KR100247945B1 - Vertical type test dust feeding and disperser for dust collector and filter performance test - Google Patents

Abstract

The present invention is a dust supply and dispersion device for testing dust collector, industrial filter cloth, and performance test equipment for various air filters, and has been created to perfectly complement the problems of foreign products.

When testing the performance of various high-performance and neutral-performance filters or dust collectors, the amount of test dust used for performance testing can be precisely adjusted in a wide range, and it is possible to disperse the test dust in its original shape and to generate the test dust. The present invention relates to a test dust supply and dispersing device for use in high efficiency dust collector and filter performance test for the purpose of eliminating static electricity to prevent dust agglomeration.

The shape and structure of the storage tank for storing test dust and the screw feeder for supplying test dust, and the structure and shape of the separate supply dust induction hopper portion for smoothly inducing the discharged dust and the induction and dispersion of dust inflow It consists of the structure of the disperser and the structure to remove the static electricity generated when dispersing dust, which solves all the problems of the existing dust supply and dispersing device and can be widely used in dust collector and filter performance tester that requires precision. Feeding and dispersing device.

Description

Vertical dust supply and disperser for dust collector and filter performance test

The present invention relates to an apparatus for supplying and dispersing test dust which is essential for testing the performance of various dust collectors and industrial filter cloths and various air filters for collecting and removing dust discharged from combustion and dust generating processes. The present invention relates to a device designed and manufactured to enable accurate supply of dust quantitatively in order to accurately simulate the dust concentration required by the dust collector, and to disperse the supplied dust as it is.

Industrial filter cloth or high-performance and neutral-performance filters must first be tested for their performance before they can be used in dust collectors for the required processes.

In the performance test, it is necessary to perform pressure loss test according to the change of treatment gas flow rate and inlet dust concentration, and the characteristics such as overall dust collection efficiency, partial dust collection efficiency, and partial passage rate according to the type of dust discharged from the process required in the field. Should be.

Here, the pressure change test can measure the resistance applied to the front and rear ends of the performance test filter by using a dry pressure loss differential pressure gauge or a wet U-shaped manometer, but to test the overall dust collection efficiency and partial pass rate, Test dust must be supplied into the inlet air at a certain amount or at the dust concentration required by the test conditions, and dispersed in the shape of the test dust.

The most important point here is that the feed-injected dust into the air entering the test apparatus should be dispersed into a single dust particle in its original shape.

In addition, in order to maintain the exact dust concentration required for the test, the amount of test dust supplied must be precisely controlled.

Supply into the inlet air Dispersed dust particles are not dispersed as a single particle but are dispersed and dispersed in a cohesive or agglomerated state, which results in a lack of reliability in performance evaluation by a test of filter performance.

In order to test the performance of the filter, the method of supplying and dispersing test dust is a method using an ejector, a method using a fluidized bed principle, and a method using a rotating table.

In the ejector method, the test dust is fed into the ejector by adjusting the supply amount with a screw feeder or a rotary feeder, and the ejector is blown with compressed air and dispersed.

The method using the fluidized bed principle is a method of supplying test dust into the fluidized bed by a chain feeder and dispersing the test dust introduced as the fluid in the fluidized bed is fluidized by compressed air.

Beads are considerably denser than test dust and are of high strength and are made of particulate matter.

Fluidized bed methods are already developed and patented in the United States.

Disadvantage of test dust supply disperser by ejector is that it is difficult to disperse single particles of test dust and static electricity is generated by friction of pipe when blowing dust particles in ejector, so that dust particles and particles coagulate with each other and disperse single particles This is a difficult drawback.

The method using the fluidized bed principle is possible to disperse single particles of test dust, but it is impossible to maintain the original shape due to the wear of particles according to the type of test dust due to collision with the layer material, and the range of dust supply is narrow. It is difficult to test the range and it is impossible to maintain the shape and size of dust particles actually required.

The rotary table method has a disadvantage in that it is difficult to quantitatively supply the test dust because the supply amount of the test dust filled in the table groove is not constantly filled according to the table rotation speed.

The present invention was devised to solve the above-mentioned problems, and the present invention can precisely control the supply amount of dust used for a performance test in a wide range when testing the performance of various industrial filter cloths and high performance neutral filter or dust collector. It is possible to disperse dust particles in the process of supplying dust, to remove static electricity generated during dispersion, and to distribute it as it is, and to supply and disperse test dust for use in high efficiency dust collector and filter performance test for multipurpose use. The purpose is to provide.

According to the configuration of the present invention for achieving the above object is a storage tank for storing and supplying the test dust and the dust to induce the discharge dust guide hopper portion to guide the test dust discharged to a certain amount of supply using dust supplied by compressed air Disperser part, electrostatic elimination part generated by collision and friction of particles Pressure and flow rate control part for purifying compressed air for dust dispersion Part formed with motor speed control part to control test dust supply amount. Although the horizontal type or the upwardly rising type is adopted, the present invention adopts the vertical downward feeding and dispersing method so that the discharge of the test dust can be precisely controlled and can be exchanged with a screw feeder having a different diameter. Features a wide range of uses .

1 is a top portion of the apparatus that serves as a quantitative supply and polydispersity of dust in the present invention

Assembly drawing showing the structure and structure of each driving part

2 is the determination of dust at the top of the device as the bottom of the device of the present invention.

Represents a control box that regulates the drive for supply and smooth distribution

Assembly drawing

Figure 3 schematically shows the shape of the dust supply and dispersing device assembled with the two parts

Assembly drawing shown

* Explanation of symbols for main parts of the drawings

(1): Drive motor (2): Screw bite

(3): Dust feed screw feeder (4): Screw feeder rack

(5): Motor shaft (6): Dust storage tank

(7): Mixed dust mixing wing (8): Dust guiding hopper

(9): compressed air inlet (10): static eliminator

(11): dust spreader 12: pressure gauge

(13): drive motor speed meta (14): drive motor speed regulator

(15): Drive motor speed control device power cut and supply switch

(16): compressed air flow meter (17): compressed air inlet

(18): power supply section (19): valve for supplying compressed air

(20): Main power switch (21): Compressed air pressure regulator

The components, roles and functions of the device with reference to FIGS. 1 and 2 will be described in detail with reference to FIGS. 1 and 2.

The test dust storage and supply part (A) and the supply dust transfer hopper part (3) are separated and combined, and the dust spreader part (C) and the static elimination part (D) are combined thereon, and the whole is configured vertically. The storage and supply portion (A) is a screw feeder (3) shaft-mounted mixing blade (7) by connecting a drive motor (1) bolted to the support and a screw biter (2) that can be replaced according to the screw size (3) The screw feeder (3) is installed in the dust storage tank (6) and the glass funnel (6a) is installed at the bottom of the dust storage tank (6), and the test dust storage and supply portion (A) After installing the dust-inducing hopper (8) made of conical glass with a large inclination angle on the inner surface, and vertically connected to the dust spreader (11) having a compressed air inlet (9) installed below it, There (10) is installed.

In the drawings, reference numeral 13 denotes a drive motor speed meta, 14 a drive motor speed regulator, 15 a drive motor speed controller power cut and supply switch, 16 a compressed air flow meter, ( 17 is the compressed air inlet, 18 is the power supply, 19 is the compressed air supply valve, 20 is the main power switch, and 21 is the compressed air pressure regulator.

1, the test dust storage and supply portion (A), the supply dust transfer hopper portion (B) for guiding the supplied test dust to the dust dispersion inlet (B) is composed of a dust dispersion portion (C) for dispersing the introduced test dust It can be divided into 4 parts as static elimination part (D) generated by dust dispersion or moving friction.

The test dust stored in the dust storage tank 6 is discharged and supplied by the rotation of the screw feeder 3 for dust supply. At this time, the viscous dust is not discharged well depending on the type of test dust, or the bridge is used depending on the type of dust. Phenomena or rat holls may occur.

In order to prevent this phenomenon, the storage dust mixing blade 7 is installed.

As shown in FIG. 2, the rotation speed of the screw feeder 3 adjusts the number of rotations required by the driving motor rotation controller 14 to supply test dust.

The discharged dust immediately falls on the discharge dust induction hopper 8, and the inside of the hopper is made of funnel-shaped glass having a large inclination angle so that the discharged dust does not accumulate well.

The separation of the test dust storage and supply section (A) and the feed dust transfer hopper section (B) is for the purpose of accurate measurement of the dust concentration by the screw feeder (3), ease of disassembly and coupling, and for the convenience of cleaning. This is to prevent the sound pressure generated in the disperser 11 from being transmitted to the dust storage tank 6.

The dust passing through the discharge dust induction hopper (8) is introduced into the dust spreader (11) by compressed air and dispersed immediately, and the dispersed dust is neutralized through the static eliminator (10) and introduced into the test apparatus.

Therefore, the present invention is more efficient and disperse in supplying and controlling a wider range of test dusts than the conventional dust supply method and the dust supply and dispersing apparatus by the method of the fluidized bed and the rotating table. It has excellent dispersing effect without any abrasion and agglomeration of dust, and it is possible to use continuously.

In addition, when other types of test dust are used during the test, test dust can be easily replaced, and the structure of the device is simple to assemble and clean.

Until recently, the test dust supply and dispersing device for performing the performance test of the dust collector and various filters has not been appropriate, but if the present invention is commercialized, mass production can be spread.

The present invention is expected to be used for performance testing and research in a wide range of dust collectors and filters in various fields related to the installation and production of dust collectors of manufacturers related to filters and to universities and research institutes that conduct research related to dust collection technology. .

Claims (3)

The test dust storage and supply part (A) and the supply dust transfer hopper part (3) are separated and combined, and the dust disperser part (C) and the static elimination part (D) are combined below, and the whole is configured vertically. Dust collecting and dispersing device for vertical test. Connect the drive motor (1) installed with bolts to the support and the screw biter (2) which can be replaced according to the screw size, so that the screw feeder (3) shaft-mounted with the mixing blade (7) is bitten and the screw feeder (3) Is installed in the dust storage tank (6) is installed on the bottom of the dust storage tank (6a) of the glass funnel, and the test dust storage and supply part (A), characterized in that for the performance test of the dust collector and filter Vertical Dust Feed and Disperser. Dust disperser having a discharge dust induction hopper (8) made of conical glass having a large inclination angle on its inner surface facing the test dust storage and supply portion (A), and having a compressed air inlet (9) installed thereunder. Vertical dust supply and dispersion device for dust collector and filter performance test, characterized in that the electrostatic eliminator (10) is installed in a right angle direction after the installation (11) connected vertically.