CN210229376U

CN210229376U - Gravity settling dust remover matched with rotary kiln

Info

Publication number: CN210229376U
Application number: CN201920797231.8U
Authority: CN
Inventors: Rong Zeng; 曾榕; Feidong Zeng; 曾飞东; Yong Wang; 王勇
Original assignee: Shimian Dongshun Zinc Industry Co ltd
Current assignee: Shimian Dongshun Zinc Industry Co ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-04-03
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a gravity settling dust remover matched with a rotary kiln, which comprises a settling chamber, an ash collecting hopper, an air inlet, an air outlet and a baffle plate, wherein the air inlet and the air outlet are arranged at two ends of the settling chamber; the lower side edge of the first baffle plate is provided with a spraying water pipe, the spraying water pipe is provided with a spraying hole, and the spraying water pipe is connected with a supercharging device outside the settling chamber. The gravity settling dust remover is provided with the baffle plate and the spray water pipe, so that the circulation channel is effectively prolonged, the movement direction of flue gas is changed, the settling efficiency of particulate matters is improved, the size of the dust remover is reduced, and less space is occupied.

Description

Gravity settling dust remover matched with rotary kiln

Technical Field

The utility model relates to a dust collector technical field of rotary kiln especially relates to a gravity settling dust remover supporting with rotary kiln.

Background

At present, enterprises for producing secondary zinc oxide by treating zinc-containing waste residues in China mostly adopt a rotary kiln smelting method for production. The method is that zinc-containing waste residue is mixed with anthracite according to a certain mass ratio; putting the obtained mixed ingredients into a rotary kiln for high-temperature smelting; when in high-temperature smelting, the zinc-containing waste slag is melted to form a melt, and the melt is overheated to form smoke and kiln slag; discharging the kiln slag from the rotary kiln, cooling, crushing, sieving and other treatment to obtain alloy powder and tailings; the smoke is treated by a gravity settling chamber, cloth bag dust removal and the like, and the smoke dust is collected to obtain the secondary zinc oxide product. In the production process, the smoke dust discharged by the rotary kiln enters a gravity settling chamber for pre-dedusting treatment. The traditional gravity settling chamber utilizes the fact that after dust-containing flue gas enters the gravity settling chamber, the flow cross section is enlarged, the flow velocity is reduced, and particles contained in the flue gas are slowly settled downwards under the action of gravity to separate the particles from the gas. The traditional gravity settling chamber has the advantages of simple structure, low manufacturing cost, convenience in installation and maintenance and the like. However, the dust remover has the disadvantages of large volume, large occupied area, low dust removal efficiency and the like, so improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gravity settling dust remover matched with a rotary kiln aiming at the defects existing in the prior art, the volume of the dust remover is reduced, the occupied space is less, and the dust removal efficiency is high.

In order to realize the purpose, the utility model adopts the technical scheme that:

a gravity settling dust remover matched with a rotary kiln comprises a settling chamber, an ash collecting hopper, an air inlet, an air outlet and a baffle plate, wherein the air inlet and the air outlet are arranged at two end parts of the settling chamber; the side edge of the lower side of the first baffle plate is provided with a spraying water pipe, the spraying water pipe is provided with a spraying hole, and the spraying water pipe is connected with a supercharging device outside the settling chamber.

Furthermore, the baffle plate also comprises a fifth baffle plate which is arranged at the upper part of the settling chamber close to the air outlet end; and a spraying water pipe is arranged at the lower side edge of the fifth baffle plate.

Further, the thickness of the first baffle plate and the thickness of the fifth baffle plate are both larger than or equal to the diameter of the spray water pipe.

Further, the air inlet and the air outlet are arranged on the upper parts of the side walls of the two end parts of the settling chamber.

Furthermore, the areas of the first baffle plate, the second baffle plate, the third baffle plate, the fourth baffle plate and the fifth baffle plate are 1/2-3/4 of the cross section area of the airflow channel of the settling chamber.

Furthermore, the number of the ash collecting hoppers is 3, and the second baffle plate and the fourth baffle plate are arranged at the joint of two adjacent ash collecting hoppers.

Further, the bottom of the ash collecting hopper is provided with an outlet, and the outlet is provided with a gate valve.

Compared with the prior art, the beneficial effects of the utility model are that:

the gravity settling dust remover of the utility model is provided with the baffle plates arranged at the upper, lower, front and back sides on the airflow channel in the settling chamber, and through reducing the airflow speed and prolonging the circulation distance, the time of the smoke passing through the settling chamber is increased, so that the particles are more easily settled; meanwhile, the direction of the air flow is changed, so that particles are settled down due to inertia impact on the baffle plate, and the settling efficiency of the particulate matter is effectively improved. The spraying water pipe is installed along the edge to first baffler and fifth baffler lower part, and the spraying water pipe is connected with supercharging equipment, and the during operation can switch on the water pipe, and the running water gets into the spraying water pipe after the supercharging equipment pressure boost in, and the atomizing hole blowout atomizing steam, particulate matter in the flue gas and atomizing steam contact increase weight and adhesive force, change and subside, and still can increase the settlement rate of lighter granule, increase dust removal effect. The utility model discloses a gravity settling dust remover is equipped with the polylith baffling board because of being equipped with in the equidirectional in the deposit, has effectively prolonged the distance of flue gas circulation, and the length of deposit room can shorten relatively, reduces the total volume of dust remover, and this dust remover simple structure, and the installation is maintained conveniently.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2 is a schematic top view of the embodiment of the present invention.

Fig. 3 is a schematic structural view of the first baffle plate and the fifth baffle plate and the spray water pipe in the embodiment of the present invention.

Reference numerals:

100: a settling chamber; 110: an air inlet; 120: an air outlet; 200: a dust collecting hopper; 210: a gate valve; 300: a baffle plate; 310: a first baffle plate; 320: a second baffle plate; 330: a third baffle plate; 340: a fourth baffle plate; 350: a fifth baffle plate; 400: a spray water pipe; 410: and (4) spraying holes.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "length", "thickness", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that a product of the present invention is conventionally placed when in use, or orientations or positional relationships that a person skilled in the art conventionally understands, and merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 3, an embodiment of the present invention provides a gravity settling dust collector matched with a rotary kiln, which includes a settling chamber 100, an ash collecting hopper 200 and a baffle plate 300. The settling chamber 100 has a rectangular parallelepiped shape, and has openings at both ends, i.e., an air inlet 110 and an air outlet 120. The baffle 300 is installed inside the settling chamber 100; the ash collecting hopper 200 is an inverted cone structure, is installed below the settling chamber 100, and is communicated with the settling chamber 100.

Baffle 300 includes first baffle 310, second baffle 320, third baffle 330, fourth baffle 340, and fifth baffle 350. The 5 baffles 300 are arranged in sequence from the inlet 110 end to the outlet 120 end at equal intervals. Wherein the first baffle plate 310 is installed at the upper portion of the settling chamber 100; the second baffle 320 is installed at the lower part of the settling chamber 100; the third baffle 330 is installed on the rear sidewall of the settling chamber 100; the fourth baffle 340 is installed on the front side wall of the settling chamber 100; the fifth baffle 350 is installed at an upper portion of the settling chamber 100 near the end of the air outlet 120. Obviously, the positions of the third baffle 330 and the fourth baffle 340 on the front and rear side walls can be switched.

The lower portions of the first and

fifth baffles

310 and 350 are provided with spray water pipes 400 along the lower side edges. A plurality of spray holes 410 are formed in the spray water pipe 400, and the spray holes 410 are installed in a spray nozzle; the spray water pipe 400 passes through the sidewall of the settling chamber 100 and is connected to a pressurizing means (not shown) outside the settling chamber 100. When the water spraying device is used, the spraying water pipe 400 is communicated with a tap water pipe, tap water enters the spraying water pipe 400 after being pressurized by a pressurizing device, and high-pressure water is sprayed out through a spray head at the position of the spraying hole 410 to form atomized water vapor. The spray holes 410 are arranged obliquely downwards towards the lower side and the two sides in the embodiment, so that downward potential energy is provided, and the sedimentation efficiency of particles is increased. In this embodiment, the thicknesses of the first baffle plate 310 and the fifth baffle plate 350 are both greater than or equal to the diameter of the spray water pipe 400, and when the spray water pipe 400 is installed, the spray water pipe 400 is installed along the central line of the lower side of the baffle plate 300; when the particulate matter settles down the surface of the baffle 300 after striking the baffle 300, it does not deposit on the spray water tubes 400.

In this embodiment, the gas inlet 110 and the gas outlet 120 are disposed at the upper portion of the sidewall at the two ends of the settling chamber 100, and when the flue gas enters, the diameter of the flue gas impacts the first baffle plate 310 installed at the upper portion of the settling chamber 100; when the flue gas is discharged from the gas outlet 120, the flue gas needs to bypass the fifth baffle 350, so that the diameter of the flue gas discharged from the channel partitioned by the fourth baffle 340 is prevented from being discharged from the gas outlet 120, and the settling efficiency of the particle dust is effectively increased.

The embodiment of the utility model provides an in, the area of first baffler 310, second baffler 320, third baffler 330, fourth baffler 340 and fifth baffler 350 is 1/2 ~ 3/4 of settling chamber 100 airflow channel sectional area, guarantees to play the effect that the baffling changes the flue gas flow direction.

The ash collecting bucket 200 is an inverted cone structure, 3 ash collecting buckets are arranged, the ash collecting buckets are arranged on the bottom surface of the settling chamber 100 in parallel in a row, and the interior of the ash collecting bucket 200 is communicated with the inner cavity of the settling chamber 100. The second baffle 320 is positioned at the joint of two adjacent ash collecting hoppers 200 at the left side; the fourth baffle 340 is located at the junction of two adjacent ash hoppers 200 on the right. The bottom of the dust collecting hopper 200 is provided with an outlet for collecting the discharged smoke dust, the outlet is provided with a gate valve 210, and the gate valve 210 can open and close the outlet of the dust collecting hopper 200.

Claims

1. The utility model provides a gravity settling dust remover with rotary kiln is supporting, includes settling chamber (100), ash collecting hopper (200), air inlet (110), gas outlet (120) and baffling board (300), air inlet (110) with gas outlet (120) are located the both ends of settling chamber (100), baffling board (300) install in settling chamber (100), ash collecting hopper (200) are located settling chamber (100) below, its characterized in that, baffling board (300) include first baffling board (310), second baffling board (320), third baffling board (330) and fourth baffling board (340) that set gradually to gas outlet (120) end by air inlet (110), settling chamber (100) upper portion is located to first baffling board (310), settling chamber (100) lower part is located to second baffling board (320), preceding, gas outlet (100) of settling chamber (100) are located respectively to third baffling board (330) and fourth baffling board (340), On the rear side wall; the edge of the lower side of the first baffle plate (310) is provided with a spray water pipe (400), the spray water pipe (400) is provided with a spray hole (410), and the spray water pipe (400) is connected with a pressurizing device outside the settling chamber (100).

2. The gravity settling dust collector matched with the rotary kiln as claimed in claim 1, wherein the baffle plate (300) further comprises a fifth baffle plate (350), and the fifth baffle plate (350) is arranged at the upper part of the settling chamber (100) close to the air outlet (120); and a spray water pipe (400) is arranged at the lower side edge of the fifth baffle plate (350).

3. The gravity settling dust collector matched with the rotary kiln as claimed in claim 2, wherein the thickness of the first baffle plate (310) and the thickness of the fifth baffle plate (350) are both larger than or equal to the diameter of the spray water pipe (400).

4. The gravity settling dust collector as claimed in claim 1 or 2, wherein the gas inlet (110) and the gas outlet (120) are provided at the upper parts of the side walls of the two end parts of the settling chamber (100).

5. The gravity settling dust collector matched with the rotary kiln as claimed in claim 3, wherein the areas of the first baffle plate (310), the second baffle plate (320), the third baffle plate (330), the fourth baffle plate (340) and the fifth baffle plate (350) are 1/2-3/4 of the cross section area of the airflow channel of the settling chamber (100).

6. The gravity settling dust collector matched with the rotary kiln as claimed in claim 1, wherein the number of the dust collecting hoppers (200) is 3, and the second baffle plate (320) and the fourth baffle plate (340) are arranged at the joint of two adjacent dust collecting hoppers (200).

7. The gravity settling dust collector matched with the rotary kiln as claimed in claim 1 or 6, wherein an outlet is arranged at the bottom of the dust collecting hopper (200), and a gate valve (210) is arranged at the outlet.