A multi-point side air inlet self-cleaning dust removal device and method

Abstract

The present invention relates to the technical field of dust removal equipment, and particularly relates to a multi-point side-inlet self-cleaning dust removal equipment and method, including a dust removal device which is internally provided with filter bags and is configured with a pulse generating device, and a waste discharging auger is arranged at the lower part; a cotton fiber separation device, including a plurality of separation units, which are respectively arranged on the side of the dust removal device and are independently communicated with it through ventilation ducts, and the air flow inlet direction is inclined towards the side of the waste discharging auger; in the present invention, a plurality of separation units for filtering cotton fibers are arranged on the side of the dust removal device to form multi-point side-inlet air, reduce the wind speed entering the filter bags in the dust removal device, and is beneficial to reducing the deformation and damage of the filter bags and their skeletons caused by the wind speed.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal equipment, and particularly relates to a multi-point side air inlet self-cleaning dust removal equipment and method. Background Art

[0002] Cotton processing enterprises generally use pneumatic methods to transport materials, which inevitably causes the overflow of air mixed with cotton fibers and dust, bringing adverse effects to cotton production and processing and the environment.

[0003] Chinese Utility Model Patent with application number 2020220986090 discloses a multi-functional dust collector, a cotton fiber separation box and a dust collector. An air inlet channel and an air inlet are provided at the top of the cotton fiber separation box. A separation mesh cylinder for separating cotton fibers is vertically arranged below the air inlet channel in the cotton fiber separation box. The air outlet of the cotton fiber separation box is connected to the air inlet of the dust removal box. The dust removal box uses filter bags for filtration, and the dust on the filter bags is shaken off by a pulse generating device and enters a waste discharge auger. During the dust removal process, the cotton fibers in the dusty air are separated and recovered in a timely manner, realizing the functions of cotton fiber recovery and dust removal.

[0004] Since the dust removal box uses a single-end air inlet method, high wind speeds are likely to blow impurities and dust to the other end and form accumulations, causing blockages in the waste discharge auger, thereby affecting the normal operation of the equipment; in addition, high wind speeds are likely to cause deformation of the inner support skeleton of the blown filter bag and damage to the filter bag. Summary of the Invention

[0005] The purpose of the present invention is to provide a multi-point side air inlet self-cleaning dust removal equipment and method to solve the problems of impurity accumulation and filter bag damage caused by high wind speeds formed by single-end air inlet in the prior art. To achieve the above purpose, the present invention is solved by the following technical solutions.

[0006] In a first aspect, the present invention provides a multi-point side air inlet self-cleaning dust removal equipment, including:

[0007] A dust removal device, which is internally provided with filter bags and is configured with a pulse generating device, and a waste discharge auger is provided at the lower part;

[0008] A cotton fiber separation device, including a plurality of separation units, which are respectively arranged on the side of the dust removal device and are each independently connected to it through a ventilation duct, and the air flow direction inclines towards the side of the waste discharge auger.

[0009] As a further technical solution, a plurality of ventilation ducts are provided between each of the separation units and the dust removal device, and are arranged in sequence from top to bottom.

[0010] As a further technical solution, the cross-sectional area of the ventilation duct between the separation unit and the dust removal device gradually increases from its air inlet to its air outlet.

[0011] As a further technical solution, an air flow accommodation space is provided in front of the filter screen of the separation unit, and the air flow accommodation spaces of adjacent separation units are communicated with each other.

[0012] As a further technical solution, an air flow accommodation space is provided in front of the filter screen of the separation unit, and the air flow accommodation spaces of each separation unit are communicated with each other.

[0013] As a further technical solution, a plurality of air inlets are provided in the air flow accommodation space.

[0014] As a further technical solution, the included angle between the air flow inlet direction of the separation unit and the horizontal direction is 30 to 45°.

[0015] As a further technical solution, a plurality of the separation units are all arranged on one side of the dust removal device.

[0016] As a further technical solution, a separation mesh cylinder and an inner wall cleaning mechanism thereof are provided in the separation unit.

[0017] In a second aspect, the present invention provides a dust removal method for the multi-point side air inlet self-cleaning dust removal device according to the first aspect, including the following steps:

[0018] A plurality of separation units suck the impurity-containing air and filter the cotton fibers therein; the filtered impurity-containing air is obliquely introduced into the filter bag, and the filter bag is used to separate the impurities and air; the back blowing action of the pulse generating device shakes off the impurities attached to the filter bag, and the air flow introduced by the separation unit timely blows the impurities separated from the filter bag into the impurity discharge auger.

[0019] The beneficial effects of the present invention are as follows:

[0020] (1) In the present invention, a plurality of separation units for filtering cotton fibers are arranged on the side of the dust removal device to form multi-point side air inlet, which reduces the wind speed entering the filter bag of the dust removal device, and is beneficial to reducing the deformation and damage of the filter bag and its skeleton caused by the wind speed; the back blowing action of the pulse generating device shakes off the impurities attached to the filter bag, and the inclined air inlet toward one side of the impurity discharge auger can timely blow the impurities separated from the filter bag into the impurity discharge auger, realizing self-cleaning and avoiding the blockage of the impurity discharge auger caused by dust accumulation.

[0021] (2) In the present invention, an air flow accommodation space is provided in front of the filter screen of the separation unit, and the air flow accommodation space is used to buffer the air flow. The air flow accommodation spaces of adjacent separation units are communicated with each other, so that the total air volume entering passes through a plurality of separation units relatively evenly, and then enters the filter bag of the dust removal device evenly.

[0022] (3) A plurality of ventilation ducts are provided between each separation unit of the present invention and the dust removal device, which is beneficial to increasing the air outlet area; the cross-sectional area of the ventilation duct between the separation unit and the dust removal device gradually increases from its air inlet to the air outlet, further increasing the air outlet area. The increase in the air outlet area can effectively reduce the air outlet speed and mitigate the deformation and damage of the filter bag and its framework caused by the wind speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute a limitation to the present invention. It should also be understood that these drawings are shown for simplicity and clarity and are not necessarily drawn to scale. The present invention will now be described and explained with additional features and details by using the drawings, wherein:

[0024] Figure 1 The isometric view of the multi-point side-inlet self-cleaning dust removal device in the embodiment of the present invention is shown;

[0025] Figure 2 The top view of the multi-point side-inlet self-cleaning dust removal device in the embodiment of the present invention is shown;

[0026] Figure 3 The side view of the multi-point side-inlet self-cleaning dust removal device in the embodiment of the present invention is shown.

[0027] In the figure: 1. Cotton fiber separation device; 11. First separation unit; 12. Second separation unit; 13. Third separation unit; 14. Connecting pipe; 2. Dust removal device; 3. Upper ventilation duct; 4. Lower ventilation duct. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the typical embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] Embodiment 1

[0030] As Figures 1-3 shown, this embodiment provides a multi-point side-inlet self-cleaning dust removal device, including a dust removal device 2 and a cotton fiber separation device 1. The cotton fiber separation device 1 is a primary separation device, mainly used for filtering cotton fibers in the impurity-containing air; the dust removal device 2 is a secondary filtering device, mainly used for filtering impurities such as ash layers in the impurity-containing air.

[0031] In this embodiment, a filter bag is provided in the dust removal device 2 and it is equipped with a pulse generating device, and a waste discharging auger is provided at the lower part; the structure in the patent with the application number 2020220986090 can be adopted, and its specific structure will not be elaborated in detail here.

[0032] The cotton fiber separation device 1 includes a plurality of separation units, which are respectively arranged on the side of the dust removal device 2 and are each independently connected to it through a ventilation duct, and the air flow inlet direction is inclined towards the impurity discharge auger side.

[0033] A plurality of separation units for filtering cotton fibers are arranged on the side of the dust removal device 2 to form multi-point side air inlet, reducing the wind speed entering the filter bags of the dust removal device 2, which is beneficial to reducing the deformation and damage of the filter bags and their skeletons caused by the wind speed; the back blowing action of the pulse generating device shakes off the impurities attached to the filter bags, and the inclined air inlet towards the impurity discharge auger side can blow the impurities separated from the filter bags into the impurity discharge auger in time, realizing self-cleaning and avoiding the blockage of the impurity discharge auger caused by dust accumulation.

[0034] In this embodiment, as Figure 2 shown, the cotton fiber separation device 1 includes three separation units, namely the first separation unit 11, the second separation unit 12 and the third separation unit 13. The three separation units are all arranged on one side of the dust removal device 2, and the pulse generating device is arranged on the other side, which can reduce the occupied space.

[0035] The separation unit adopts the cotton fiber separation box structure in the patent with the application number 2020220986090. A separation mesh cylinder and its inner wall cleaning mechanism are provided in the separation unit. Other specific structures are not elaborated here in detail.

[0036] In this embodiment, an air flow accommodation space is provided in front of the filter screen of the separation unit. The air flow accommodation space serves as a buffer for the air flow. The air flow accommodation spaces of adjacent separation units are connected together, so that the total incoming air volume passes through the three separation units relatively evenly, and then enters the filter bags of the dust removal device evenly.

[0037] The first separation unit 11 and the second separation unit 12 are connected through a pipeline, and the second separation unit 12 and the third separation unit 13 are connected through a pipeline. During the working process, if the air intake of one of them is larger and the air intake of the adjacent one is smaller, part of the air in the separation unit with a larger air intake will enter the adjacent separation unit to ensure the relative balance of the air intake.

[0038] In other embodiments, the air flow accommodation spaces of each separation unit are connected to each other. Different from this embodiment, the first separation unit 11 is also connected to the third separation unit 13.

[0039] The air flow accommodation space of the separation unit is provided with a plurality of air inlets to ensure sufficient air intake.

[0040] As Figure 3As shown in the figure, multiple ventilation ducts are provided between each separation unit and the dust removal device 2, arranged vertically one above the other. In this embodiment, two ventilation ducts are provided between each separation unit and the dust removal device 2, namely the upper ventilation duct 3 and the lower ventilation duct 4. Arranging multiple ventilation ducts is beneficial to increasing the air outlet area. The cross-sectional area of the ventilation duct between the separation unit and the dust removal device gradually increases from its air inlet to the air outlet, further increasing the air outlet area. The increase in the air outlet area can effectively reduce the air outlet speed and mitigate the deformation and damage of the filter bag and its skeleton caused by the wind speed.

[0041] As Figure 3 shown in the figure, the angle between the air flow inlet direction of the separation unit and the horizontal direction is 30 - 45°. The air inlets of the upper ventilation duct 3 and the lower ventilation duct 4 are higher than the air outlets, ensuring that the air flow direction is inclined. In the inclined direction of 30 - 45°, it is easier to drive impurities into the impurity discharge auger.

[0042] Embodiment 2

[0043] This embodiment provides a dust removal method for the multi-point side-inlet self-cleaning dust removal equipment as in Embodiment 1, including the following steps:

[0044] The first separation unit 11, the second separation unit 12, and the third separation unit 13 suck in the impurity-containing air and filter the cotton fibers therein. The filtered impurity-containing air is inclined and introduced into the filter bag through the upper ventilation duct 3 and the lower ventilation duct 4. The filter bag is used to separate the impurities and the air. The back-blowing action of the pulse generating device shakes off the impurities attached to the filter bag, and the air flow introduced through the separation unit blows the impurities separated from the filter bag into the impurity discharge auger in a timely manner.

[0045] Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention all fall within the protection scope of the technical solution of the present invention.

Claims

1. A multi-point side-inlet self-cleaning dust removal device, characterized in that, it includes: a dust removal device, which is internally provided with filter bags and is configured with a pulse generating device, and a waste discharging auger is arranged at the lower part; a cotton fiber separation device, which includes a plurality of separation units, are respectively arranged on the side of the dust removal device and are independently communicated with it through ventilation ducts, and the air flow inlet direction is inclined towards the side of the waste discharging auger; a plurality of ventilation ducts are arranged between each of the separation units and the dust removal device, and are arranged in sequence from top to bottom; the cross-sectional area of the ventilation duct between the separation unit and the dust removal device gradually increases from its air inlet to the air outlet; a plurality of separation units for filtering cotton fibers are arranged on the side of the dust removal device to form multi-point side-inlet air, reducing the wind speed entering the filter bags in the dust removal device, which is beneficial to reducing the deformation and damage of the filter bags and their skeletons caused by the wind speed; the back blowing effect of the pulse generating device shakes off the impurities attached to the filter bags, and the inclined air inlet towards the side of the waste discharging auger can blow the impurities separated from the filter bags into the waste discharging auger in time, realizing self-cleaning and avoiding the blockage of the waste discharging auger caused by dust accumulation; a plurality of the separation units are all arranged on one side of the dust removal device; a separation mesh cylinder and its inner wall cleaning mechanism are arranged inside the separation unit; an air flow accommodating space is arranged in front of the filter screen in the separation unit.

2. A multi-point side-inlet self-cleaning dust removal device according to claim 1, characterized in that, the air flow accommodating spaces of adjacent separation units are communicated together.

3. A multi-point side-inlet self-cleaning dust removal device according to claim 1, characterized in that, the air flow accommodating spaces of each separation unit are communicated with each other.

4. A multi-point side-inlet self-cleaning dust removal device according to claim 2 or 3, characterized in that, a plurality of air inlets are arranged in the air flow accommodating space.

5. A multi-point side-inlet self-cleaning dust removal device according to claim 1, characterized in that, the included angle between the air flow inlet direction of the separation unit and the horizontal direction is 30-45°.

6. A dust removal method of the multi-point side-inlet self-cleaning dust removal device according to any one of claims 1-5, characterized in that, it includes the following steps: a plurality of separation units inhale the impurity-containing air and filter the cotton fibers therein; the filtered impurity-containing air is inclined and introduced into the filter bags, and the filter bags are used to separate the impurities and air; the back blowing effect of the pulse generating device shakes off the impurities attached to the filter bags, and the air flow introduced by the separation unit blows the impurities separated from the filter bags into the waste discharging auger in time.

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