阅读说明：本技术 一种利用迷宫式烟道烘干生活垃圾的装置 (Device for drying household garbage by utilizing labyrinth flue ) 是由 步天达 朱媚生 呼斯冷 牛永禄 陈伟 于 2019-09-02 设计创作，主要内容包括：本发明公开了一种利用迷宫式烟道烘干生活垃圾的装置,该装置由生活垃圾储存仓(1)、迷宫式烟道(2)、阀门组(3)、防渗层(5)、臭气收集装置(6)构成；其中,迷宫式烟道(2)由一系列按照规则排布、可活动的烟气导流支撑件(4)组成。收运的生活垃圾平铺于生活垃圾储存仓(1),生活垃圾焚烧炉产生的高温烟气通入迷宫式烟道(2),将生活垃圾中的水分蒸发,迷宫式烟道(2)内的烟气流向可由阀门组(3)改变支撑件方向调节；这种设计不仅节省了烟气降温设备占地空间,而且可以通过改变高温烟气在烘干烟道内的流向和停留时间,烘干不同位置的生活垃圾,同时能够降低烟道出口烟气温度,既提高了生活垃圾焚烧处理效率,又保护了后续烟气净化设备。(The invention discloses a device for drying domestic garbage by utilizing a labyrinth flue, which consists of a domestic garbage storage bin (1), the labyrinth flue (2), a valve group (3), an impermeable layer (5) and an odor collecting device (6); wherein, the labyrinth flue (2) is composed of a series of movable flue gas diversion supporting pieces (4) which are arranged according to rules. The collected and transported household garbage is flatly paved in a household garbage storage bin (1), high-temperature flue gas generated by a household garbage incinerator is introduced into a labyrinth flue (2) to evaporate water in the household garbage, and the flow direction of the flue gas in the labyrinth flue (2) can be adjusted by changing the direction of a supporting piece through a valve group (3); the design not only saves the occupied space of the flue gas cooling equipment, but also can dry the domestic garbage at different positions by changing the flow direction and the residence time of the high-temperature flue gas in the drying flue, and simultaneously can reduce the flue gas temperature at the outlet of the flue, thereby not only improving the incineration treatment efficiency of the domestic garbage, but also protecting the subsequent flue gas purification equipment.)

1. A device for drying domestic garbage by utilizing a labyrinth flue comprises a domestic garbage storage bin (1), a labyrinth flue (2), a valve group (3), an impermeable layer (5) and an odor collection device (6); the household garbage storage bin (1) is a semi-closed space with the functions of storage, seepage prevention and odor collection; the device is characterized in that the labyrinth flue (2) consists of a series of movable flue gas diversion supporting pieces (4) which are arranged according to a certain rule and are positioned below the household garbage storage bin (1); the valve group (3) is dispersed on four sides of the labyrinth flue (2) and respectively controls different flue gas flow guide supporting pieces (4).

2. The device for drying household garbage by utilizing the labyrinth flue as claimed in claim 1, wherein the flue gas guiding support member (4) can be arranged in any direction in the labyrinth flue (2).

3. the device for drying the household garbage by using the labyrinth flue as claimed in claim 1, wherein the arrangement direction of the flue gas guiding support member (4) is changed by adjusting the valve set (3) to guide the flue gas to the position where the household garbage is stacked in the household garbage storage bin (1), so as to change the retention time of the flue gas in the labyrinth flue (2).

4. The device for drying the domestic garbage by using the labyrinth flue as claimed in claims 1 to 3, wherein the moisture content of the garbage at the position where the garbage is piled up in the domestic garbage storage bin (1) is reduced to 15 to 20 percent.

5. The device for drying household garbage by using the labyrinth flue as claimed in claims 1-4, wherein the temperature of the flue gas at the outlet of the labyrinth flue is reduced to 100-200 ℃.

Technical Field

The invention belongs to the technical field of household garbage treatment, and particularly relates to a device for drying household garbage by utilizing a labyrinth flue.

Background

In rural areas of China, along with the improvement of living standard of people, the generation quantity of domestic garbage is increased year by year, and the phenomena of random garbage dumping and garbage village enclosing are not completely solved. Small-sized incinerators capable of harmlessly treating household garbage on site have been gradually popular in the market. However, in the actual operation process, the native domestic garbage with high water content leads to low incineration speed and low treatment efficiency, and the water content of the domestic garbage can be reduced through the domestic garbage pre-drying technology, so that the incineration speed is increased.

For example, in the Chinese patent application No. 201610501545.X, "a device and a method for drying garbage by using energy generated by garbage incineration" in which flue gas waste heat utilizers formed by hollow boxes are connected in series, and garbage is dried by using heat generated by self combustion of garbage, so that waste heat resource utilization is realized; the Chinese patent with the application number of 1177081A, a new process for drying garbage and the Chinese patent with the application number of 1190179A, a new method for drying garbage by using preheated air, use an induced draft fan to introduce hot flue gas generated by burning the garbage into a rotary drum of a dryer to directly contact with household garbage, thereby achieving the purpose of drying the garbage. In the invention 'a domestic garbage drying device' with application number 201710203529.7, a drying channel in domestic garbage drying equipment is arranged at the top of a tunnel type baking brick kiln, and the domestic garbage in the drying channel is heated and dried by using heat in the tunnel type baking brick kiln.

The household garbage drying device is structurally and structurally innovated, the subsequent household garbage is dried by using the heat generated by household garbage incineration, the water content is reduced, the garbage incineration efficiency is improved, the garbage treatment period is shortened, and the problem of difficult garbage treatment is solved to a certain extent. However, the garbage drying facilities all have the problem that the flow direction of high-temperature flue gas in the drying facilities cannot be adjusted according to the components and the moisture content of incoming household garbage materials, and then the drying degree and the flue gas outlet temperature of different storage positions of the household garbage are adjusted. Therefore, the structural improvement of the existing household garbage drying facilities to further improve the incineration treatment effect is still the pursuit of researchers in the field.

Disclosure of Invention

In view of the above, the present invention aims to solve the defects of the prior art, and aims to provide a device for drying domestic garbage by using a labyrinth flue. By the device, the flow direction and the residence time of the high-temperature flue gas in the drying facility are adjusted according to the components and the moisture content of the incoming household garbage, the moisture content of the household garbage at different storage positions is adjusted to be lower than 20%, and the temperature of a flue gas outlet is reduced to 100-plus-material 200 ℃.

In order to achieve the purpose, the invention adopts the following technical scheme:

A device for drying domestic garbage by utilizing a labyrinth flue comprises a domestic garbage storage bin 1, a labyrinth flue 2, a valve group 3, an impermeable layer 5 and an odor collecting device 6; the household garbage storage bin 1 is a semi-closed space with the functions of storage, seepage prevention and odor collection; the device is characterized in that the labyrinth flue 2 consists of a series of movable flue gas diversion supporting pieces 4 which are arranged according to a certain rule and are positioned below the household garbage storage bin 1; the valve group 3 is distributed on four sides of the labyrinth flue 2 and respectively controls different flue gas flow guide supporting pieces 4.

As a further improvement to the above solution, the flue gas flow guiding support members 4 may be arranged in any direction in the labyrinth flue 2, and the flue gas flow direction is changed according to the arrangement direction.

As a further improvement of the scheme, the arrangement direction of the flue gas diversion supporting pieces 4 is adjusted and changed by the valve group 3, the flue gas is guided to flow to the position where more domestic garbage is stacked in the domestic garbage storage bin 1, and the retention time of the flue gas in the labyrinth flue is further changed.

As a further improvement to the above scheme, the valve group leads the flue gas to flow to the position where the household garbage is stacked in the household garbage storage bin 1, so that the moisture content of the garbage stacked in the position where the garbage is stacked in the household garbage storage bin 1 is reduced to 15% -20%, and the incineration efficiency of the dried garbage is remarkably improved.

As a further improvement of the scheme, the valve group 3 changes the temperature of the flue gas at the outlet of the labyrinth flue 2 by changing the residence time of the flue gas in the labyrinth flue 2, the temperature of the flue gas at the outlet is reduced to 100-200 ℃, so that subsequent flue gas purification facilities are protected from being blocked by low-temperature condensed water and damaged by high temperature, and the longer the residence time is, the lower the temperature of the flue gas at the outlet is.

The invention has the following beneficial effects:

The design of the invention utilizes the heat generated by self incineration of the garbage to dry the subsequent garbage, thereby utilizing the waste heat in the high-temperature flue gas and improving the incineration efficiency of the household garbage.

The household garbage drying facility is arranged below the household garbage storage bin 1, so that the occupied space of the flue gas cooling equipment is saved.

Daily household garbage incoming materials are stored in different positions of the household garbage storage bin 1, the flow direction of high-temperature flue gas in the drying flue can be changed conveniently by adjusting the valve group 3, the household garbage in different positions can be adjusted, and the high-temperature flue gas waste heat resources can be fully utilized. When the temperature of the inlet flue gas is too high or too low, the residence time of the flue gas in the labyrinth flue 2 is changed by adjusting the valve group 3, and the temperature of the outlet flue gas is adjusted within a proper range, so that subsequent flue gas purification facilities are protected, and the service life is prolonged.

Drawings

Fig. 1 is a sectional view showing the structure of a device for drying domestic garbage by using a labyrinth flue.

FIG. 2 is a top view of the labyrinth stack of example 1.

FIG. 3 is a top view of the labyrinth stack of example 2.

The correspondence between each reference number and each part name in the drawings is as follows: the device comprises a household garbage storage bin 1, a labyrinth flue 2, a valve group 3, a flue gas diversion support member 4, an impermeable layer 5 and an odor collection device 6.

Detailed Description

For better understanding of the objects, aspects and advantages of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings, which are included to provide a more complete description of the invention, and the scope of the invention is not limited by the examples.