Negative pressure airflow balancing device of crusher

Abstract

The utility model discloses a crusher negative pressure airflow balancing device which comprises a device body and variable pressure relief equipment serving as a crusher circulating pipeline, the device body is located at one end of the circulating pipeline, the circulating pipeline and the upper end and the lower end of the device body are connected with a flow dividing pipeline and a discharging pipeline respectively, and an air inlet is formed in the top end of the device body. A dust discharging pipeline is arranged at the bottom end of the device body, and one end of the dust discharging pipeline is connected with preset dust collection equipment. According to the negative-pressure airflow balancing device of the crusher, through the pressure relief effect of the device body, the air pressure in the circulating pipeline is reduced, so that the pressure intensity of airflow overflowing from a discharging opening of the crusher is reduced, the air pressure of backflow of the crusher is attenuated after the circulating pipeline is subjected to pressure relief of the device body, and air is sucked from a feeding opening of the crusher for balancing; therefore, the problem of overflow of lime powder is avoided, and environmental pollution and material loss are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crusher technical field, concretely is a kind of crusher negative pressure airflow balancing device. BACKGROUND

[0002] In the production process of quicklime, the crushing link is a crucial step. In order to improve production efficiency, it is usually necessary to transport the crushed lime powder. At present, the industry generally uses a circulating positive and negative pressure airflow conveying system to complete this task. The system forms a cycle by setting a dust removal and purification pipeline between the discharge pipe output end and the driven end of the crusher, to realize effective conveying and dust removal of the lime powder.

[0003] In the circulating positive and negative pressure airflow conveying system, the airflow passes through the dust removal and purification pipeline during circulation to reduce the dust content in the airflow. Ideally, the airflow after dust removal and purification can maintain the balance of the circulating system when it circulates back from the driven end. However, in actual application, technicians have found that part of the airflow will overflow from the discharge port of the crusher. The overflowing airflow will carry part of the lime powder out, which not only causes material waste but also pollutes the surrounding environment, adversely affecting worker health and factory environment. The reason for this is that the airflow circulating back from the driven end has little decay and high pressure, which causes the airflow to decompress without timely entering the conveying pipeline. Since the crusher cannot be completely closed for continuous production, the powder continues to be discharged outward. Therefore, a crusher negative pressure airflow balancing device is needed to solve the above problems. SUMMARY

[0004] The utility model aims at providing a kind of crusher negative pressure airflow balancing device to solve the problem of continuous overflow of dust from the discharge port of the crusher caused by circulating airflow in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of crusher negative pressure airflow balancing device, comprising:

[0006] The device body is a variable pressure relief device for the circulating pipeline of the crusher. The device body is located at one end of the circulating pipeline. The circulating pipeline is connected with a shunt pipeline and an exhaust pipeline at the upper and lower ends of the device body respectively. The top end of the device body is provided with an air inlet, and the bottom end of the device body is provided with a dust removal pipeline. One end of the dust removal pipeline is connected with a preset dust collection equipment.

[0007] As a preferred technical scheme of the utility model, a variable pressure channel is provided in the interior of the device body, and the interior bottom end of the device body is in an inclined structure. The dust removal pipeline is horizontally corresponding to the inclined end of the bottom of the device body.

[0008] As the preferred technical scheme of the utility model, dust cloth bags are installed in the variable pressure channel.

[0009] As the preferred technical scheme of the utility model, a valve is installed in the dust discharge pipeline.

[0010] Compared with the prior art, the beneficial effects of the negative pressure air flow balancing device of the crusher are:

[0011] Through the pressure relief effect of the device body, the air pressure inside the circulating pipeline is reduced, thereby reducing the air flow pressure overflowing from the discharge port of the crusher, and the air pressure of the backflow of the crusher is attenuated after the pressure relief of the circulating pipeline through the device body, and air is sucked in from the feed port of the crusher for balancing, thereby avoiding the problem of lime powder overflow, reducing environmental pollution and material loss. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a whole front view structural schematic diagram of the utility model;

[0013] Fig. 2 It is a whole internal side view structural schematic diagram of the utility model;

[0014] Fig. 3 It is a whole top view structural schematic diagram of the utility model.

[0015] In the figure: 1, device body; 2, circulating pipeline; 3, shunt pipeline; 4, discharge pipeline; 5, air inlet; 6, dust discharge pipeline; 7, valve; 8, variable pressure channel; 9, dust cloth bag. DETAILED DESCRIPTION

[0016] Please refer to Figs. 1-3 The utility model provides a technical scheme: a negative pressure air flow balancing device of a crusher, which comprises:

[0017] The device body 1 is a variable pressure relief equipment of the circulating pipeline 2 of the crusher, the device body 1 is located at one end of the circulating pipeline 2, the circulating pipeline 2 is respectively connected with the shunt pipeline 3 and the discharge pipeline 4 at the upper and lower ends of the device body 1, the top end of the device body 1 is provided with the air inlet 5, and the bottom end of the device body 1 is provided with the dust discharge pipeline 6, one end of the dust discharge pipeline 6 is connected with a preset dust collection equipment, the device body 1 is a pressure relief port of the circulating pipeline 2, through the shunt of the shunt pipeline 3, the discharge pipeline 4 and the dust discharge pipeline 6, 5% of the air pressure inside the circulating pipeline 2 can be reduced, the air pressure at one end of the circulating pipeline 2 of the crusher is insufficient, air needs to be sucked in from the discharge port of the crusher for balancing, thereby avoiding the overflow of lime powder from the discharge port of the crusher.

[0018] The inside of the device body 1 is provided with a pressure changing channel 8, and the bottom end of the inside of the device body 1 is in an inclined structure, the dust exhaust pipeline 6 horizontally corresponds to the bottom inclined end of the device body 1, and the bottom inclined arrangement of the device body 1 can ensure that the falling lime powder of the dust removal cloth bag 9 is guided to the inside of the dust exhaust pipeline 6 and is discharged, so as to avoid the accumulation of lime powder at the bottom of the pressure changing channel 8.

[0019] The dust removal cloth bag 9 is installed in the pressure changing channel 8, the upper and lower ends of the dust removal cloth bag 9 are connected with the shunt pipeline 3 and the exhaust pipeline 4 respectively, the pressure changing channel 8 is a hollow structure, so that the dust removal cloth bag 9 has a certain gap with the device body 1, and since the crusher circulating pipeline 2 contains a small amount of lime powder, the lime powder is further filtered out through the dust removal cloth bag 9.

[0020] The valve 7 is installed in the inside of the dust exhaust pipeline 6, the dust exhaust pipeline 6 can control the air flow discharge amount through the valve 7, the inside air of the device body 1 is extracted through the dust exhaust pipeline 6, the outside air is sucked through the air inlet 5 to balance, the surface of the dust removal cloth bag 9 is impacted by the air flow sucked through the air inlet 5, the dust on the surface of the dust removal cloth bag 9 is simply cleaned, and the service life of the dust removal cloth bag 9 is improved.

[0021] Working principle: the dust exhaust pipeline 6 discharges the lime powder in the inside of the device body 1 through the dust suction negative pressure air flow, the suction force generated interferes with the transportation of the circulating pipeline 2, part of the air flow enters the inside of the device body 1 through the shunt pipeline 3, is removed through the dust removal cloth bag 9, and then is returned to the inside of the circulating pipeline 2 from the exhaust pipeline 4, the shunt pipeline 3 and the exhaust pipeline 4 have a pressure difference, part of the air flow is discharged by the dust exhaust pipeline 6, since the air flow discharged by the shunt pipeline 3 is limited, it is not enough to discharge the lime powder in the inside of the device body 1 by the negative pressure air flow of the dust exhaust pipeline 6, the air flow is discharged to the inside of the device body 1 through the air inlet 5 to enhance the suction force of the dust exhaust pipeline 6, so as to avoid the blockage of the dust exhaust pipeline 6, the air pressure of the circulating pipeline 2 is attenuated after the pressure relief of the device body 1, and the air is sucked from the feeding port of the crusher to balance, so as to avoid the problem of lime powder overflow.

Claims

1. A negative pressure airflow balancing device for a crusher, characterized in that, include: The device body (1) is a variable pressure relief device for the crusher circulation pipe (2). The device body (1) is located at one end of the circulation pipe (2). The circulation pipe (2) and the device body (1) are respectively connected to the upper and lower ends of the device body (1) by a diversion pipe (3) and a discharge pipe (4). The top of the device body (1) is provided with an air inlet (5), and the bottom of the device body (1) is provided with a dust discharge pipe (6). One end of the dust discharge pipe (6) is connected to a preset dust collection device.

2. The negative pressure airflow balancing device for a crusher according to claim 1, characterized in that: The device body (1) has a transformer channel (8) inside, and the bottom of the device body (1) has an inclined structure.

3. The negative pressure airflow balancing device for a crusher according to claim 1, characterized in that: The device body (1) has a transformer channel (8) inside, and the bottom of the device body (1) is inclined. The dust discharge pipe (6) is horizontally aligned with the inclined bottom of the device body (1).

4. The negative pressure airflow balancing device for a crusher according to claim 1, characterized in that: A valve (7) is installed inside the dust exhaust pipe (6).

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