Filter-element-free pipeline dust removal system

Abstract

The invention discloses a dust removal system for a filter-element-free pipeline. The dust removal system comprises at least one dust removal pipe assembly, each dust removal pipe assembly comprises a pipe body, a spray head assembly is arranged in the pipe body, the spray head assembly is connected with a water supply system, and the pipe body is provided with a sewage discharge notch and is connected with a sewage discharge system through the sewage discharge notch.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal, in particular to a filter-free pipeline dust removal system. Background Art

[0002] At present, dust removal technologies mainly include filter element and filter bag dust removal, cyclone dust removal, spray dust removal, electrostatic dust removal and other technologies. However, these technologies all have significant disadvantages. Specifically:

[0003] 1. Regarding the filter element and filter bag technology, the degree that the filter element and filter bag manufacturing technology currently used in dust removal can achieve is: the commonly used 5 to 20μm, which is almost ineffective in reducing PM2.5 (particles below 2.5 microns); in special cases, it can reach 2μm, which will result in a significant reduction in air flow capacity while not having a good effect on reducing PM2.5; high power; difficult to clean; large footprint; and poor dust removal effect.

[0004] 2. As for cyclone dust removal technology, this technology can only handle larger dust particles. It is completely ineffective for fine particles suspended in the air and has no effect on reducing PM2.5.

[0005] 3. Spray dust removal technology will pollute equipment, factory buildings, and roads. The saturated air humidity will seriously affect the safety and failure rate of equipment; it will affect the working environment; the water consumption is large; the dust removal time is long and the effect is poor.

[0006] 4. Electrostatic dust removal technology is ineffective in humid environments; it is not effective in high concentration and large volume conditions; it is greatly affected by air flow speed; it consumes a lot of power; and it is difficult to clean.

[0007] Currently, no effective solutions have been proposed for the technical problems in the above-mentioned related technologies.

[0008] In view of this, the present invention is proposed. Summary of the invention

[0009] The purpose of the present invention is to overcome the above technical deficiencies and provide a filter-free pipeline dust removal system to solve the technical problems in the related art.

[0010] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0011] According to one aspect of the present invention, there is provided a filterless pipeline dust removal system, comprising at least one dust removal pipe assembly; each of the dust removal pipe assemblies comprises a pipe body, a nozzle assembly is provided in the pipe body, the nozzle assembly is connected to a water supply system, the pipe body has a sewage discharge groove, and is connected to a sewage discharge system via the sewage discharge groove.

[0012] Optionally, the water supply system includes an external pressure water pipe arranged on the outside of the pipe body, the external pressure water pipe is connected to an internal pressure water pipe arranged on the inside of the pipe body through a pressure water pipe branch pipe, the water outlet end of the internal pressure water pipe is connected to the water inlet end of the nozzle assembly, and the external pressure water pipe is also connected to a water pump for pumping water to the water supply system.

[0013] Optionally, it also includes a nozzle assembly bracket, which is arranged in the dust removal pipe assembly and connected to the inner wall of the tube body of the dust removal pipe assembly, and the nozzle assembly is arranged on the nozzle assembly bracket.

[0014] Optionally, the sewage discharge system includes a sewage receiving pan connected to the water outlet of the sewage discharge trough, and the bottom end of the sewage receiving pan is connected to the sewage discharge pipe via a sewage connecting pipe.

[0015] Optionally, the water outlet end of the sewage discharge pipe is connected to a water pressure controlled sewage valve.

[0016] Optionally, the dust removal system includes a dust removal main pipe and a dust removal manifold, and the dust removal manifold is connected to the dust removal main pipe as a branch of the dust removal main pipe;

[0017] The dust removal main pipe is composed of one or more dust removal main pipe assemblies connected end to end, and the dust removal manifold is composed of one or more dust removal manifold assemblies connected end to end;

[0018] The dust removal main pipe assembly and the dust removal manifold assembly are both the dust removal pipe assembly.

[0019] Optionally, it also includes a fan, which is arranged at one or more positions of the air path formed by the dust removal main duct and the dust removal manifold.

[0020] Optionally, the tail end of the dust removal main pipe is also connected to a filter-free dust removal device.

[0021] Optionally, a window is provided on the tube body, and a window cover that can be opened and closed or removed is provided on the window.

[0022] The present invention provides a filter-free pipeline dust removal system, which has the following advantages:

[0023] High efficiency and energy saving: Compared with traditional equipment, under the same power, it can process larger air volume, capture dust particles of all sizes without distinction, and achieve better dust removal effect. Under the same air volume, it has lower power.

[0024] High temperature resistance: filter elements and filter bags are mostly made of high molecular polymer materials, which are easy to melt or burn in high temperature environments. Unlike flammable materials such as filter elements and filter bags, this system is not afraid of high temperature environments because it has no filter element.

[0025] Cooling: The water spray or fine water mist system inside it can absorb a large amount of heat in the air and reduce the dust removal temperature.

[0026] No clogging: The water spray or fine water mist system inside the pipe can flush the inside of the pipe at any time to keep the inside of the pipe clean. The dirt in the pipe is discharged by the sewage discharge system.

[0027] Suppressing dust explosion: The water spray or fine water mist system inside eliminates the static electricity of dust particles, increases the relative humidity of the air (supersaturation), and suppresses the collision sparks between dust particles and fan blades, thereby achieving the function of explosion suppression.

[0028] Material saving: no filter elements, filter bags and other original parts, no consumables; the air intake arrangement after the fan reduces the wear of the fan blades.

[0029] Space saving: It is smaller in size compared with other traditional devices with the same processing power.

[0030] Simple structure: The structure is relatively simple, the design is relatively easy, and the design cost is low. Low production cost - Due to the relatively simple structure, small size, light weight, the design and production costs are relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A structural schematic diagram of a filter-free pipeline dust removal system is provided for an embodiment of the present invention;

[0032] Figure 2 for Figure 1 A schematic diagram of the enlarged structure near the manifold;

[0033] Figure 3 for Figure 1 A magnified schematic diagram of the structure near the sewage discharge pipe;

[0034] Figure 4 A schematic diagram of a half-section structure of a dust removal pipe assembly in a filter-free pipe dust removal system is provided for an embodiment of the present invention;

[0035] Figure 5 for Figure 4 A magnified schematic diagram of the structure near the penstock branch;

[0036] In the figure:

[0037] 1- pipe body; 2- nozzle assembly; 3- sewage discharge slot; 4- dust removal main pipe assembly; 5- dust removal manifold assembly; 6- dust removal main pipe connection flange; 7- dust removal manifold connection flange; 8- branch collecting pipe; 9- reducer pipe; 10- elbow joint; 11- fan; 12- filterless dust removal equipment; 13- air outlet; 14- nozzle assembly bracket; 15- internal pressure water pipe; 16- window cover; 17- external pressure water pipe; 18- pressure water pipe branch pipe; 19- pressure water pipe tee; 20- pressure water pipe joint; 21- right angle elbow; 22- sewage receiving pan; 23- sewage receiving pan outlet pipe; 24- sewage connecting pipe; 25- sewage connecting pipe flange; 26- sewage discharge pipe; 27- sewage pipe elbow; 28- sewage vertical extension pipe; 29- water pressure control drain valve. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0039] Combination Figure 1-5 A filter-free pipeline dust removal system provided by an embodiment of the present invention includes at least one dust removal pipe assembly; each dust removal pipe assembly includes a pipe body 1, a nozzle assembly 2 is arranged in the pipe body 1, the nozzle assembly 2 is connected to the water supply system, the pipe body has a sewage discharge groove 3, and is connected to the sewage discharge system through the sewage discharge groove 3.

[0040] In this embodiment, the dust removal pipe assembly includes multiple and is divided into two categories, one is the dust removal main pipe assembly 4, and the other is the dust removal manifold assembly 5, the diameter of the latter is slightly smaller than that of the former. One or more dust removal main pipe assemblies 4 are connected end to end to form a dust removal main pipe. One or more dust removal manifold assemblies 5 are connected end to end to form a dust removal manifold. The dust removal manifold is connected to the dust removal main pipe as a branch, and can be coaxially connected to the dust removal main pipe, or can be non-coaxially connected, such as vertically connected to each other.

[0041] It should be understood that a variety of connection methods can be used between the dust removal main pipe assemblies 4, between the dust removal manifold assemblies 5, and between the dust removal main pipe assembly 4 and the dust removal manifold assembly 5, such as flange connection, welding, socket connection, etc., which are not limited in this embodiment. For example, in this embodiment, the dust removal main pipe assemblies 4 are connected by the dust removal main pipe connection flange 6. The dust removal manifold assemblies 5 are connected by the dust removal manifold connection flange 7. The multiple dust removal manifold assemblies 5 vertically connected to the dust removal main pipe are first connected to the branch collecting pipe 8, and then connected to the dust removal main pipe through the branch collecting pipe 8. The dust removal manifold coaxially arranged with the dust removal main pipe can be connected to the dust removal main pipe through a reducer 9.

[0042] The tail end of the dust removal main pipe can be connected to the fan 11 and the filterless dust removal device 12 through the elbow 10, etc., and then the purified gas is discharged from the air outlet 13 of the filterless dust removal device 12. The filterless dust removal device 12 is a prior art and will not be described in detail here. It should be understood that the fan 11 can be set Figure 1 The position shown can also be set at other positions of the wind path. The form of the fan 11 (axial flow fan or centrifugal fan or other type of fan, its model, size, etc. are not limited). The number, position, series and parallel connection of the fans can be in various forms, all of which fall within the scope of protection of this patent.

[0043] The structural layout described in the above process is the "air suction mode" of the fan of this system; the fan can also be installed in the "dust removal main pipe" or 1 to n fans can be installed in any position in the middle of the "dust removal manifold" to achieve the "air suction and air supply mode"; 1 to n fans can also be installed at the starting end of 1 to n "dust removal manifolds" to achieve the "air supply mode". The latter two methods are only different in the number of fans and the installation position of the fans, which are not shown in the figure here.

[0044] Below, as an example, the specific structure of the dust removal pipe assembly is further introduced. It should be understood that in the following embodiments, the structure of the dust removal pipe assembly can be used as the structure of the dust removal main pipe assembly 4, or as the structure of the dust removal manifold assembly 5. In the following embodiments, it will not be repeated. The dust removal pipe assembly also includes a nozzle assembly bracket 14. The nozzle assembly bracket 14 is arranged in the tube body 1 of the dust removal pipe assembly and is connected to the inner wall of the tube body 1 of the dust removal pipe assembly. The nozzle assembly 2 is arranged on the nozzle assembly bracket 14. For example, the nozzle assembly 2 can be annular, and multiple nozzles are evenly arranged along the circumference of the annular ring to form a nozzle assembly 2. The nozzle assembly 2 is connected to the internal pressure water pipe 15 arranged inside the tube body 1, and water is supplied to the nozzle assembly 2 through the internal pressure water pipe 15.

[0045] A window is also provided on the surface of the tube body 1, on which a window cover 16 is provided. The window cover 16 is connected to the tube body 1 in an openable or detachable manner. Thus, by opening the window cover 16, the internal condition of the tube body 1 can be observed, so that the dust removal tube assembly can be cleaned or replaced and repaired in time when a fault or blockage occurs.

[0046] One or more sewage discharge slots 3 are also provided at the bottom of the pipe body 1 , which can be arranged at intervals along the length direction of the pipe body 1 so as to discharge sewage formed by the water mist sprayed by the nozzle assembly 2 and the particles in the pipe body 1 .

[0047] As an example, the water supply system also includes an external pressure water pipe 17 arranged on the outside of the pipe body 1. The entire dust removal main pipe or dust removal manifold can share an external pressure water pipe 17, which can be coaxially arranged in parallel with the dust removal main pipe and / or the dust removal manifold. The external pressure water pipe 17 is connected to the internal pressure water pipe 15 in each section of the dust removal pipe assembly through a pressure water pipe branch pipe 18, so as to divert water to the interior of each dust removal pipe assembly. For example, the external pressure water pipe 17 can include multiple sections, and the end of each section is connected to a pressure water pipe tee 19, one end of the tee is connected to the adjacent other end of the pressure water pipe, and the other end is connected to the pressure water pipe branch pipe 18, and the pressure water pipe branch pipe 18 is connected to the internal pressure water pipe 15 through a pressure water pipe joint 20 and a right-angle elbow 21. The water pump can be built into the filterless dust removal device or external (not shown in the figure), which is connected to the external pressure water pipe 17, so as to pump water into each dust removal pipe assembly.

[0048] As an example, the sewage discharge system includes a sewage receiving pan 22 connected to the water outlet of the sewage discharge slot 3, and the sewage receiving pan 22 can be arranged at an angle to facilitate sewage discharge. The bottom end of the sewage receiving pan 22 is connected to a sewage discharge pipe 26 through a sewage receiving pan outlet pipe 23, a sewage connecting pipe 24, and a sewage connecting pipe flange 25. The sewage discharge pipe 26 can be shared by multiple dust removal pipe assemblies, that is, each dust removal pipe assembly is connected to a common sewage discharge pipe 26 coaxially arranged in parallel along the pipe body through its sewage receiving pan outlet pipe 23 and sewage connecting pipe 24.

[0049] The water outlet of the sewage discharge pipe 26 can be connected to the sewage vertical extension pipe 28 through the sewage pipe elbow 27, and then connected to the water pressure control sewage valve 29. When the water pressure reaches the threshold, it is automatically opened to discharge sewage.

[0050] Sewage pipelines can be set up with 1 to n sewage pipelines according to the diameter of the sewage pipeline, the flow slope (pipeline layout slope), the drop and the amount of sewage. The sewage is discharged into the preset sewage pipeline (not shown in the figure) or sewage channel (not shown in the figure) on site through its water pressure controlled sewage valve, and then flows into the sewage sedimentation tank (not shown in the figure) for recycling.

[0051] As an example, the dust removal system may work as follows:

[0052] Start the water pump to pressurize the water and pass it through the pressure water pipeline to the dust removal main pipe assembly 4, the branch pipe 8 and the nozzle assembly 2 of the dust removal manifold assembly 5 to form a water spray or fine water mist (selected according to the nature of the dust on site).

[0053] The fan 11 is started to operate, and the dirty air with dust is sucked into the dust removal manifold assembly 5 and then collected into the manifold collecting pipe 8, and enters the dust removal main pipe assembly 4. When the dirty air with dust flows through these pipes, it mixes with the water spray or fine water mist formed by the nozzle assembly 2 inside to form "mud mist", and the mud mist collides to form "mud water droplets", which drip into the sewage discharge trough under the action of gravity, and then enter the sewage receiving pan 22, and flow into the sewage pipe (not shown) or sewage channel (not shown) preset on site through the sewage pipeline and its water pressure control sewage valve, and then flow into the sewage sedimentation tank (not shown) for recycling.

[0054] After passing through the fan 11, the dirty air (dust content has been greatly reduced) containing a small amount of mud mist enters the filter-free dust removal device 12 for further purification, and the purified air flows out through the outlet 13 of the filter-free dust removal device 12. A pipeline can also be connected to the outlet to transport the purified air to a desired place.

[0055] In the present invention, the materials, sizes, models, etc. of all pipes do not constitute limitations, and soft pipes, hard pipes, or semi-hard pipes all fall within the scope of protection of this patent.

[0056] The above is only a preferred 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. A filter-free pipeline dust removal system, characterized in that: It comprises at least one dust removal pipe assembly; each of the dust removal pipe assemblies comprises a pipe body, a nozzle assembly is arranged in the pipe body, the nozzle assembly is connected to a water supply system, the pipe body has a sewage discharge slot, and is connected to a sewage discharge system through the sewage discharge slot.

2. The filter-free pipeline dust removal system according to claim 1 is characterized in that: The water supply system includes an external pressure water pipe arranged on the outside of the pipe body, and the external pressure water pipe is connected to an internal pressure water pipe arranged on the inside of the pipe body through a pressure water pipe branch pipe. The water outlet end of the internal pressure water pipe is connected to the water inlet end of the nozzle assembly. The external pressure water pipe is also connected to a water pump for pumping water to the water supply system.

3. The filter-free pipeline dust removal system according to claim 2 is characterized in that: It also includes a nozzle assembly bracket, which is arranged in the dust removal pipe assembly and connected to the inner wall of the tube body of the dust removal pipe assembly. The nozzle assembly is arranged on the nozzle assembly bracket.

4. The filter-free pipeline dust removal system according to claim 2, characterized in that: The sewage discharge system comprises a sewage receiving pan connected to the water outlet of the sewage discharge trough, and the bottom end of the sewage receiving pan is connected to the sewage discharge pipe through a sewage connecting pipe.

5. The filter-free pipeline dust removal system according to claim 4 is characterized in that: The water outlet end of the sewage discharge pipe is connected to a water pressure controlled sewage valve.

6. The filter-free pipeline dust removal system according to any one of claims 1 to 5, characterized in that: The dust removal system comprises a dust removal main pipe and a dust removal manifold, wherein the dust removal manifold is connected to the dust removal main pipe as a branch of the dust removal main pipe; The dust removal main pipe is composed of one or more dust removal main pipe assemblies connected end to end, and the dust removal manifold is composed of one or more dust removal manifold assemblies connected end to end; The dust removal main pipe assembly and the dust removal manifold assembly are both the dust removal pipe assembly.

7. The filter-free pipeline dust removal system according to claim 6, characterized in that: It also includes a fan, which is arranged at one or more positions of the air path formed by the dust removal main pipe and the dust removal manifold.

8. The filter-free pipeline dust removal system according to claim 6, characterized in that: The tail end of the dust removal main pipe is also connected with a filter-free dust removal device.

9. The filter-free pipeline dust removal system according to claim 1, characterized in that: The tube body is also provided with a window, and the window is provided with a window cover which can be opened and closed or removed.

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