JPS5912729A - Dust removing apparatus - Google Patents

Abstract

PURPOSE:To provide an inexpensive dust removing apparatus capable of treating a high temp. combustion exhaust gas in high capacity, by a method wherein a rotatable first cylinder is surrounded by an air permeable second cylinder having a screw plate spirally attached to the outer periphery thereof and a heat resistant granular material is filled between both cylinders. CONSTITUTION:A heat resistant granular material 60 such as sand is thrown in a conveyor pipe 35 from an intake port 36 and sent into a supply chamber 15 through each chute 37. A first cylinder 24 is revolved by a motor 31 and the granular material 60 is moved to the lower end part from the upper end part through a screw plate 25 to be discharged to a discharge chamber 18. Said granular material is further discharged from the outtake port 58 of a conveying-out pipe 53. A combustion exhaust gas enters a lower dust removing chamber 17 from an inflow port 20 and passed through a granular material 60 from the outside lower part of a second cylinder 21 to be introduced into the inside lower part of the first cylinder 24 and further passed to the outside upper part of the second cylinder 21 from the inside upper part of the first cylinder 24 to be discharged to an upper dust removing chamber 16 and guided to an exhaust fan through an outflow port 19. During this time, the granular material 60 is always exchanged.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a dust removal device for removing dust contained in combustion exhaust gas generated from a combustion device such as a boiler or an incinerator.

[Technical background of the invention and its problems]

There are various types of devices that remove dust contained in gas, but electrostatic precipitators are expensive, and bag filters are expensive and durable when the temperature of the dust-containing gas is high. In addition, scrubbers are not economical because they require water treatment equipment, and
Dust collectors that use inertia, gravity, centrifugal force, etc. have limited capacity, and all of them have problems in treating combustion exhaust gas generated from boilers, incinerators, etc.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned points, and aims to provide a dust removal device that can treat high temperature combustion exhaust gas and has high performance at a low cost. It is designed so that dust removal work can be carried out continuously by replacing it4).

[Summary of the invention]

The dust removal device of the present invention has a rotatable first cylindrical body having air permeability in the main body having an inlet and an outlet for combustion exhaust gas.
A screw plate is spirally attached to the outer part of the cylindrical body 1, this screw plate is surrounded by the cylindrical body of the fang 2 which has air permeability, and the cylindrical body of the fang 2 and the cylindrical body of the above spear 1 are connected. The heat-resistant granules are supplied to one end between the cylindrical bodies, and the granules are supplied to the other end between the cylindrical bodies by rotating the screw plate 1 through the cylindrical body 1. It is characterized in that the σ) combustion gas is passed through the moving particulate matter through the cylinders to remove dust from the inflow port, and is caused to flow out from the outflow port. The filter material only needs to be a heat-resistant granular material, so sand or the like can be used, making it extremely inexpensive, disposable, and easy to clean for reuse. The structure of the skin itself is simple, does not require complicated mechanisms or complicated controls, has no particular restrictions on usage conditions, is extremely inexpensive, has high durability, and has a filter stack. Another advantage is that the heat-resistant granules can be replaced gradually even during dust removal work by rotating the cylinder of fang 1, so that dust removal work is not interrupted.

[Embodiments of the invention]

Next, the dust removal device of the present invention will be specifically explained based on the embodiment shown on the first page.

Figure 1 shows the dust removal device of the present invention in a garbage incineration facility VC.
This shows an example of C-purchase, where fi+ is a steering platform, (2) is a dust shelter, (3) is a crane, (4) is a chute, (5) is an incinerator, and (6) is a combustion exhaust gas cooling tower. , (7) is the combustion slag cooling water tank, (8) is the dust removal device, (9) is the exhaust fan, a [ is the chimney, and the garbage and other incinerated materials carried by the truck are transported to the steering platform (1). The trap is such that the dust is thrown into the trench (2) and then thrown into the incinerator (5) via the reute (4) by the grab bucket of the crane (3) and incinerated, and the combustion residue is cooled. The flue gas is collected in a water tank (7), and is discharged into the atmosphere from the chimney a through the cooling tower (6) and dust remover (8) by an exhaust fan (9). It has become.

Figures 2 to 4 show the dust remover F, (8), (11) is the main body, and the inside of this main body 01) is divided into 4NK sections by partition plates 0261 a4), and the upper From particulate matter supply chamber 05), upper dust removal s, o61,
The surface of the lower dust removal chamber and the particulate matter discharge rate αυ are formed, and the rear part of the upper dust removal chamber Oe (in Figure 2 (upper part) VC is connected to the exhaust fan (9) shown in Figure 11). A cooling tower (6) shown in Figure 1 is formed in the front part of the lower dust removal chamber r+'7).
K is connected to the combustion exhaust gas inlet (a), and each of the above partition plates 02)fl:'(104
A plurality of, for example, seven cylinders Cυ of the spear 2 having air permeability are fixed to the supply chamber (15) and the discharge chamber 0υ (each cylinder (21) of the spear 2). Inside, there are tubes ('* (241) is arranged, and a screw plate (29) is spirally attached to the outer periphery of each cylinder (24) of this].1.

In addition, each of the above-mentioned cylinders (21) C>4) is made up of a large number of round rods (27) arranged in parallel to form a ring, as shown in Figures 1-5. Each round bar f261 (2
The air permeability is maintained by a small gap between 7+, and the round rod (goods) of the inner fang 10 cylinder (24) has a smaller diameter than the inside of the nine rod of the outer fang 20 cylinder C+1. are using.

A pair of sprocket wheels (281) are attached to the upper end of each cylindrical body (24+ shafts (21) of the fangs 1, and sprocket wheels 128 of each adjacent shaft). Nisochi 1.Zorendandanchen (2L
11 is repeated sequentially, and -fllll martyrdom (j・2
The sprocket wheel (□'!
8) Close to K, sprocket wheel for irradiation J
1lT) ['E -9cal+ is the reducer (via 33.

With (・2), the sprocket wheel C ()) and upper %'', (1111m+, j sprocket wheel (c) is wound with the chain c33 for driving 1), thereby 1. , motor C1)
Then, each cylinder C (a) of the spear 1 rotates in the same direction.

In addition, particulate matter is brought into the upper rear part of the main body 01) ￥f05
1 is arranged, and a granular material intake Oθ is provided at the upper end of one end of the three inlet pipes. -F of 0 slags
A plurality of reutes 0''O are connected to each of the above-mentioned shaft support mechanisms (2
21 and are connected so that each chute (
37) is opened and closed by the air cylinder C118).
So, Kamimachi: Inside the three carry-in pipes c, there are 1 knee plate (4)
A shaft (41) on which the voice is spirally mounted is supported, and this shaft 1
411 is the motor (
A pair of sprocket wheels (41 (44) and a chain 149 are connected to 42, and thereby,
When the motor (42) is driven, the shaft (41) rotates.

In addition, a screw plate I! is attached to the inner bottom of the discharge chamber marked θ! 5
11 is spirally attached to the shaft color 2, and this shaft 6z
is a particulate discharge pipe 63 protruding from one end of the discharge chamber 0 mallet.
) is connected to the motor (54) via a pair of sprocket wheels (ei51) and an uncoupled chain (6η), thereby driving the motor (54).
The side car is designed to rotate.

A granular material outlet 6& is formed at the bottom of the above-mentioned discharge pipe I5, and a 10F screw plate (c) is formed at the bottom of the lower partition plate 0 (a) in the main body 01). Of the cylindrical body with fangs 3 surrounding the lower end! J) is installed.

Next, this removal! l! ! The operation of the device (8) will be explained.

Heat-resistant granules (60) such as sand are introduced into the carry-in pipe 6 from the inlet am, and the motor i42K has a width It411.
Rotate the granules (6) to the force side shown by the arrow (4) in Fig. 4, and pass the granules (6
As shown in the figure, send air cylinder Q to the right).
A<Therefore, the damper r3!1 is opened and the granules 60) are fed into the supply chamber 0■ via each chute c'+7).

At this time, when a predetermined number of granular material shafts are filled under each chute ('+7 damper eel), it is configured so that it is closed by the air cylinder 0, λ, and the granular material 11301 is uniformly distributed in the supply chamber aQ. so that it is sent to
And the damper OI of each chute C37) is smooth.

If the motor (421) is closed, the motor (421) is stopped and the shaft (4'l) is closed.
The configuration is such that the first time of J] is stopped.

Then, each first cylindrical body Q4 is rotated by the motor Sυ in the direction of the arrow CB in Fig.
0 to each cylinder body (24+) of fang 1 through the screw plate (c).
The shiso moves slowly in a dense manner from the upper end to the lower end between the cylinders (2I) of the fang 2 and discharges it into the discharge chamber (II), and the motor 54iK moves the shaft ■ in the direction of the arrow in Fig. 14 (0 direction). The granules in the discharge chamber 08) are sent to one side (Fig. 2 and Fig. A-3 (to the left)) through the screw plate 61), and are sent to the outlet of the ejection pipe mallet. discharge from the department.

Then, in this state, the cooling tower (
The combustion exhaust gas from 6) enters the inlet (from 21 to the lower dust removal chamber 07) K by the suction action of the exhaust fan (9), and is
・Then, from the outside (11+1 lower part) of each cylinder body (21) of 1 and 2, it passes between the particulate matter 1 and enters the inside lower part of each cylinder body I2 (a) of fang 1, and then each of the spear 1 It passes between the granules 101 from the inner upper part of the cylinder (24), exits to the outer upper part of each cylinder (21) of the fang 2, that is, the upper dust removal chamber (16), and exits from the outlet (
[1] to the exhaust fan (9), and the dust is removed when passing between the granules (io) twice.

When σ), the granular material; 0) is equal to each cylinder (?) of 'At1.
Due to the rotation in 4), it slowly moves downward? #Ij, so it will be replaced constantly, and in the meantime, the rotation of each cylindrical body in 1 and 1) will not necessarily be the same. It does not have to be continuous and can be done intermittently.

This dust removal device (8) can use heat-resistant granular materials such as sand as the filter material, so the filter material is extremely inexpensive. Dust adheres to 1.
f', C, it is easy to clean and reuse, and the structure of the device itself is simple, requiring no complicated mechanism or complicated control, and there are no particular restrictions on usage conditions. It is extremely inexpensive and highly durable.

If the granular material (0) is heat resistant, other materials such as silica sand can be used instead of sand, and the size of the granular material (2) is not limited to sand. It is possible to deal with various types of dust by changing (τ), for example, if you change the particulate matter side to small and fine (・), it is effective for removing liquid dust, and if you change the particulate matter (6) to large and rough one, This is effective in removing solid dust, and a mixture of large and small particles can also be used.

As described above, this dust removal device (8) has a simple structure, so it is extremely easy to increase the size and improve the processing capacity, and it is very easy to increase the size and processing capacity by increasing the number of cylinders (21) and (24). In addition, since the particulate matter FA is filled between the cylinders f2+1241, the passage area of the combustion exhaust gas is increased, and there is no concern in terms of throughput.

〔Effect of the invention〕

As mentioned above, Raikou FIJJ provides an inexpensive dust removal device that can process high-temperature combustion exhaust gas, has extremely high processing power, has a simple structure, and has excellent durability. Moreover, the filter material or particulates can be replaced continuously or intermittently at any time.
Combustion exhaust gas can be treated continuously, and since the filter material is simply heat-resistant granules, it is inexpensive and easy to reuse.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, and Figure 1 is an explanatory diagram of the incineration equipment, and Figure 2 is an explanatory diagram of the incineration equipment. A plan view of the device, Figure 3 is a partially sectional front view, Figure 4 is a side sectional view, and Figure 5 is a sectional view of the main part. (8)...Dust removal device, 01)...Main body, α1...Outlet, ■...Inlet, (2υ-・Fang 2 cylinder, Q(a)...
Layer 1 cylindrical body, (to)--screw plate, and granular material.

Claims (1)

[Claims] (1) A cylindrical body of a spear 1 having air permeability is rotatably straddled in the main body having an inlet and an outlet for combustion exhaust gas, and this spear 1
A screw plate is spirally attached to the outer periphery of the cylindrical body, and this screw plate is surrounded by a 1'20 cylinder having air permeability.
Heat-resistant granules are supplied to one open end of the cylindrical body of the spear 2 and the cylindrical body of the fang 1, and the screw plate is rotated through the cylindrical body of the spear 1 to transfer the granular substances to each of the above. The combustion exhaust gas is moved to the other end between the cylindrical bodies and discharged, and the combustion exhaust gas from the inlet is passed through the moving particulate matter through each of the cylindrical bodies to remove dust, and is caused to flow out from the outlet. ni1-
A dust removal device characterized by: