtering layer 3, thereby facilitating the replacement and cleaning of the filtering screen by a user.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The raw material screening device for furfural production comprises a screening layer (1), wherein a feeding layer (2) is arranged above the screening layer (1), a gas filtering layer (3) is arranged above the feeding layer (2), and a communication port (19) is formed between the gas filtering layer (3) and the feeding layer (2);

The method is characterized in that: further comprises:

Support (20), it sets up the inside of gas filter layer (3), install elementary filter screen (21), well effect filter screen (22) and high-efficient filter screen (23) in proper order by low to high in the middle of support (20), fan (24) are installed to the top of high-efficient filter screen (23), exhaust lid mouth (25) are installed to the top of fan (24), install handle (26) on the outer wall of exhaust lid mouth (25), stopper (28) are all installed on the inner wall of gas filter layer (3) both sides, and the lower extreme block of support (20) is in the inslot of stopper (28).

2. The raw material screening device for producing furfural according to claim 1, wherein: the screening device is characterized in that first screw linear modules (10) are arranged on two sides of the inside of the screening layer (1), second screw linear modules (16) are arranged below the first screw linear modules (10), the first screw linear modules (10) and the second screw linear modules (16) comprise screw motors (11) and ball screws (12), and screw sliding blocks (13) are arranged on the outer walls of the ball screws (12).

3. The raw material screening device for producing furfural according to claim 2, wherein: the upper end install on the outer wall of lead screw slider (13) and sieve workbin (14), the bottom of sieve workbin (14) is provided with screen cloth (15), install scraper blade (18) between first lead screw straight line module (10).

4. A raw material screening device for producing furfural according to claim 3, wherein: the lower extreme connect workbin (17) to install on the outer wall of lead screw slider (13), and connect the size of workbin (17) to be greater than sieve feed bin (14), the one end of first lead screw straight line module (10) and second lead screw straight line module (16) all is provided with switch cover (27).

5. The raw material screening device for producing furfural according to claim 1, wherein: two driving motor (6) about install between feed layer (2) and screening layer (1), the output of driving motor (6) is provided with transmission shaft (7), crushing roller (8) are installed to the one end of transmission shaft (7), and driving motor (6) are connected with crushing roller (8) transmission through transmission shaft (7).

6. The raw material screening device for producing furfural according to claim 5, wherein: the lower part of the crushing roller (8) is provided with a limiting guide frame (9), and the limiting guide frame (9) is positioned above the first screw rod linear module (10).

7. The raw material screening device for producing furfural according to claim 1, wherein: one side of the feeding layer (2) is provided with a feeding pipe (4), one end of the feeding pipe (4) extends into the feeding layer (2), and the outer wall of the feeding pipe (4) is provided with a pipe cover (5).