JPS5912730A - Dust removing apparatus - Google Patents

Abstract

PURPOSE:To provide an inexpensive dust removing apparatus for treating a high temp. combustion exhaust gas in high capacity, constituted from such a mechanism that a heat resistant granular material is used as a filter material and the exchange of a new filter unit is enabled only by pushing the same from the opening part of a main body. CONSTITUTION:A combustion exhaust gas from the cooling tower of an incinerating installation enters one end part of the upper part gas passing cover 42 of a main unit 41 from an inflow port 55 by the sucking action of an exhaust fan and subsequently enters three filter units 31 provided to one end part thereof from the surfaces of the granular materials 34 therein and each cylinders 37 to be discharged into the lower gas passing cover 43 of the main body 41 from each cylinders 36. In addition, the gas is passed through three filter units 31 provided to the other end part thereof and supplied with moisture from a shower 58 inversely from the lower part thereof to be issued from an outflow port 56. When the filter units 31 are replaced, a new filter unit is pushed into the main body 41 from the other end opening part 51 thereof by a pusher 18 to extrude the used filter unit.

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 devices for removing dust contained in gas, but electrostatic precipitators are expensive, and bag filters are expensive and have poor durability 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 utilize inertia, gravity, centrifugal force, etc. have limited capacity, and all of these devices have problems in treating combustion exhaust gas generated from boilers, incinerators, and the like.

[Purpose of the invention]

The present invention was made in view of the above-mentioned points, and an object of the present invention is to provide an inexpensive dust removal device that can process high-temperature combustion exhaust gas and has a high capacity. This makes it easy to do.

[Summary of the invention]

The dust removal device of the present invention has openings formed at both ends of a main body having an inlet and an outlet for combustion exhaust gas, and a filter that is formed to be able to pass through both openings and that is filled with heat-resistant granules. 22 units are movably arranged in parallel between both openings in the main body, and the openings are closed at both ends of the filter unit, and the combustion exhaust gas from the inlet is passed through the filter unit. It is characterized in that the filter is made to flow out from the outlet and remove dust with the above-mentioned granular material, and the surface phase of the filter only needs to be a heat-resistant granular material, so sand or the like can be used. It is extremely inexpensive, disposable, and easy to clean when reusing.The structure of the device itself is simple and does not require complicated mechanisms or complicated controls, and the conditions of use are also very low. It is extremely inexpensive and highly durable, and in addition, the filter can be replaced with heat-resistant particles by simply pushing a new filter unit through one opening of the main unit. Since the unit is pushed out from the other opening, it can be done instantly and easily, and the dust removal operation of the device is not interrupted.

[Embodiments of the invention]

Next, the dust removal device of the present invention will be specifically explained based on an embodiment shown in the drawings.

Figure 1 shows an example in which the dust removal device of the present invention is installed in a garbage incineration facility. is the chute, (5) is the incinerator, (6) is the combustion exhaust gas cooling tower, (power is the combustion residue cooling water tank, (8) is the dust removal device, (9) is the exhaust fan, and α is the chimney. The carried garbage and other materials to be incinerated are thrown into the dust bunker (2) from the wheel platform (1), and then transported to the incinerator (5) via the chute (4) by the grab bucket of the crane (3). The combustion residue is collected in a cooling water tank (power) and incinerated.
Then, the combustion exhaust gas is removed from the cooling tower (6) by the exhaust fan (9).
) and a dust remover (8), and are discharged into the atmosphere from the chimney U■.

Figures 2 to 4 show the above-mentioned dust removal device [(8), Ql) is a mount aυ which is rectangular in plan view, and this mount Uυ
A pair of rails 02) are disposed at both ends, that is, both short edges, and a bogie (+3) carries its plurality of wheels (14) on the pair of rails 02 at both ends. Each carriage (13) is driven by a hydraulic cylinder (I! 19) installed between its lower part and the pedestal aυ, and moves between both sides of the pedestal ←υ, that is, both projection edges. It is now possible to move between departments.

Then, the outer part of each of the above-mentioned carts αJ, that is, the above-mentioned mount Oυ
A hydraulic cylinder (16) is installed on the short edge side of the support frame (1).
A plate-shaped button 08) is attached to the tip of the rond of each hydraulic cylinder tte, so that each button barrel 0 moves forward and backward from the outside to the inside of each truck 03). It has become.

In addition, the above-mentioned pedestal 0 is placed on both ends of each of the above-mentioned carts 0
A pair of rails 0!1 are provided parallel to the long edge of υ, and a pair of rails (A) are provided on both sides of the mount θυ, that is, on the measurement edge. As a result of the movement of each trolley a3, the pair of rails 0!
It is designed to connect to a pair of rails (2υ).

Then, one side of the pedestal 0υ (lower 1M in Figure 2)
On the pair of rails (a) of the part 1i), there are a plurality of
The filter units Gυ are supported in a dense manner via their plurality of wheels C32 as shown by concentrated lines and broken lines, and the cart (13) at one end of the mount 0υ (the right end in Figure 2) On a pair of rails 01, 1
The filter units C(I) are supported via their plurality of wheels I3z, as shown by two-dot chain lines.

Each of the above filter units (3υ) is a rectangular case □□□ with an open top surface filled with heat-resistant granular material (34) such as sand, and inside case 03) there is a case (c). A plurality of air permeable cylinders 06) opened in the bottom plate (35) and the upper part of the case □□□, that is, the particulate matter (
A plurality of cylindrical bodies 0η having air permeability and opening on the surface of the case C331 are provided integrally with the case C331, and these cylindrical bodies %+ (3n are the above-mentioned particulate matter 04) are provided in S of these cylindrical bodies %+ (3n is the above-mentioned particulate matter 04). The wheels 02 are supported externally on both sides of the case (c).

Each of the above cylinders (supports) G7) is made up of a large number of round rods arranged in parallel to form a circular ring, as shown in Figure 5. (2) A small gap between the holes maintains breathability.

Further, an upper ventilation cover (42) and a lower ventilation cover (43) constituting the main body (4I) are provided at one side upper part and negative side lower part of the gantry αl.

The upper ventilation cover (42) has its lower surface opened to the upper surface of the six filter units G9 on the rail, and its both end face plates (42) have the lower surface opened to the upper surface of the six filter units G9 on the rail.
It faces the outer end plate (c) of case Q in
Opposing both side plates (4η) of the case (c) in D, the upper ventilation cover (4Z is airtightly connected to the upper surface of the six filter units GD) by means of the element 1, and the lower ventilation cover ( The upper surface of the 4-ring is opened on the lower surface of the rail (6 filter units c11 on 2F11), and the bottom plate C (9 outer As well as facing the end corner, its 1Ilii side plate (
Case (4 even) in each filter unit (31)
c) Opposed to the corners on both sides of the bottom plate 09, thereby,
Lower ventilation cover (6 filter units cl on the 4th floor)
It is airtightly connected to the lower surface of D.

Therefore, each of the upper and lower ventilation covers (483
The main body (41), which is composed of The openings (!i2) on both sides of the main body (41) are closed by the side plates -η facing the case of each filter unit Gυ.

In addition, case G in each of the above filter units Sυ
L-shaped engaging portions ⑥ and protrusions 64) are provided at the upper and lower portions of the both side plates (47) of No. 3, and the engaging portions (⑥ and 64) The projecting piece 64 provided on the throat and the lower ventilation cover (42) are engaged with the square-shaped engaging portions provided on both side plates (c) of each filter unit C31 on the rail 4). Positioning and each filter unit <31) and main body (4
1) airtightness is maintained.

Furthermore, an inflow mark for combustion exhaust gas connected to the cooling tower (6) shown in Fig. 1 is formed at one end of the main body (41) where the upper ventilation cover is located, and at the other end there is a mark for inflowing the combustion exhaust gas. 1
A combustion exhaust gas outlet 66) connected to the exhaust fan (9) shown in the figure is formed, and a partition plate I5η is provided at the center inside the ventilation cover (42).
are the end plates (4
A shower (!iS) for the six filter units c3I) at the other end is provided between the partition plate CWI and the end plate (44) at the other end.
Further, a discharge port 5 (support) which can be opened and closed is provided at the bottom of one end of the lower ventilation cover (43) of the main body (41), and this discharge port (5!J)-1 is normally closed.

In addition, an endless chain link is connected to the rail (A) via a pair of sprocket buttons υ6 between the pair of rails (A) on the other side of the mount αD (upper side in Figure !L-2). A pushing piece 14) is attached to this chain in parallel, and this pushing piece (641 is a motor R63) drives a sprocket U at one end to rotate the chain. By doing so, it moves from one end toward the other end on the upper side of the chain and moves from the other end toward one end on the lower side of the chain.

Next, the operation of the dust removal device (8) will be explained.

The combustion exhaust gas from the cooling tower (6) shown in FIG. 1 enters one end of the upper ventilation cover (42) of the main body O1 from the inlet port 6!19 by the suction action of the exhaust fan (9), and then, Particulate matter (6 filter units 01) at one end
2) In between, the particulate matter enters from the surface of the particulate matter C341 and each cylindrical body 07), and then exits from each cylindrical body (end) into the lower ventilation cover (43) of the main body (41). (2) The particles of the three filter units C31) at the other end where relatively large dust is removed when passing through the lower ventilation cover f43 and are given an appropriate amount of moisture by the shower. The material (2) enters from each cylinder (to), and then the surface of the granular material 64) and each cylinder (37)
) exits from the other end inside the upper ventilation cover (421) and is guided to the exhaust fan (9) through the outlet (to), and the granules that have been given an appropriate amount of moisture by the shower 6υ are Comparatively small dust is removed when passing between the objects C34).

When replacing the filter unit c3υ, the other end of the cart 3 is moved to one side by the cylinder 09.
Support the new filter unit et+v on top,
This new filter unit Gυ is connected to the cylinder (16'
) [By pushing the moving forward and backward Butsusha Q barrel into the main body (41) from the main body (4υ other end opening 61),
Since the used filter unit Gυ is pushed out from the opening 6υ at one end of the main body (4I) onto the cart (13) at one end, the filter unit C31+ can be instantly and easily removed.
Furthermore, after moving the cart αJ at one end to the other side using the cylinder α9, the used filter unit G1) on the cart Q3) is transferred to the other side using the butureya α stage that advances and retreats using the cylinder ae. Move the filter unit 01 to the rail fixation on this rail (A).
) is rotated by a motor (to) a pushing piece (64)
K is moved onto the cart aJ at the other end, and then by moving this cart 131 to one side by the cylinder (151), the filter unit 0υ can be circulated counterclockwise in FIG. Therefore, when this filter unit 6υ is outside the main body, for example, when the filter unit Gυ is on the cart (131) at the other end that has been moved to the − side, the work platform σ; By replacing the particulate matter (b) in the filter unit Gυ from above, the filter units 0υ in the main body αυ can be replaced one after another.

In addition, when replacing the particulate matter (2) in the filter unit Gυ, the particulate matter (2) is moistened by the shower (c) during the first half of use, but is dried again by the combustion exhaust gas during the second half of use. Therefore, the granules (A) can be easily replaced.

Along with this, the temperature of the combustion exhaust gas is lowered by the heat of vaporization of moisture, so there is no fear that the exhaust air @ (9) will overheat.

In this way, this dust removal device (8) can use heat-resistant granular materials such as sand as the filter, making the filter material extremely inexpensive, and the used granular materials (34) Because there is only dust attached to the surface of the house, it is easy to clean, etc., and it is also easy to reuse.
Furthermore, the structure of the device itself is simple, does not require a complicated mechanism or complicated control, and there are no particular restrictions on usage conditions, and it is extremely inexpensive and highly durable.

Note that as long as the granules (goods) have heat resistance, other materials such as silica sand can be used instead of sand, and by changing the size of the granules (2), the seed layer can be formed. For example, if the granules (B) are made small and fine, it is effective in removing liquid dust, and if the granules 04I are made large and coarse, they can be used to remove solid horse dust. It is effective for removal, and a mixture of large and small particles (2) can also be used.

Since the head removal device (8) has a simple structure as mentioned above, it is extremely easy to increase the size and improve the processing capacity, simply by increasing the number of filter units 01) or increasing the size. Moreover, since the penalty (to) c37) is provided for each filter unit Gυ, the passage area of the combustion exhaust gas is increased and each filter unit C3
1) has also improved, so there is no need to worry about processing power at all.

In addition, in this embodiment, the main body (4υ) is
Consisting of a lower ventilation cover (4j) and a
omit the i111 face plate and open both sides of these jhl
112 in case C in filter unit C31i
33, both side plates U7) are used to close the cover, but the present invention is not limited to this, and a side plate may be provided between the upper ventilation cover 〇 and the lower ventilation cover (U7).

In addition, in this embodiment, openings C11) are provided at both ends of the main body (41), so that the openings C11) for inspecting the inside of the main body 0υ and each filter unit O1) are all mounted on one rail. Inspection, etc. will be extremely easy if the vehicle is stopped and moved to the trolley α Sheehy.

〔Effect of the invention〕

As described above, according to the present invention, high-temperature combustion exhaust gas can be treated, and the processing n-heat is extremely high, and
The structure of the device itself is simple, and the dust removal device with excellent durability can be provided at a low cost.Furthermore, the filter material, that is, particulate matter, can be removed instantly, and the combustion exhaust gas can be continuously treated. Since the material is simply heat-resistant granules, it is inexpensive and can be easily reused.

[Brief explanation of drawings]

The figures show one embodiment of the present invention. Figure A.1 is an explanatory diagram of the incineration equipment, Figure A.2 is a plan view showing a cross section of a part of the M removal device, and Figure A.3 is a partial cross-section of the M removal device. A cross-sectional side view, Figure 4 is a sectional view taken along IV-IV in Figure 2, and Figure 5 is a sectional view of the main part thereof. (8)...excluding uitt, ol)...filter unit, 04J...particles, m+on...cylindrical body, 0υ...main body, 511...opening, G9...inlet, 66)...outlet .

Claims (2)

[Claims] (1) Openings are formed at both ends of a main body having an inlet and an outlet for combustion exhaust gas, and a filter unit is provided in the main body so as to be able to pass through both openings and filled with heat-resistant granules. are movably arranged in parallel between both openings of the filter unit, and both ends of the filter unit close the openings, and the combustion exhaust gas from the inlet is allowed to flow out from the outlet via the filter unit. A dust removal device characterized in that it removes dust using granular materials. So (2) The filter unit includes a plurality of independently spaced cylindrical bodies each having air permeability and having side pressure openings at the inlet and the outlet, and each of the cylindrical bodies is buried inside the granular material. A dust removal device according to claim 1, characterized in that: