Fly ash treatment device for waste incineration

Abstract

The utility model belongs to the technical field of treatment devices, and discloses a waste incineration fly ash treatment device which comprises a treatment tank, supporting legs are mounted on the treatment tank, a discharge pipe is mounted at the bottom in the treatment tank, a discharge valve is mounted on the discharge pipe, a motor is mounted at the top of the treatment tank, and a discharge valve is mounted on the discharge valve. The output end of the motor is connected with stirring blades positioned in the treatment tank, and three feeding mechanisms are mounted at the top of the treatment tank; the feeding mechanism comprises a bottom pipe connected with the input end of the treatment tank, a lower valve body is installed on the bottom pipe, a metering pipe is installed on the bottom pipe in a sliding mode, an upper valve body is installed on the top of the metering pipe, a bottom plate is installed on the outer side of the bottom pipe, a top plate is installed on the top of the metering pipe, and a telescopic cylinder is installed on the bottom plate. And the output end of the telescopic cylinder is connected with the top plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing devices, and in particular relates to a fly ash processing device for garbage incineration. Background Art

[0002] The salt content of fly ash from garbage incineration is generally high, averaging 20%-43%, and can be as high as 90%. According to the latest requirements for flexible landfills, the total amount of water-soluble salt must be less than 10% before it can be buried in the landfill. If it is desalinated by water washing and then landfilled, the process is complicated and the cost is extremely high; if it is placed in a rigid landfill, the cost is also extremely high.

[0003] Waste incineration fly ash is the material collected in the heat recovery system and flue gas purification system after the incineration of domestic waste. The output of fly ash is related to the type of waste, incineration conditions, incinerator type and flue gas treatment process, and generally accounts for about 3% to 5% of the waste incineration volume. Waste incineration fly ash contains a large amount of leached toxic and harmful substances, such as heavy metals such as Pb, Zn, Cd and dioxin-type carcinogens. The main chemical components are CaO, SiO2 and Al2O3, which constitute the SiO2-Al2O3-metal oxide system;

[0004] However, the main mineral components also contain SiO2, CaCl2, Ca3Si2O7, Ca2SiO4.0.35H2O, Ca9Si6O 21 H2O, K2Al2Si2O8.3.8H2O and AlCl 3。 4Al(OH) 3。 4H2O and other silicates and aluminosilicates, so fly ash is also a useful material;

[0005] Therefore, how to deal with the fly ash from waste incineration is also a point that needs to be considered at present. Utility Model Content

[0006] In view of the problems raised by the above background technology, the purpose of the present invention is to provide a fly ash treatment device for waste incineration.

[0007] In order to achieve the above technical objectives, the technical solutions adopted by this utility model are as follows:

[0008] A fly ash treatment device for waste incineration, comprising a treatment tank, the treatment tank being equipped with support legs, a discharge pipe being installed at the bottom of the treatment tank, a discharge valve being installed on the discharge pipe, a motor being installed on the top of the treatment tank, a stirring blade located inside the treatment tank being connected to the output end of the motor, and three feeding mechanisms being installed on the top of the treatment tank;

[0009] The feeding mechanism includes a bottom tube connected to the input end of the processing tank, the bottom tube is equipped with a lower valve body, the bottom tube is slidably equipped with a metering tube, the top of the metering tube is equipped with an upper valve body, the outside of the bottom tube is equipped with a bottom plate, the top of the metering tube is equipped with a top plate, the bottom plate is equipped with a telescopic cylinder, and the output end of the telescopic cylinder is connected to the top plate.

[0010] It is further defined that the bottom of the stirring blade is connected to a scraper that fits against the inner wall of the processing tank. This design can clean the inner wall of the processing tank and prevent adhesion.

[0011] It is further defined that the input end of the metering tube is connected to a funnel, and one of the input ends of the metering tube is connected to a flange. With this design, the funnel is conducive to the filling of cement and sludge, and the flange is conducive to docking with the fly ash outlet.

[0012] It is further defined that a retaining ring is installed inside the bottom pipe. This design prevents the lower end of the metering tube from overtravel and affecting the operation of the lower valve body.

[0013] It is further defined that the metering tube is provided with scale lines. Such a design allows intuitive viewing of the capacity formed by the metering tube in conjunction with the bottom tube.

[0014] The beneficial effects of adopting the utility model are:

[0015] With the structural design of the utility model, corresponding cement, sludge and fly ash can be directly added into the treatment tank through the feeding mechanism, and then the motor is started to drive the stirring blade to rotate to achieve mixing, effectively reducing the release of soluble salt ions in the fly ash and facilitating subsequent solidification;

[0016] By adopting the structural design of the utility model, the metering tube can be moved by operating the telescopic cylinder. With the cooperation of the lower valve body and the upper valve body, the internal space of the metering tube and the bottom pipe can be changed. The purpose of quantitative addition can be achieved by coordinating the program, which is conducive to using the best ratio to complete the treatment of fly ash. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention can be further described by way of non-limiting examples given in the accompanying drawings;

[0018] Figure 1 This is a structural schematic diagram of an embodiment of a fly ash treatment device for garbage incineration according to the utility model;

[0019] Figure 2 This is a schematic cross-sectional structure diagram of a motor of an embodiment of a fly ash treatment device for garbage incineration according to the present utility model;

[0020] Figure 3 This is a schematic cross-sectional structure diagram of the bottom pipe of an embodiment of a fly ash treatment device for garbage incineration according to the present utility model;

[0021] The main component symbols are described as follows:

[0022] Processing tank 1; support leg 2; discharge pipe 3; discharge valve 4; motor 5; stirring blade 6; feeding mechanism 7; scraper 8;

[0023] Bottom pipe 71; lower valve body 72; metering tube 73; upper valve body 74; bottom plate 75; top plate 76; telescopic cylinder 77; funnel 78; flange 79; retaining ring 710. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1 、 Figure 2 、 Figure 3 As shown, the utility model is a fly ash treatment device for waste incineration, comprising a treatment tank 1, the treatment tank 1 being equipped with a support leg 2, a discharge pipe 3 being installed at the bottom of the treatment tank 1, a discharge valve 4 being installed at the discharge pipe 3, a motor 5 being installed at the top of the treatment tank 1, the output end of the motor 5 being connected to a stirring blade 6 located inside the treatment tank 1, and three feeding mechanisms 7 being installed at the top of the treatment tank 1;

[0026] The feeding mechanism 7 includes a bottom pipe 71 connected to the input end of the processing tank 1, the bottom pipe 71 is equipped with a lower valve body 72, the bottom pipe 71 is slidably equipped with a metering tube 73, the top of the metering tube 73 is equipped with an upper valve body 74, a bottom plate 75 is installed on the outside of the bottom pipe 71, a top plate 76 is installed on the top of the metering tube 73, the bottom plate 75 is equipped with a telescopic cylinder 77, and the output end of the telescopic cylinder 77 is connected to the top plate 76.

[0027] In this embodiment, when using a fly ash treatment device for waste incineration, the fly ash output end is connected to the input end of the feed mechanism, thereby achieving communication with the treatment tank 1. After the fly ash enters the treatment tank 1, cement enters the treatment tank 1 through another feed mechanism 7, and sludge enters the treatment tank 1 through a third feed mechanism 7. The fly ash, cement, and sludge are added in a ratio of 1:0.3:0.6, and the ratio can be controlled by the feed mechanism 7.

[0028] The quantitative adjustment method of the feeding mechanism 7 is as follows: first, the telescopic cylinder 77 is directly controlled to operate, driving the metering tube 73 to move upward in the bottom tube 71. Then, the space between the metering tube 73 and the bottom tube 1 separated by the lower valve body 72 and the upper valve body 74 will change, that is, the capacity will change. In other words, the running length of the telescopic cylinder 77 is adjusted to achieve the purpose of adjusting the capacity and thus achieving the quantitative purpose.

[0029] After the corresponding capacity is determined, the lower valve body 72 is closed and the upper valve body 74 is opened, and the corresponding sludge or cement will enter the bottom pipe 71 and the metering pipe 73. After filling, the upper valve body 74 is closed and the lower valve body 72 is opened, and the measured sludge or cement falls into the treatment tank 1 for mixing. Therefore, multiple reciprocating operations achieve the purpose of quantitative batch addition and ensure the effect of fly ash treatment.

[0030] Preferably, the bottom of the stirring blade 6 is connected to a scraper 8 that fits the inner wall of the treatment tank 1. This design can clean the inner wall of the treatment tank 1 and prevent adhesion. In fact, anti-adhesion measures can also be considered according to specific circumstances.

[0031] Preferably, the input end of the metering tube 73 is connected to a funnel 78, and the input end of one of the metering tubes 73 is connected to a flange 79. With this design, the funnel 78 is conducive to the addition of cement and sludge, and the flange 79 is conducive to docking with the fly ash outlet. In fact, the structural style of the input end of the metering tube 73 can also be considered according to specific circumstances.

[0032] Preferably, a retaining ring 710 is installed inside the bottom tube 71. This design prevents the lower end of the metering tube 73 from overtravel and affecting the operation of the lower valve body 74. In fact, measures to prevent the metering tube 73 from overtravel can also be considered according to specific circumstances.

[0033] It is preferred that scale lines are provided on the metering tube 73. Such a design allows one to intuitively see the capacity formed by the metering tube and the bottom tube. In fact, measures that allow one to intuitively see the current capacity can also be considered based on specific circumstances.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical principles disclosed herein shall be covered by the claims of the present invention.

Claims

1. A fly ash treatment device for waste incineration, comprising a treatment tank (1), characterized in that: The processing tank (1) is equipped with a supporting foot (2), a discharge pipe (3) is installed at the bottom of the processing tank (1), a discharge valve (4) is installed on the discharge pipe (3), a motor (5) is installed on the top of the processing tank (1), an output end of the motor (5) is connected to a stirring blade (6) located inside the processing tank (1), and three feeding mechanisms (7) are installed on the top of the processing tank (1); The feeding mechanism (7) comprises a bottom pipe (71) connected to the input end of the processing tank (1), the bottom pipe (71) is equipped with a lower valve body (72), a metering tube (73) is slidably mounted on the bottom pipe (71), an upper valve body (74) is mounted on the top of the metering tube (73), a bottom plate (75) is mounted on the outside of the bottom pipe (71), a top plate (76) is mounted on the top of the metering tube (73), a telescopic cylinder (77) is mounted on the bottom plate (75), and an output end of the telescopic cylinder (77) is connected to the top plate (76).

2. The fly ash treatment device for waste incineration according to claim 1, characterized in that: The bottom of the stirring blade (6) is connected to a scraper (8) that is in contact with the inner wall of the processing tank (1).

3. The fly ash treatment device for waste incineration according to claim 2, characterized in that: The input ends of the metering tubes (73) are connected to a funnel (78), and the input end of one of the metering tubes (73) is connected to a flange (79).

4. The fly ash treatment device for waste incineration according to claim 3, characterized in that: A retaining ring (710) is installed inside the bottom tube (71).

5. The fly ash treatment device for waste incineration according to claim 4, characterized in that: The metering tube (73) is provided with scale lines.

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