Dust absorption device of pulverizer

Abstract

The utility model discloses a dust absorption device of a crusher, and relates to the technical field of crushers. The pulverizer comprises a pulverizer body, the top of the pulverizer body is fixedly connected with a feeding pipe, and the bottom of the pulverizer body is fixedly connected with a discharging pipe; the feeding closing assembly is mounted on the feeding pipe, and the feeding closing assembly is automatically opened and closed when the materials to be crushed enter the crusher body; the discharging expansion assembly is mounted on the discharging pipe; the air inlet end of the exhaust fan is connected with the feeding closing assembly and the discharging expanding assembly through pipelines; and the dust removal bin is placed on one side of the pulverizer body and connected with the output end of the exhaust fan through a pipeline, and the dust removal bin is used for filtering dust sucked out by the exhaust fan. The absorption device has the beneficial effects that all the absorption components are independent of the crusher body for later-stage addition, and structural modification on the original crusher body is not needed.

Description

Technical Field

[0001] This utility model relates to the field of pulverizer technology, specifically to a dust absorption device for pulverizers. Background Technology

[0002] With the rapid development of society and economy, the manufacturing industry is also developing faster and faster. Among them, there is a need for metal crushing and recycling. Metal crushers are machines that crush scrap metal materials. Depending on the material being crushed, they can also be called scrap iron crushers, aluminum can crushers, scrap steel crushers, paint bucket crushers, etc. These are all general metal crushing equipment. When a metal crusher is configured with a qualified production line device, it becomes a perfect metal crushing production line equipment, which is an ideal processing equipment for metal smelting, metal recycling and steel enterprises. Twin-shaft crushers are the first choice for crushing brittle materials with a hardness of less than medium, such as shavings and water-resistant materials. Metal crushers are suitable for installation in fixed locations to centrally process chips. Dust removal is required during the metal crushing process.

[0003] However, adding a dust absorption device to an existing crusher requires structural modifications, which not only increases the modification cost but also affects the stability and production efficiency of the equipment. Summary of the Invention

[0004] The purpose of this invention is to address the problem that adding a dust absorption device to a pulverizer requires structural modifications to the pulverizer in the existing technology, and to provide a dust absorption device for a pulverizer.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dust absorption device for a pulverizer, comprising...

[0006] The pulverizer body has a feed pipe fixedly connected to its top and a discharge pipe fixedly connected to its bottom.

[0007] A feeding closure assembly is installed on the feeding pipe. The feeding closure assembly automatically opens and closes as the material to be crushed enters the crusher body.

[0008] The discharge extension assembly is installed on the discharge pipe;

[0009] An exhaust fan, wherein the air inlet of the exhaust fan is connected to the feed closure assembly and the discharge expansion assembly via a pipe;

[0010] The dust collection chamber is placed on one side of the crusher body and connected to the output end of the exhaust fan through a pipe. The dust collection chamber is used to filter the dust sucked out by the exhaust fan.

[0011] Furthermore, the feed closing assembly includes a sleeve, a valve plate, and a reset shaft, wherein the valve plate and the sleeve are rotatably connected via the reset shaft.

[0012] Furthermore, the valve plate consists of two pieces, each with a reset shaft on its outer side; in the closed state, the inner sides of the two valve plates match.

[0013] Furthermore, the discharge extension assembly includes an arc-shaped plate, an elastic connector, and a cloth sleeve. The arc-shaped plate consists of two pieces connected by the elastic connector. The arc-shaped plate is fitted onto the discharge pipe via the elastic connector, and the cloth sleeve is connected to the two arc-shaped plates.

[0014] Furthermore, the dust removal chamber is filled with water, and the pipe connected to the exhaust fan extends into the water body. The top of the dust removal chamber is provided with an air outlet.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are as follows: all absorption components are installed independently of the crusher body in the later stage, without the need to make structural modifications to the original crusher body. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the feeding closure component 2 in this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Crusher body; 11. Feed pipe; 12. Discharge pipe; 2. Feed closing assembly; 21. Sleeve; 22. Valve plate; 23. Reset shaft; 3. Discharge expansion assembly; 3. Arc plate; 31. Elastic connector; 32. Cloth sleeve; 33. Exhaust fan; 4. Dust removal chamber; 5. Air outlet; 51. Detailed Implementation

[0020] See Figure 1-2As shown, the technical solution adopted in this specific embodiment is: a dust absorption device for a pulverizer, including a pulverizer body 1, a feeding closure assembly 2, a discharge expansion assembly 3, an exhaust fan 4, and a dust collection chamber 5. A feeding pipe 11 is provided at the top of the pulverizer body 1 for feeding the material to be pulverized into the pulverizer; a discharge pipe 12 is fixedly connected at the bottom for discharging the pulverized material. The feeding closure assembly 2 is installed on the feeding pipe 11 and can automatically open and close as the material to be pulverized enters. It includes a sleeve 21, a valve plate 22, and a reset shaft 23. The valve plate 22 is rotatably connected to the sleeve 21 via the reset shaft 23. There are two valve plates 22, and a reset shaft 23 is provided on the outer side of each valve plate 22. In the closed state, the inner sides of the two valve plates 22 fit together to form a sealing structure, preventing dust from overflowing. When material enters, valve plate 22 opens automatically under the force of gravity. After the material passes through, valve plate 22 closes automatically under the action of torsion spring (not shown in the figure) to ensure the sealing of the feeding process.

[0021] The discharge expansion assembly 3 is installed on the discharge pipe 12 and includes two arc-shaped plates 31, an elastic connector 32, and a cloth sleeve 33. The two arc-shaped plates 31 are connected by the elastic connector 32, and the arc-shaped plates 31 are fitted onto the discharge pipe 12 via the elastic connector 32. The cloth sleeve 33 is connected to the two arc-shaped plates 31 to form an expandable discharge channel. This design can accommodate materials of different sizes while reducing dust escape from the discharge port. The air inlet of the exhaust fan 4 is connected to the feed closure assembly 2 and the discharge expansion assembly 3 via a pipe to generate negative pressure during the crushing process, drawing dust into the dust collection system.

[0022] The dust collection chamber 5 is placed on one side of the crusher body 1 and connected to the output end of the exhaust fan 4 via a pipe. The dust collection chamber 5 is filled with water, and the pipe connecting to the exhaust fan 4 extends into the water. Dust particles are filtered after entering the water with the airflow, and clean air is discharged from the air outlet 51 at the top of the dust collection chamber 5. This wet dust collection method can effectively capture fine dust and reduce air pollution.

[0023] During installation, first install the feed closing assembly 2, fixing the sleeve 21 to the feed pipe 11. The fixing method is conventional and will not be described in detail here. Then install the valve plate 22 and the reset shaft 23, ensuring that the valve plate 22 can rotate freely and fits tightly when closed to prevent dust leakage. Next, install the discharge expansion assembly 3, fitting the arc plate 31 onto the discharge pipe 12 via the elastic connector 32. The cloth sleeve 33 unfolds with the arc plate 31 to accommodate the discharge requirements of different materials. Then install the exhaust fan 4, fixing it near the crusher body 1, and connecting the air inlet pipe of the exhaust fan 4 to the feed closing assembly 2 and the discharge expansion assembly 3, ensuring that the pipe connection is tight and there is no air leakage. Finally, install the dust collection chamber 5, placing it on one side of the crusher body 1, and connecting the output pipe of the exhaust fan 4 to the dust collection chamber 5, ensuring that the pipe extends into the water body. Check that the air outlet 51 at the top of the dust collection chamber 5 is unobstructed to ensure the dust removal effect.

[0024] After installation, start the crusher and exhaust fan 4, and test the automatic opening and closing functions of the feed closing assembly 2 and the discharge expansion assembly 3, observing whether they can automatically adjust according to the entry and exit of materials. Simultaneously, check the dust filtration effect of the water in the dust collection chamber 5 to ensure that dust is effectively captured and clean air is discharged from the air outlet 51. Through these steps, the dust absorption device for the crusher is installed, effectively reducing dust pollution, improving the working environment, and increasing production efficiency. This device has a simple structure, is easy to operate, and is suitable for various crushing operation scenarios, possessing high practicality and environmental value.

[0025] The working principle of this utility model:

[0026] Feeding stage:

[0027] When metal is fed through the feed pipe 11, the valve plate 22 of the feed closing assembly 2 is automatically rotated and opened around the reset shaft 23 under the action of the material's gravity, and the material smoothly enters the crusher body 1.

[0028] After the material passes through, the valve plate 22, having lost its external support, automatically closes under the action of the torsion spring, forming a sealed state to prevent dust from escaping from the feed inlet during the crushing process.

[0029] Crushing and dust generation:

[0030] The crusher body 1 crushes the material, generating a large amount of dust in the process. During this time, the exhaust fan 4 continuously operates, drawing in dust-laden air from the feed closure assembly 2. Even if metal continues to enter the valve 22 from the feed inlet during crushing and the valve cannot close, the exhaust fan 4 can still create a localized negative pressure near the feed inlet. Even if the valve 22 is open, the dust is still guided by the negative pressure airflow into the exhaust duct, rather than spreading outwards.

[0031] Dust capture and guidance:

[0032] Dust control at the discharge port: When the crushed material falls through the discharge pipe 12, the exhaust fan 4 sucks up the dust at the discharge port through the pipe connected to the discharge expansion component 3.

[0033] Dust filtration stage:

[0034] Dust-laden gas is transported to dust removal chamber 5 by exhaust fan 4, and the end of the connecting pipe extends into the water body inside the chamber. After the dust comes into contact with the water, it is adsorbed and settled, thus achieving gas-solid separation.

[0035] The purified gas is discharged through the air outlet 51 at the top of the dust removal chamber 5, while the dust particles remain in the water.

[0036] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A dust absorption device for a pulverizer, characterized in that: include The crusher body (1) has a feed pipe (11) fixedly connected to the top and a discharge pipe (12) fixedly connected to the bottom. The feeding closure assembly (2) is installed on the feeding pipe (11). The feeding closure assembly (2) automatically opens and closes as the material to be crushed enters the crusher body (1). The discharge extension assembly (3) is installed on the discharge pipe (12); The exhaust fan (4) has its air inlet end connected to the feed closure assembly (2) and the discharge expansion assembly (3) via a pipe; The dust collection chamber (5) is placed on one side of the crusher body (1) and connected to the output end of the exhaust fan (4) through a pipe. The dust collection chamber (5) is used to filter the dust sucked out by the exhaust fan (4). The feeding closure assembly (2) includes a sleeve (21), a valve plate (22), and a reset shaft (23). The valve plate (22) and the sleeve (21) are rotatably connected through the reset shaft (23). The valve plate (22) consists of two pieces, and a reset shaft (23) is provided on the outer side of each valve plate (22); when in the closed state, the inner sides of the two valve plates (22) match. The discharge extension assembly (3) includes an arc plate (31), an elastic connector (32), and a cloth sleeve (33). The arc plate (31) consists of two pieces, which are connected by the elastic connector (32). The arc plate (31) is fitted onto the discharge pipe (12) by the elastic connector (32). The cloth sleeve (33) is connected to the two arc plates (31). The dust removal chamber (5) is filled with water, and the pipe connected to the exhaust fan (4) extends into the water body. The top of the dust removal chamber (5) is provided with an air outlet (51).

Images