CN212576855U

CN212576855U - Closed powder screening environmental protection equipment

Info

Publication number: CN212576855U
Application number: CN202021143498.4U
Authority: CN
Inventors: 王化强
Original assignee: Zhangqiu Chengyu Machine Manufacturing Co ltd
Current assignee: Zhangqiu Chengyu Machine Manufacturing Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-02-23
Anticipated expiration: 2030-06-19

Abstract

The utility model provides a closed powder screening environmental protection equipment, including cyclone and defeated powder pipeline, the feed inlet links to each other with the inlet pipe, and the gas vent links to each other with the blast pipe, and the middlings mouth links to each other with the middlings pipe, and cyclone's the latter half is formed with the screen cloth preparation, and the equipartition has the screen hole on it, and the outer parcel of cyclone has an album powder shell, and the position that is close to the bottom surface on the collection powder shell side is opened there is the farine mouth, and the farine mouth is connected with the farine pipe. The closed structural design solves the problems of more dust and serious dust pollution, and the powder is only exposed in the air in the last powder collecting stage in the whole process, and the rest time is carried out in closed equipment. The powder screening mechanism adopts a pneumatic conveying mode as a powder conveying mode, utilizes the gravity of the powder and the centrifugal force of the cyclone separator to screen the powder instead of a vibration mode, and reduces the noise generated by the operation of the whole equipment.

Description

Closed powder screening environmental protection equipment

Technical Field

The utility model relates to a screening installation specifically is a closed powder screening environmental protection equipment.

Background

In urban construction, environmental pollution is an important problem, and dust pollution is particularly prominent in the process of using various powder screening devices. In recent years, in the process of powder transportation, a pneumatic conveying mode is gradually applied, the pneumatic conveying has the characteristics of low power consumption and random and variable motion tracks, and in the process of pneumatic conveying, the gravity of the powder plays an important role and influences various motion states of the powder in a conveying pipeline. Dust screening installation of vibrations formula, in the use, the raise dust is more, and screening speed is slower, moreover because the leading principle of screening adopts the vibrations of equipment itself to accomplish the screening, the noise is great.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a closed powder screening environmental protection equipment to solve the problem that proposes in the above-mentioned background art.

For solving the deficiencies of the prior art, the utility model provides a following technical scheme:

the utility model provides a closed powder screening environmental protection equipment, includes cyclone and defeated powder pipeline, last feed inlet, gas vent and the middlings mouth of having of cyclone, the feed inlet links to each other with the inlet pipe, the gas vent links to each other with the blast pipe, the middlings mouth links to each other with the middlings pipe, and cyclone's the latter half is formed with the screen cloth preparation, and the equipartition has the mesh hole on it, and the outer parcel of cyclone has the collection powder shell, and the position that is close to the bottom surface on the collection powder shell side is opened there is the fine powder mouth, and the fine powder mouth is connected with the fine. The lower half part of the cyclone separator is a conical screen, and the lower half part of the cylinder is made of a screen. The air outlet is arranged on the upper surface of the cylinder body, and the coarse powder port is a lower port of the conical screen.

As an improved scheme of the utility model: the lower end of the coarse powder pipe is connected with a coarse powder box, a leakage opening is reserved in the side face of the bottom of the coarse powder box, and a manual valve is mounted on the leakage opening.

As an improved scheme of the utility model: the lower extreme of thin powder pipe is connected with the thin powder box, and the powder outlet is left to the bottom side of thin powder box, is equipped with manual valve on the powder outlet.

As an improved scheme of the utility model: the exhaust pipe is communicated with the fine powder box, and the upper surface of the fine powder box is arranged on the exhaust pipe.

As an improved scheme of the utility model: the intercommunication of thin powder box side has filtering mechanism, and filtering mechanism's the other end is connected with the vacuum pump, and the delivery outlet of vacuum pump and the input port intercommunication of inlet pipe.

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

the closed structural design solves the problems of more dust and serious dust pollution, and the powder is only exposed in the air in the last powder collecting stage in the whole process, and the rest time is carried out in closed equipment. The powder screening mechanism adopts a pneumatic conveying mode as a powder conveying mode, utilizes the gravity of the powder and the centrifugal force of the cyclone separator to screen the powder instead of a vibration mode, and reduces the noise generated by the operation of the whole equipment.

Drawings

FIG. 1 is a diagram: the structure diagram of the closed powder screening environmental protection equipment;

FIG. 2 is a diagram of: a cross section of a screening mechanism of the closed powder screening environmental protection equipment;

FIG. 3 is a diagram of: the closed powder screening environmental protection equipment is used for transforming the external structure of the cyclone separator;

in the figure: 1-feeding pipe, 2-feeding port, 3-exhaust port, 4-exhaust pipe, 5-barrel, 6-cone, 7-external rotational flow, 8-internal rotational flow, 9-coarse powder port, 10-coarse powder pipe, 11-coarse powder box, 12-leakage port, 13-powder collecting shell, 14-fine powder port, 15-fine powder pipe, 16-fine powder box, 17-filtering mechanism, 18-vacuum pump, 19-powder outlet, 20-sieve mesh and 21-cyclone cavity.

Detailed Description

The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the drawings or description, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practical applications. The embodiments of the present invention are provided only for illustration, and not for limiting the scope of the present invention. Any obvious and obvious modifications or alterations to the present invention can be made without departing from the spirit and scope of the present invention.

Example 1

Referring to fig. 1-3, the present embodiment provides a closed powder screening environmental protection device, which includes a cyclone separator and a powder conveying pipeline, the cyclone separator is provided with a feed inlet 2, an exhaust outlet 3 and a coarse powder outlet 9, the feed inlet 2 is connected with a feed pipe 1, the exhaust outlet 3 is connected with an exhaust pipe 4, the coarse powder outlet 9 is connected with a coarse powder pipe 10, the lower half portion of the cyclone separator is made of a screen mesh, sieve meshes 20 are uniformly distributed on the lower half portion of the cyclone separator, a powder collecting outer shell 13 is wrapped outside the cyclone separator, a fine powder outlet 14 is formed on the side surface of the powder collecting outer shell 13 near the bottom surface, and the fine powder outlet 14 is connected with a fine powder pipe 15. The lower half part of cyclone is conical screen 6, and the lower half part of barrel 5 is made by the screen cloth. The exhaust port 3 is arranged on the upper surface of the cylinder 5, and the coarse powder port 9 is the lower port of the conical screen 6. Have the paddle in the cyclone, in operation, the paddle rotates, separates the dust and the gas mixture that get into in whirlwind chamber 21, and whirl 8 in the gas entering is discharged from air exit 3, and relative air, powder quality is heavier, is taken to outer whirl 7 by centrifugal force, is the spiral decline motion along the lateral wall, because the equipartition has screen hole 20 on the lateral wall, consequently to entering into collection powder shell 13 to the fine powder that can pass through screen hole 20 in, the coarse powder that can't pass through screen hole 20 will continue to descend along the inner wall, is discharged from coarse powder mouth 9.

Referring to fig. 1, the lower end of the coarse powder pipe 10 is connected to a coarse powder box 11, a leakage port 12 is reserved on the bottom side surface of the coarse powder box 11, and a manual valve is installed on the leakage port 12. For collecting the coarse powder, wherein the coarse powder box 11 can be replaced by any component having a collecting function.

Referring to fig. 1, the lower end of the fine powder tube 15 is connected to a fine powder box 16, a powder outlet 19 is formed in the bottom side surface of the fine powder box 16, and a manual valve is installed on the powder outlet 19. For collecting the fine powder, wherein the fine powder box 16 may be replaced with any component having a collecting function.

Example 2

Referring to fig. 1 and fig. 2, the main difference from embodiment 1 is:

referring to fig. 1, the exhaust pipe 4 is communicated with the compact 16, and the exhaust pipe 4 is mounted on the upper surface of the compact 16. Since some of the powder is light in weight and is discharged from the gas outlet 3 together with the gas, the gas discharge pipe 4 is connected to the fine powder box 16 in order to increase the powder collection rate.

Referring to fig. 1, a filtering mechanism 17 is communicated with the side surface of the fine powder box, the other end of the filtering mechanism 17 is connected with a vacuum pump 18, and an output port of the vacuum pump 18 is communicated with an input port of the feeding pipe. The filter mechanism 17 is provided to filter the gas discharged to reduce dust pollution. The vacuum pump 18 is used to slightly apply negative pressure to the entire duct to allow dust to reach the collection box more quickly, and to prevent dust from being deposited in the duct due to insufficient pneumatic power for transportation at a later stage. The vacuum pump 18 draws gas from the input side and has an output side, and the output gas is recirculated to the input of the feed pipe 1, forming a closed gas circulation device. Sealing gaskets are arranged at the connecting parts of the pipelines, so that dust leakage and atmosphere pollution are prevented.

The utility model discloses a theory of operation is:

during operation, powder is conveyed by pneumatic power, enters the feeding pipe 1 from the input port, enters the cyclone cavity 21, the cyclone separator separates gas-powder mixture, in the separation process, gas upwards passes through the exhaust port 3, the powder slides along the inner surface of the conical screen 6, fine powder passes through the screen holes 20, coarse powder cannot pass through the screen holes 20, screening is further completed, the coarse powder and the fine powder are separated from each other and then enter the collecting box through respective pipelines, wherein a small amount of fine powder possibly exists in the gas exhausted from the exhaust port 3, and therefore the fine powder is also discharged into the fine powder box 16, in order to prevent the powder in the fine powder box 16 from entering the vacuum pump 18, the filtering mechanism 17 is additionally arranged in front of the vacuum pump 18, the vacuum pump 18 conveys the extracted gas to the input port again, and a process of gas circulation flowing is.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a closed powder screening environmental protection equipment, its characterized in that includes cyclone and defeated powder pipeline, last feed inlet (2), gas vent (3) and the middlings mouth (9) of having of cyclone, feed inlet (2) link to each other with inlet pipe (1), gas vent (3) link to each other with blast pipe (4), middlings mouth (9) link to each other with middlings pipe (10), and cyclone's the latter half is formed with the screen cloth preparation, and the equipartition has sieve mesh hole (20) on it, and cyclone wraps up outward has collection powder shell (13), and the position that is close to the bottom surface on the collection powder shell (13) side is opened there is farings mouth (14), and farings mouth (14) are connected with fine powder pipe (15), gas vent (3) are at the upper surface of barrel (5), and middlings mouth (9) are the lower port of toper screen cloth (6).

2. The closed powder screening environmental protection equipment of claim 1, wherein the lower half part of the cyclone separator is a conical screen (6), and the lower half part of the cylinder (5) is made of a screen.

3. The closed powder screening environmental protection equipment of claim 1, wherein the lower end of the coarse powder pipe (10) is connected with a coarse powder box (11), a leakage port (12) is reserved on the bottom side surface of the coarse powder box (11), and a manual valve is mounted on the leakage port (12).

4. The closed powder screening environmental protection equipment according to claim 1, wherein the lower end of the fine powder pipe (15) is connected with a fine powder box (16), a powder outlet (19) is reserved on the bottom side surface of the fine powder box (16), and a manual valve is mounted on the powder outlet (19).

5. The closed powder screening environmental protection equipment according to claim 1, wherein the exhaust pipe (4) is communicated with the fine powder box (16), and the upper surface of the fine powder box (16) is installed on the exhaust pipe (4).

6. The closed powder screening environmental protection equipment according to claim 4, wherein the side surface of the fine powder box (16) is communicated with a filtering mechanism (17).

7. The closed powder screening environmental protection equipment of claim 6, wherein the other end of the filtering mechanism (17) is connected with a vacuum pump (18), and an output port of the vacuum pump (18) is communicated with an input port of the feeding pipe (1).