A dry fog dust suppression device for preventing water mist from escaping

Abstract

The present invention discloses a dry fog dust suppression device for preventing water mist from escaping, which includes a dry fog generating device. The dry fog generating device includes a high-pressure gas generating device and a water supply device. The high-pressure gas generating device and the water supply device are connected to a spraying device. The high-pressure gas generating device, the water supply device and the spraying device are connected to a control host. An anti-fogging device is arranged above the spraying device, and the anti-fogging device is connected to the control host. The present invention has high dust removal efficiency, small water consumption, small floor area of the equipment, convenient operation, can prevent water mist from escaping, does not affect the line of sight of operators, and ensures the normal progress of operation production and production safety.

Description

Technical Field

[0001] The present invention relates to a dry fog dust suppression technology, in particular to a dry fog dust suppression device for preventing water mist from escaping. Background Art

[0002] Dry fog dust suppression is a commonly used dust removal technology at present. It atomizes water and high-pressure gas through a dry fog box assembly or a universal joint assembly and sprays it through a dry fog nozzle to form micron-level ultra-fine water mist to capture dust. The diameter of the water mist particles can reach 1-10 μm. For the dust generated in industrial production, especially the dust with a diameter of less than 5 μm, when the water mist collides and contacts with the dust particles, they will stick together to form aggregates of dust and water mist. And as the coalesced aggregates become larger and heavier, the aggregates settle under the action of their own gravity, forming a "filtration" effect of the water mist on the dust, so as to achieve the purpose of dust suppression, effectively solving the problem of dust treatment in a locally enclosed or semi-enclosed state, such as dust removal in loading and unloading areas such as feed hoppers and feeders. However, when using dry fog for dust removal operations, due to the small particle size and light weight of the micron-level ultra-fine water mist, some water mist will escape from the dust removal operation area and float in the air. If the dust removal operation is carried out in a closed or semi-closed indoor area such as a workshop, these escaped and floating water mists will accumulate more and more and gradually fill the room, interfering with the line of sight of the operators, hindering the normal progress of the operation production, causing inconvenience in the operation and affecting safety production. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to provide a dry fog dust suppression device for preventing water mist from escaping, which will not affect the line of sight of the operators and ensure the normal progress of the operation production.

[0004] To solve the above technical problem, the technical solution of the present invention is: a dry fog dust suppression device for preventing water mist from escaping, including a dry fog generating device, the dry fog generating device includes a high-pressure gas generating device and a water supply device, the high-pressure gas generating device and the water supply device are connected to a spraying device, the high-pressure gas generating device, the water supply device and the spraying device are connected to a control host, an anti-escaping fog device is arranged on the upper side of the spraying device, and the anti-escaping fog device is connected to the control host.

[0005] As a preferred technical solution, the anti-escaping fog device includes a heat exchanger and an anti-escaping fog body. The anti-escaping fog body is cylindrical and has a blowing port and a suction port oppositely arranged on the cylindrical wall. The heat exchanger is provided with a cold air port and a hot air port. The suction port is connected to the cold air port of the heat exchanger through an air outlet pipe, the blowing port is connected to the hot air port of the heat exchanger through an air inlet pipe, the air inlet pipe is connected to a fan, and the control host is connected to control the heat exchanger.

[0006] As a preferred technical solution, a dust filter is arranged on the air outlet pipe.

[0007] As a preferred technical solution, the anti-fogging device includes an anti-fogging body, a blowing port is arranged on the anti-fogging body, and the blowing port is connected to a blower through an air inlet pipe.

[0008] As a preferred technical solution, the spraying device includes a water-gas distributor, the high-pressure gas generating device and the water supply device are connected to the water-gas distributor, the water-gas distributor is connected to a universal joint assembly, the water-gas distributor and the universal joint assembly are connected to the control host, and the anti-fogging device is arranged on the upper side of the universal joint assembly.

[0009] As a preferred technical solution, the spraying device includes a dry fog controller, the high-pressure gas generating device and the water supply device are connected to the dry fog controller, the dry fog controller is connected to a dry fog box assembly, the dry fog controller and the dry fog box assembly are connected to the control host, and the anti-fogging device is arranged on the upper side of the dry fog box assembly.

[0010] As a preferred technical solution, the dry fog generating device further includes a dust concentration detection sensor, and the dust concentration detection sensor is connected to the control host.

[0011] As a preferred technical solution, the high-pressure gas generating device includes a screw air compressor, the screw air compressor is connected to an air storage tank, the air storage tank is connected to the spraying device, and the screw air compressor is connected to the control host.

[0012] A dry fog dust suppression device for preventing water mist from escaping, which adopts the above technical solution, includes a dry fog generating device, the dry fog generating device includes a high-pressure gas generating device and a water supply device, the high-pressure gas generating device and the water supply device are connected to a spraying device, the high-pressure gas generating device, the water supply device and the spraying device are connected to a control host, an anti-fogging device is arranged on the upper side of the spraying device, and the anti-fogging device is connected to the control host. When the dry fog dust suppression device of the present invention works, the anti-fogging device arranged on the upper side of the spraying device of the dry fog generating device prevents the water mist sprayed by the spraying device from escaping, thereby avoiding the phenomenon that the escaped and scattered water mist accumulates and affects the sight of operators, and ensuring the normal progress of operation production and production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following drawings are only intended to illustrate and explain the present invention schematically, and do not limit the scope of the present invention. Among them:

[0014] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0015] Figure 2 is a schematic diagram of the spraying device and the anti-fogging device of an embodiment of the present invention;

[0016] Figure 3 is the schematic diagram of the dry mist generating device of the present invention;

[0017] Figure 4 is the structural schematic diagram of another embodiment of the present invention.

[0018] In the figure: 1 - anti - fog escape body; 2 - heat exchanger; 3 - air blowing port; 4 - air suction port; 5 - air inlet pipe; 6 - air outlet pipe; 7 - fan; 8 - hot air port; 9 - cold air port; 10 - box body; 11 - feeder; 12 - dust filter; 13 - dry mist nozzle; 14 - crusher feed inlet; 15 - bucket. Specific embodiments

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. In the following detailed description, only some exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those of ordinary skill in the art can recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the drawings and the description are illustrative in nature and not used to limit the protection scope of the claims.

[0020] Such as Figure 1 and Figure 2As shown, a dry fog dust suppression device for preventing water mist from escaping includes a dry fog generating device, the dry fog generating device includes a high-pressure gas generating device and a water supply device, the high-pressure gas generating device and the water supply device are connected to a spray device, the high-pressure gas generating device, the water supply device and the spray device are connected to a control host, an anti-escaping fog device is arranged on the upper side of the spray device, and the anti-escaping fog device is connected to the control host. The anti-escaping fog device can include a heat exchanger 2 and an anti-escaping fog body 1, the anti-escaping fog body 1 is cylindrical and has a blowing port 3 and an air suction port 4 arranged on the cylinder wall, the heat exchanger 2 is provided with a cold air port 9 and a hot air port 8, the air suction port 4 is connected to the cold air port 9 of the heat exchanger 2 through an air outlet pipe 6, the blowing port 3 is connected to the hot air port 8 of the heat exchanger 2 through an air inlet pipe 5, the air inlet pipe 5 is connected to a fan 7, and the control host is connected to control the heat exchanger 2. The heat exchanger 2 can adopt a structure in which an electric heater and a fan 7 cooperate, or a structure in which a liquid heat exchanger 2 and a fan 7 cooperate. These are all common knowledge and will not be described here. The fan 7 works by sucking the water mist that escapes into the cylindrical anti-escape mist body 1 through the air suction port 4 and entering the heat exchanger 2 through the air outlet 6 and the cold air outlet 9 for heating and elimination. After that, the air flow is blown into the cylindrical anti-escape mist body 1 at high speed through the hot air outlet 8, the fan 7, the air inlet 5 and the air outlet 3 to form a high-speed air flow, and the water mist that escapes into the cylindrical anti-escape mist body 1 is blown to the air suction port 4, so that the air suction port 4 can absorb the water mist that escapes into the anti-escape mist body 1. At the same time, because the particle size of the water mist is extremely small, the hot air flow blown into the cylindrical anti-escape mist body 1 can heat and eliminate part of the escaped water mist. The air outlet 6 is provided with a dust filter 12 for filtering out dust and part of the water in the air flow. Through the heat exchange of the heat exchanger 2, energy can be saved and the moisture content of the material after transmission or crushing can be reduced. The anti-misting device can also include an anti-misting body 1, on which an air blowing port 3 is provided, and the air blowing port 3 is connected to a fan 7 through an air inlet pipe 5, and the air outlet direction of the air blowing port 3 can be tilted downward, so that the high-speed airflow blown out by the air blowing port 3 forms a high-pressure airflow layer on the upper side of the spray device, and the escaping and floating water mist will be eliminated by the airflow or blown back to the injection area of the spray device when encountering the high-pressure airflow layer, and an electric heater can be provided on the air inlet pipe 5, so that the airflow transported by the air inlet pipe 5 can be heated by the electric heater provided on the air inlet pipe 5, so that the high-speed airflow blown out by the air blowing port 3 is a high-pressure hot airflow, which can improve the elimination efficiency of the escaping and floating water mist.

[0021] like Figure 3As shown, the spray device includes a water-gas distributor, and the high-pressure gas generating device and the water supply device are connected to the water-gas distributor. The water-gas distributor is connected with a universal joint assembly, and the water-gas distributor and the universal joint assembly are connected to the control host. The anti-fogging device is arranged on the upper side of the universal joint assembly, specifically on the upper side of the dry fog nozzle 13 of the universal joint assembly. The spray device can also include a dry fog controller. The high-pressure gas generating device and the water supply device are connected to the dry fog controller. The dry fog controller is connected with a dry fog box assembly. The dry fog controller and the dry fog box assembly are connected to the control host. The anti-fogging device is arranged on the upper side of the dry fog box assembly, specifically on the upper side of the dry fog nozzle 13 of the dry fog box assembly. During use, the dry fog nozzle 13 of the universal joint assembly or the dry fog box assembly can be installed in the box body 10. The water supply device can use a water supply pump controlled by the control host for water supply. The high-pressure gas generating device includes a screw air compressor. The screw air compressor is connected with an air storage tank. The air storage tank is connected to the water-gas distributor or the dry fog controller of the spray device. The screw air compressor is connected to the control host. The dry fog generating device further includes a dust concentration detection sensor. The dust concentration detection sensor is connected to the control host. The concentration of dust in the dust area is detected by the dust concentration detection sensor. The operation of the screw air compressor, the water-gas distributor and the universal joint assembly or the dry fog controller and the dry fog box assembly, etc. is controlled by the control host to realize the intelligent control of dry fog dust suppression.

[0022] The present invention can be installed at the crusher feed inlet 14, such as Figure 1 and Figure 2 As shown in [ID=X] is a schematic diagram of an embodiment of the present invention for dust removal when the feeder 11 feeds materials to the crusher feed inlet 14. The dry fog nozzle 13 of the universal joint assembly or the dry fog box assembly is installed through the box body 10. The box body 10 and the cylindrical anti-fogging body 1 surround the outside of the discharge part of the feeder 11. During the feeding process, the dust generated is removed by the water mist sprayed by the dry fog nozzle 13 of the universal joint assembly or the dry fog box assembly on the box body 10, and the escaped water mist is taken away and removed by the high-speed air flow between the air blowing port 3 and the air suction port 4 on the anti-fogging body 1, preventing the escaped water mist in the dry fog dust suppression from interfering with the line of sight of the operating personnel.

[0023] Such as Figure 4As shown in the figure, the present invention can also be installed at the bucket 15 of a forklift. The dry mist nozzle 13 of the universal joint assembly or the dry mist box assembly is arranged on the upper side of the rear wall of the bucket 15. It can be directly installed on the rear wall of the bucket 15 or installed on the bucket arm through a bracket. The dry mist nozzle 13 points into the bucket 15. The anti-mist escape body 1 is installed on the upper side of the dry mist nozzle 13. There is a blowing port 3 on the anti-mist escape body 1. The air inlet pipe 5, the fan 7, the screw air compressor, the water supply device, the water-air distributor, the universal joint assembly or the dry mist controller and the dry mist box assembly, etc. can be integrated and arranged on the forklift, and each pipeline is arranged on the bucket arm. And an electric heater can be arranged on the air inlet pipe 5. The dust generated at the working bucket of the forklift is removed by the water mist sprayed by the dry mist nozzle 13, and the escaped water mist is eliminated or blown back to the spraying area of the dry mist nozzle 13 by the high-speed air flow blown out from the blowing port 3 on the anti-mist escape body 1, preventing the escaped water mist from interfering with the line of sight of the operator during the dry mist dust suppression operation.

[0024] The screw air compressor provides a standard air source, enables full-automatic operation and query of operation status parameters through the control host, and can realize the conversion between the manual and automatic operation states of the air compressor. The connection of water, air, and electricity with the universal joint assembly or the dry mist box assembly is realized by controlling the water-air distributor or the dry mist controller, and the separate spraying of each universal joint assembly or dry mist box assembly is realized through the control host according to the situation at the operation site; the universal joint assembly or the dry mist box assembly converts the received air and water into water mist with a particle diameter of 1 - 10 μm and sprays it towards the dust suppression point. When the water mist contacts and collides with the dust particles, the dust particles adhere and agglomerate with each other and become larger, and settle under their own gravity, thereby achieving the effect of dust suppression. The control host can adopt a PLC control system, integrating components such as a programmable controller, a protection circuit, and a relay, connecting the spraying device with the on-site operation equipment to achieve remote automatic control. The control host of the present invention can provide two operation modes: automatic and manual. In the automatic operation mode, it can automatically receive a remote trigger signal to control the start or stop of the spraying device. In the manual mode, the operator can control the operation button to start or stop the spraying device; the spraying cycle and pipeline purging time, etc. can also be modified through the control system.

[0025] The present invention can be used alone in dust-raising occasions and can be widely applied to various industries with strict dust requirements, such as coal yards, cement, thermal power generation, mining, ports, steel, chemical industry, textile, etc., such as dumper houses, screening towers, transfer towers, crusher workshops, loading buildings, ship loaders and unloaders, textile workshops, etc. The present invention realizes the prevention and control of dust in a semi-closed environment, has a high dust removal efficiency, controls dust at the source of dust, that is, the dust generation point. For inhalable dust below 10 μm, the treatment efficiency is as high as over 96%. It has a small water consumption, no secondary pollution, a small floor area of the equipment, is easy to operate, is fully automatic control, has a high degree of automation, a long service life, greatly reduces the operation and maintenance costs of the dust removal equipment, reduces the probability of dust explosion, reduces the investment in fire-fighting equipment, and the temperature in the workshop remains basically unchanged during winter use; in particular, it prevents the escape of water mist, avoids the phenomenon that the escaped and scattered water mist accumulates and affects the line of sight of operators, and ensures the normal progress of operation production and production safety.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A dry fog dust suppression device for preventing water mist from escaping, including a dry fog generating device, characterized in that: The dry mist generating device includes a high-pressure gas generating device and a water supply device. The high-pressure gas generating device and the water supply device are connected to a spraying device. The high-pressure gas generating device, the water supply device, and the spraying device are connected to a control host. An anti-fogging device for blocking and eliminating the escaping water mist and preventing the water mist from escaping is arranged on the upper side of the spraying device. The anti-fogging device is connected to the control host; the anti-fogging device includes a heat exchanger and an anti-fogging body. The anti-fogging body is cylindrical, and a blowing port and a suction port are oppositely arranged on the cylinder wall. The heat exchanger is provided with a cold air port and a hot air port. The suction port is connected to the cold air port of the heat exchanger through an air outlet pipe. The blowing port is connected to the hot air port of the heat exchanger through an air inlet pipe. The air inlet pipe is connected with a fan. The control host is connected to control the heat exchanger and the fan; The dry mist generating device further includes a dust concentration detection sensor, and the dust concentration detection sensor is connected to the control host.

2. The dry fog dust suppression device for preventing water mist from escaping according to claim 1, wherein: A dust filter is arranged on the air outlet pipe.

3. The dry fog dust suppression device for preventing water mist from escaping according to claim 1, characterized in that: The spraying device includes a water-gas distributor. The high-pressure gas generating device and the water supply device are connected to the water-gas distributor. The water-gas distributor is connected with a universal joint assembly. The water-gas distributor and the universal joint assembly are connected to the control host. The anti-fogging device is arranged on the upper side of the universal joint assembly.

4. The dry fog dust suppression device for preventing water mist from escaping according to claim 1, characterized in that: The spraying device includes a dry mist controller. The high-pressure gas generating device and the water supply device are connected to the dry mist controller. The dry mist controller is connected with a dry mist box assembly. The dry mist controller and the dry mist box assembly are connected to the control host. The anti-fogging device is arranged on the upper side of the dry mist box assembly.

5. A dry fog dust suppression device for preventing water mist from escaping, as described in any one of claims 1-4, characterized in that: The high-pressure gas generating device includes a screw air compressor. The screw air compressor is connected with an air storage tank. The air storage tank is connected to the spraying device. The screw air compressor is connected to the control host.

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