Explosion-proof flat bag-type dust collector

Abstract

The utility model discloses an anti-explosion flat bag-type dust collector which comprises a cylindrical shell, a conical bottom bin is formed at the bottom of the cylindrical shell, the interior of the cylindrical shell sequentially comprises an air inlet cavity, a separation cavity and an exhaust cavity from bottom to top, a tangential air inlet communicated with the air inlet cavity is formed in the bottom of one side of the cylindrical shell, and an air outlet communicated with the separation cavity is formed in the bottom of the other side of the cylindrical shell. The interior of the air inlet cavity is communicated with the separation cavity, a flat cloth bag for filtering dust is formed in the separation cavity, and an air outlet is formed in one side of the exhaust cavity. The flat cloth bag is adopted, so that the height of equipment can be reduced to a certain extent.

Description

Technical Field

[0001] The present invention relates to industrial dust removal, and in particular to an explosion-proof flat bag dust collector. Background Art

[0002] Dust collectors can be used for dust control in conditions such as limited installation height, high dust concentration, explosive dust, and high temperature. They are especially suitable for industries such as grain and oil, chemicals, and pharmaceuticals.

[0003] Traditional circular bag dust collectors have a high negative pressure resistance capability, but under the condition of a certain total filtration area or air volume, the selection height of the bag and thus the equipment selection height is relatively high.

[0004] Under working conditions where dust has explosive characteristics, according to the requirements of Chapter 4.3.2 of the "GB / T 15605-2008 Dust Explosion Pressure Relief Code", if there are obstacles inside the container, it should be ensured that the pressure relief process is not blocked by the obstacles. For example, the filter bag or filter cartridge should not block the pressure relief port. If it is unavoidable to avoid obstacles blocking the pressure relief port, a reasonable pressure relief efficiency should be used in the calculation of the pressure relief area.

[0005] In order to meet this requirement, traditional round bag dust collectors, which are of a relatively high height, generally need to be raised to reserve an explosion relief channel for the explosion relief device.

[0006] Under working conditions with high dust concentration, the airflow direction is generally changed by the baffle plate, and large dust particles can settle into the ash hopper first. However, the high-concentration air intake airflow needs to avoid the height of the equipment explosion relief device to prevent dust from causing wear on the explosion relief device. Utility Model Content

[0007] The utility model aims to provide an explosion-proof flat bag dust collector, which adopts flat bags and can reduce the height of the equipment to a certain extent.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0009] An embodiment of the present application discloses an explosion-proof flat cloth bag dust collector, comprising a cylindrical shell, a conical bottom bin being formed at the bottom of the cylindrical shell, the interior of the cylindrical shell comprising an air inlet chamber, a separation chamber and an exhaust chamber from bottom to top, a tangential air inlet connected to the air inlet chamber being formed at the bottom of one side of the cylindrical shell, the interior of the air inlet chamber being connected to the separation chamber, a flat cloth bag for filtering dust being formed inside the separation chamber, and an air outlet being formed on one side of the exhaust chamber.

[0010] Preferably, in the above-mentioned explosion-proof flat bag dust collector, a spiral channel is formed inside the air inlet cavity.

[0011] Preferably, in the above-mentioned explosion-proof flat cloth bag dust collector, the flat cloth bag is installed on a keel frame, the keel frame is arranged in the separation chamber, and the flat cloth bag separates the separation chamber and the exhaust chamber.

[0012] Preferably, in the above-mentioned explosion-proof flat bag dust collector, a discharge port is formed at the bottom of the conical bottom bin.

[0013] Preferably, in the above-mentioned explosion-proof flat bag dust collector, an inspection port is formed on one side of the bottom of the conical bottom bin.

[0014] Preferably, in the above-mentioned explosion-proof flat bag dust collector, the cylindrical shell is installed on a three-dimensional bracket.

[0015] Preferably, in the above-mentioned explosion-proof flat bag dust collector, an explosion relief device is formed on one side of the separation chamber.

[0016] Preferably, in the above-mentioned explosion-proof flat bag dust collector, an exhaust valve is formed on one side of the exhaust chamber.

[0017] Preferably, in the above-mentioned explosion-proof flat bag dust collector, the separation chamber and the exhaust chamber are respectively equipped with monitoring valves.

[0018] Compared with the prior art, the advantages of the present invention are: compared with the traditional round bag dust collector, this solution retains the negative pressure resistance characteristics of the round shell, and under the conditions of a certain total filtration area / a certain equipment shell diameter, a flat bag is used to filter dust. Due to the large filtration area of ​​the flat bag, the bag height / equipment height can be effectively reduced. At the same time, an explosion relief channel can be reserved without increasing the flat bag height / equipment height. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 Shown is a schematic diagram of an explosion-proof flat bag dust collector in an embodiment of the utility model;

[0021] Figure 2 The figure shows a side view of an explosion-proof flat bag dust collector in an embodiment of the utility model;

[0022] Figure 3 Shown is a top view of an explosion-proof flat bag dust collector in an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to describe the technical solutions in the embodiments of the utility model in detail. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Combination Figure 1 As shown, the explosion-proof flat bag dust collector 100 includes a cylindrical shell 101, a conical bottom bin 102 is formed at the bottom of the cylindrical shell 101, the interior of the cylindrical shell 101 includes an air inlet chamber 103, a separation chamber 104 and an exhaust chamber 105 from bottom to top, a tangential air inlet 106 connected to the air inlet chamber 103 is formed at the bottom of one side of the cylindrical shell 101, the interior of the air inlet chamber 103 is connected to the separation chamber 104, a flat cloth bag 107 for filtering dust is formed inside the separation chamber 104, and an air outlet 108 is formed on one side of the exhaust chamber 105.

[0025] In this embodiment, compared with the traditional circular bag dust collector, this solution retains the negative pressure resistance characteristics of the circular shell. Under the conditions of a certain total filtration area / a certain equipment shell diameter, a flat bag is used to filter the dust. Due to the large filtration area of ​​the flat bag, the bag height / equipment height can be effectively reduced. At the same time, an explosion relief channel can be reserved without increasing the flat bag height / equipment height.

[0026] At the same time, at the position of the traditional air inlet, the design of the air inlet baffle is changed to a tangential air inlet design, which can more effectively pre-treat high-concentration dust and prevent dust from causing wear on the explosion relief device.

[0027] The core filter element of the dust collector, the filter bag, can be selected according to the actual dust characteristics / working conditions, such as polypropylene PP, polyester PE, homopolymer DT, polytetrafluoroethylene PTFE, glass fiber, etc. This solution retains this feature, using flat cloth bags as the core filter element and pulse spraying for online dust cleaning.

[0028] This solution can be applied to dust control in working conditions such as limited installation height, high dust concentration, explosive dust, high temperature, etc., and is especially suitable for grain, oil, chemical, pharmaceutical and other industries.

[0029] Furthermore, a spiral channel is formed inside the air inlet cavity 103 .

[0030] In this embodiment, the airflow is prevented from directly impacting the flat cloth bag.

[0031] Furthermore, the flat cloth bag 107 is installed on the keel frame 109 , the keel frame 109 is disposed in the separation chamber 104 , and the flat cloth bag 107 separates the separation chamber 104 from the exhaust chamber 105 .

[0032] In this embodiment, it is ensured that the flat cloth bag is installed firmly and reliably.

[0033] Furthermore, a discharge port 110 is formed at the bottom of the conical bottom bin 102. An inspection port 111 is formed at one side of the bottom of the conical bottom bin 102.

[0034] In this embodiment, it is used for discharging and maintenance.

[0035] Furthermore, the cylindrical housing 101 is mounted on a three-dimensional bracket 112 .

[0036] In this embodiment, the firmness of the entire structure is ensured.

[0037] Furthermore, an explosion relief device 113 is formed on one side of the separation chamber 104 .

[0038] In this embodiment, combined Figure 3 The direction of the middle arrow is the explosion relief direction. The height of the explosion relief device in this solution is not affected by the height of the bag, so the equipment is not too high.

[0039] Furthermore, an air extraction valve 114 is formed on one side of the exhaust chamber 105 .

[0040] In this embodiment, it is used to improve the ventilation efficiency.

[0041] Furthermore, the separation chamber 104 and the exhaust chamber 105 are respectively provided with monitoring valves 115 .

[0042] In this embodiment, it is used to monitor the pressure to prevent overpressure or other problems.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0044] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An explosion-proof flat bag dust collector, characterized in that: It includes a cylindrical shell, a conical bottom bin is formed at the bottom of the cylindrical shell, the interior of the cylindrical shell includes an air inlet chamber, a separation chamber and an exhaust chamber from bottom to top, a tangential air inlet connected to the air inlet chamber is formed at the bottom of one side of the cylindrical shell, the interior of the air inlet chamber is connected to the separation chamber, a flat cloth bag for filtering dust is formed inside the separation chamber, and an air outlet is formed on one side of the exhaust chamber.

2. The explosion-proof flat bag dust collector according to claim 1 is characterized in that: A spiral channel is formed inside the air inlet cavity.

3. The explosion-proof flat bag dust collector according to claim 1 is characterized in that: The flat cloth bag is installed on a keel frame, the keel frame is arranged in the separation chamber, and the flat cloth bag separates the separation chamber from the exhaust chamber.

4. The explosion-proof flat bag dust collector according to claim 1, characterized in that: A discharge port is formed at the bottom of the conical bottom bin.

5. The explosion-proof flat bag dust collector according to claim 1, characterized in that: An inspection port is formed on one side of the bottom of the conical bottom bin.

6. The explosion-proof flat bag dust collector according to claim 1, characterized in that: The cylindrical shell is installed on the three-dimensional bracket.

7. The explosion-proof flat bag dust collector according to claim 1, characterized in that: An explosion relief device is formed on one side of the separation chamber.

8. The explosion-proof flat bag dust collector according to claim 1, characterized in that: An air extraction valve is formed on one side of the exhaust cavity.

9. The explosion-proof flat bag dust collector according to claim 1, characterized in that: The separation chamber and the exhaust chamber are respectively equipped with monitoring valves.

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