CN213762795U

CN213762795U - Coal quality laboratory screening plant

Info

Publication number: CN213762795U
Application number: CN202022750300.5U
Authority: CN
Inventors: 袁萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-23
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a coal quality laboratory screening plant belongs to coal quality chemical examination field. Including the closing cap, the round frame sieve, the round frame base, automatically controlled discharger, oversize material discharge gate, undersize material discharge gate, the bumper shock absorber, shock excitation motor, a pedestal, the product is collected the bag, round frame sieve upper portion sets up the closing cap, the lower part card is fixed on the round frame base, round frame sieve frame department sets up automatically controlled discharger and oversize material discharge gate, round frame base frame department sets up automatically controlled discharger and undersize material discharge gate, round frame base lower part sets up the bumper shock absorber, the bumper shock absorber lower part sets up shock excitation motor, shock excitation motor fixes on the base. The material is fed by the conical funnel and makes a circular rotation motion in the circular frame sieve, fine particles pass through the sieve, coarse particles are left on the sieve, the electric control discharger is opened, the coarse and fine particles enter the product collecting bag from respective discharge ports, and separation of the coarse and fine particles is realized. The utility model discloses a reasonable structural design reaches that the screening time is adjustable, and the dust suppression is effectual, the purpose that artifical intensity of labour is low.

Description

Coal quality laboratory screening plant

Technical Field

The utility model relates to a coal quality laboratory screening plant, more specifically say, relate to a be applied to screening plant of coal quality laboratory system appearance link, belong to coal quality chemical examination field.

Background

The coal quality screening test is a basic method for measuring the granularity composition and the quality of each size fraction of coal. Through screening tests, the block yield of each produced coal bed and the quality characteristics (ash content, sulfur content and the like) of different particle size grades can be known. The obtained screening data is an important basis for reasonably utilizing coal resources and formulating the quality standard of coal products, is also a reliable basis for designing a coal preparation plant, and can be used for guiding the daily production of the coal preparation plant. Therefore, the screening test is a basic test of coal quality test, a coal laboratory often needs to separate coal into a plurality of coal samples with different particle sizes according to particle sizes, and then performs required coal quality test analysis on the coal samples, and the coal samples are required to have better representativeness in production, which requires higher accuracy of the screening test.

At present, there are two screening methods commonly used in coal laboratories, the first is: the manual hand-operated wooden frame sieve is the most traditional sieving mode, and the wooden frame sieve is shaken manually to separate coal according to granularity, so that the manual hand-operated wooden frame sieve has the advantages of sufficient sieving time, high data accuracy and the defects of more manual demands, high labor intensity, large requirements on experimental sites and easiness in dust generation; secondly, the method comprises the following steps: the mechanical vibrating screen adopts the mode that the screen plate is driven by the motor to vibrate for screening, and has the advantages of mechanization, labor saving, small occupied experimental site and non-adjustable screening time, difficulty in ensuring precision, easiness in dust generation due to an open structure and pollution to the working environment. Therefore, in order to ensure the accuracy of screening data, most coal laboratories continue to use an artificial coal screening test as a basic method for determining the coal particle size composition and the quality of each particle size fraction. Through screening tests, the block yield of each produced coal bed and the quality characteristics (ash content, sulfur content and the like) of different particle size grades can be known. The obtained screening data is an important basis for reasonably utilizing coal resources and formulating the quality standard of coal products, is also a reliable basis for designing a coal preparation plant, and can be used for guiding the daily production of the coal preparation plant. Therefore, the screening test is a basic test of coal quality test, a coal laboratory often needs to separate coal into a plurality of coal samples with different particle sizes according to particle sizes, and then performs required coal quality test analysis on the coal samples, and the coal samples are required to have better representativeness in production, which requires higher accuracy of the screening test.

In recent years, patents related to laboratory screening devices appear in China, mainly focusing on improvement on mechanical structures and dust removal, and related patent technologies in the aspect of adjustable screening time are not available.

Disclosure of Invention

In view of this, the utility model aims at providing a coal quality laboratory screening plant, this coal quality laboratory screening plant can realize that the screening time is adjustable according to reasonable structural design, and the dust suppression is effectual, and area is little, the purpose of artifical low in labor strength and easy operation.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a coal quality laboratory screening plant, including the closing cap, the round frame sieve, the round frame base, automatically controlled discharger, oversize thing discharge gate, undersize thing discharge gate, the bumper shock absorber, shock excitation motor, a pedestal, the product is collected the bag, round frame sieve upper portion sets up the closing cap, the lower part card is fixed on the round frame base, round frame sieve frame department sets up automatically controlled discharger and oversize thing discharge gate, round frame base frame department sets up automatically controlled discharger and undersize thing discharge gate, round frame base lower part sets up the bumper shock absorber, the bumper shock absorber lower part sets up shock excitation motor, shock excitation motor fixes on the base, hang at oversize thing discharge gate and undersize thing discharge gate position respectively and put the product and collect the bag.

Preferably, in the screening device for the coal laboratory, a conical feeding funnel is arranged at the center of the sealing cover and is welded and fixed with the sealing cover.

Preferably, among the above-mentioned coal quality laboratory screening plant, the round frame sieve bottom comprises the sieve of certain aperture, can change the sieve of different apertures according to the demand, is the cylindrical frame that has a take the altitude on every side, sets up the draw-in groove on the frame, and upper portion and closing cap card are solid, and the lower part is solid with the frame card of round frame base, and the unity compresses tightly.

Preferably, in the screening device for the coal laboratory, the lower part of the round frame base is connected with the shock absorber through a bolt.

Preferably, in the above coal quality laboratory screening device, the oversize material discharge port is correspondingly connected with the upper outlet of the circular frame screen frame, and an electric control discharger is installed at the connection position.

Preferably, in the above coal quality laboratory screening plant, the undersize discharge gate corresponds with the export on the frame of circle frame base and is connected, installs automatically controlled discharger in the junction.

Preferably, in the coal laboratory screening device, the vibration motor is fixed on the base and is connected with the bottom bolt of the shock absorber.

Preferably, among the above-mentioned coal quality laboratory screening plant, the product is collected the bag and is hung respectively in oversize material discharge gate and undersize material discharge gate, and both junctions adopt the clip to press from both sides tightly sealed.

Has the advantages that: the utility model provides a pair of coal quality laboratory screening plant. By adopting reasonable structural design, the material can be screened and separated according to a certain granularity, the screening time is abundant and adjustable, the separation efficiency is higher, the manual labor intensity is relieved automatically and mechanically, and the pollution of dust to the laboratory environment is reduced by a cover sealing type structure.

Compared with the prior art, the utility model following advantage has:

1. the utility model discloses break through traditional laboratory screening plant's thinking and inject, adopt novel structural style to realize that the screening time is adjustable, screening data accuracy is high.

2. The utility model discloses coal quality laboratory screening plant simple structure, area is little, and operates, maintains the convenience.

3. The utility model discloses coal quality laboratory screening plant can optimize coal quality laboratory operational environment, reduces workman's work load.

4. The utility model discloses coal quality laboratory screening plant is collected, is loaded and is got the convenience to the coal sample product after the separation.

Drawings

FIG. 1 is a schematic structural diagram of a coal quality laboratory screening device in an embodiment of the present invention;

the reference numbers are as follows:

1. the device comprises a sealing cover, 2 parts of a round frame sieve, 3 parts of a round frame base, 4 parts of an electronic control discharger, 5 parts of a discharge port of oversize materials, 6 parts of a discharge port of undersize materials, 7 parts of a shock absorber, 8 parts of a shock excitation motor, 9 parts of a base and 10 parts of a product collecting bag.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the embodiment of the utility model provides a coal quality laboratory screening plant, including closing cap 1, round frame sieve 2, round frame base 3, automatically controlled discharger 4, oversize thing discharge gate 5, undersize thing discharge gate 6, bumper shock absorber 7, excitation motor 8, base 9, product collection bag 10, round frame sieve 2 upper portion sets up closing cap 1, the lower part card is solid on round frame base 3, frame department sets up automatically controlled discharger 4 and oversize thing discharge gate 5, round frame base 3's frame department sets up automatically controlled discharger 4 and undersize thing discharge gate 6, round frame base 3 lower part sets up bumper shock absorber 7, bumper shock absorber 7 lower part sets up excitation motor 8, excitation motor 8 fixes on base 9, product collection bag 10 hangs respectively in oversize thing discharge gate 5 and undersize thing discharge gate 6 department. The material is given into on the 2 sieve plates of circle frame sieve by the conical funnel that closing cap 1 center set up, under excitation motor 8's vibration effect, the material makes circular rotation motion in circle frame sieve 2, after a certain period of time, the fine particle that is less than the sieve mesh diameter sees through the sieve mesh and gets into in the circle frame base 3, the coarse particle is left in the circle frame sieve 2, open the automatically controlled row of

frame sieve

2 and 3 frames department of circle frame base 4 row's ware 4 this moment, under the effect of circular rotation excitation force, the coarse grain material is discharged from oversize thing discharge gate 5, the fine grain material is discharged from undersize thing discharge gate 6, get into respective product collection bag 10, the separation of thick, fine particle has been realized. The screening time is adjustable by additionally arranging the electric control discharger, and the sealing cover and the product collecting bag hung at the material discharge port are additionally arranged, so that the dust pollution to the laboratory environment is effectively inhibited.

As shown in fig. 1, in order to optimize the use effect of the sealing cover 1 in the above embodiment, a conical funnel is welded at the center of the sealing cover 1, so that feeding is facilitated, and dust can be effectively inhibited.

As shown in fig. 1, in order to optimize the use effect of the round frame sieve 2 in the above embodiment, the bottom plate of the round frame sieve 2 is composed of sieve plates with certain apertures, the cylindrical frame has a certain height, the reasonable movement range of materials is ensured, and the clamping grooves are formed in the frame, so that the sealing cover 1 and the round frame base 3 are convenient to install and detach.

As shown in fig. 1, in order to optimize the use effect of the circular frame base 3 in the above embodiment, the circular frame base 3 is bolted to the damper 7, and directly transmits the exciting force of the exciting motor 8 to the screen surface of the circular frame screen 2.

As shown in fig. 1, in order to optimize the use effect of the oversize material outlet 5 in the above embodiment, an electric control discharger 4 is installed between the oversize material outlet 5 and the frame of the round frame sieve 2, so that the sieving time is automatically adjustable, and a clamp is arranged at the discharge end of the oversize material outlet 5, so that the product collection bag is conveniently sleeved and clamped, and the dust is further controlled to be discharged.

As shown in fig. 1, in order to optimize the use effect of the undersize discharge port 6 in the above embodiment, the electronic control discharger 4 is installed between the undersize discharge port 6 and the frame of the round frame base 3, so that the screening time is automatically adjustable, the discharge end of the undersize discharge port 6 is provided with the clamp device, the product collection bag is conveniently sleeved and clamped, and the dust is further controlled to be discharged.

As shown in fig. 1, in order to optimize the use effect of the excitation motor 8 in the above embodiment, the excitation motor 8 is fixed on the base 9 through bolts, so that the structure is stable and the operation is stable.

As shown in fig. 1, in order to optimize the use effect of the product collection bag 10 in the above embodiment, the product collection bag 10 is a common cloth bag or a snake skin bag, and is conveniently hung at the discharge port, clamped and sealed, so that the dust amount is effectively reduced.

Claims

1. A coal quality laboratory screening device comprises a sealing cover (1), a round frame screen (2), a round frame base (3), an electric control discharger (4), an oversize material discharge port (5), an undersize material discharge port (6), a shock absorber (7), an excitation motor (8), a base (9) and a product collecting bag (10), and is characterized in that the sealing cover (1) is arranged at the upper part of the round frame screen (2), the lower part of the round frame screen is clamped on the round frame base (3), the electric control discharger (4) and the oversize material discharge port (5) are arranged at the frame of the round frame screen (2), the electric control discharger (4) and the undersize material discharge port (6) are arranged at the frame of the round frame base (3), the shock absorber (7) is arranged at the lower part of the round frame base (3), the excitation motor (8) is arranged at the lower part of the shock absorber (7), and the excitation motor (8) is fixed on the base (9), the product collecting bag (10) is respectively hung at the oversize material outlet (5) and the undersize material outlet (6).

2. A coal quality laboratory screening device according to claim 1, characterized in that a conical feeding funnel is arranged in the center of the cover (1) and is welded with the cover (1).

3. A coal laboratory screening apparatus as claimed in claim 1, characterized in that the bottom of said round frame screen (2) is composed of screen plates with certain aperture, and is surrounded by a cylindrical frame with certain height.

4. A coal laboratory screening device according to claim 1, characterized in that the round frame base (3) is fixed on the shock absorber (7), and the upper part is tightly attached and fixed with the bottom of the round frame screen (2).

5. A coal laboratory screening apparatus as claimed in claim 1, characterized in that said oversize product outlet (5) is arranged on the frame of said circular frame screen (2), and said electrically controlled discharger (4) is arranged at the junction.

6. A coal laboratory screening device according to claim 1, characterized in that the undersize material outlet (6) is arranged on the frame of the round frame base (3), and the electrically controlled discharger (4) is arranged at the joint.

7. A coal laboratory screening apparatus as claimed in claim 1, wherein said excitation motor (8) is fixed to a base (9) and bolted to said damper (7).

8. A coal laboratory screening apparatus according to claim 1, wherein said product collection bag (10) is clamp sealed with said oversize product outlet (5) and said undersize product outlet (6).