CN213448581U - Automatic monitoring device for safety landfill - Google Patents

Abstract

The utility model relates to a safe landfill automatic monitoring device, a serial communication port, monitoring devices includes: monitoring well, exhaust well, barrier layer and gas processing apparatus. The impermeable layer is arranged at the bottom of the safe landfill site; the device comprises a pH value detection part, a liquid level detection part and a water body conductivity detection part inside a monitoring well; the exhaust well is provided with a plurality of exhaust holes, and the outer wall of the exhaust well is provided with a temperature detection component. The automatic monitoring device for the safe landfill site can effectively monitor the refuse landfill site by means of a monitoring well, an exhaust well, an impermeable layer and a gas treatment device, and achieves odorless gas emission.

Description

Automatic monitoring device for safety landfill

Technical Field

The utility model belongs to the technical field of waste treatment, in particular to safe landfill automatic monitoring device.

Background

With the continuous development of economy and society, the solid waste is increasing day by day. With the increasing production of waste, the disposal of solid waste is of increasing concern. The existing solid waste is generally treated by adopting a landfill method. In recent years, with the rise of the aerobic remediation technology of the refuse landfill, the ecological remediation speed of the refuse landfill is greatly accelerated, the stabilization process of the landfill is qualitatively changed, the stabilization time of a landfill body is shortened to 2-3 years from decades of the traditional anaerobic degradation by the aerobic remediation technology, but if the technical parameters of the aerobic remediation are detected improperly, the control process is unreasonable, secondary pollution is easy to generate, and dangerous disasters such as explosion, fire, landslide and the like can occur. The traditional landfill monitoring system cannot meet the operating condition of the aerobic remediation technology.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a safe landfill automatic monitoring device, can monitor humidity, temperature, landfill gas etc. in the rubbish heap body of landfill, can in time know the degradation condition of the internal portion rubbish of landfill so that effectively deal with.

An automatic monitoring device for a safety landfill, the monitoring device comprising: the system comprises a monitoring well, an exhaust well, an impermeable layer and a gas treatment device;

the impermeable layer is arranged at the bottom of the safe landfill site; the impermeable layer comprises a plane layer and a surrounding barrier;

the monitoring well vertically penetrates into the upper surface of the plane layer; the side wall of the monitoring well is provided with a liquid inlet hole;

the exhaust well and the monitoring well are arranged in parallel; the exhaust well is provided with a plurality of exhaust wells; the exhaust wells are arranged in a straight line at equal intervals; the side wall of the exhaust well is provided with an air inlet; an isolation layer is arranged at the air inlet;

the gas treatment device is arranged at the outlet of the exhaust well; the gas treatment device is communicated with the interior of the exhaust well.

Preferably, the bottom end of the monitoring well is of a conical structure with an upward opening; the monitoring well comprises an outer protective layer; the monitoring well comprises a liquid level detection part, a conductivity detection part and a pH value detection part.

Preferably, the barrier layer is a gas permeable membrane.

Preferably, the monitoring device further comprises a thermoelectric generator.

Preferably, a temperature detection member is provided outside the exhaust well.

Has the advantages that: the utility model provides a temperature in safety landfill automatic monitoring device relies on the air discharge well can carry out temperature detection to landfill inside, relies on the easy heat conduction wall of a well to reduce landfill. The gas treatment device can perform odorless discharge on gas. The monitoring well can rely on inside detection part, carries out corresponding information monitoring, and bottom toper structure can concentrate the leachate, the monitoring of being convenient for.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of an exhaust well;

fig. 3 is a schematic diagram of the structure of the monitoring well.

In the figure, 1, a garbage dump; 2. a monitoring well; 201. monitoring the well lid; 202. monitoring the well wall; 203. a liquid inlet hole; 204. a pH value detection part; 205. a liquid level detection section; 206. a conductivity detection section; 3. an exhaust well; 301. an exhaust well cover; 302. an exhaust outlet; 303. an exhaust shaft wall; 304. a temperature detection part; 305. an isolation layer; 306. an air inlet; 4. an impermeable layer; 401. a planar layer; 402. fencing; 5. a gas processing device.

Detailed Description

The invention will be further described with reference to the accompanying drawings, which are provided for illustration of specific embodiments of the invention and are not to be construed as in any way limiting the invention, as follows:

as shown in fig. 1, an automatic monitoring device for a safety landfill comprises a monitoring well 2, an exhaust well 3, an impermeable layer 4 and a gas processing device 5.

The impermeable layer 4 is arranged at the bottom of the garbage stack body 1 and comprises a plane layer 401 and a surrounding barrier 402, wherein the surrounding barrier 402 is positioned at the upper part of the plane layer 401, and the surrounding barrier and the plane layer form a box body structure with an upward opening. The impermeable layer 4 can prevent the leachate in the garbage stack body 1 from flowing into the soil, and the soil pollution is avoided. Enclose and keep off 402 can the effective control leachate flow area, prevent that leachate from polluting the soil of rubbish heap 1 side, distinguish the leachate area of bottom in rubbish heap 1 simultaneously, and each region of being convenient for monitors respectively. The monitoring well 2 and the exhaust well 3 are both arranged in the garbage pile body 1. The monitoring well 2 vertically penetrates into the bottom of the garbage pile body 1 to be in contact with the plane layer 401, and can effectively monitor the leachate at the bottommost part of the garbage pile body 1. The exhaust well 3 is arranged in the garbage pile body 1 and is parallel to the monitoring well 2. The exhaust wells 3 are arranged in a plurality according to the length of the garbage pile 1 and are arranged in a straight line at equal intervals. Because rubbish heap body 1 has the gas permeability of certain extent, the exhaust range of every exhaust well 3 is the cylinder region that uses it as the center, and a plurality of exhaust wells 3 that are the straight line and arrange can exhaust to a plurality of regions of rubbish heap body 1 length within range, and then can dredge whole rubbish heap body 1. The gas treatment device 5 is a cavity structure with an adsorbent inside, the inlet end of the gas treatment device is arranged at the outlet of the exhaust well 3 and is communicated with the inside of the exhaust well 3, and the outlet end of the gas treatment device is communicated with the atmosphere. The gas treatment device 5 can adsorb odor from the malodorous gas discharged from the exhaust well 3. The adsorbent is preferably activated carbon.

As shown in fig. 2, the monitoring well wall 202 of the monitoring well 2 is provided with a plurality of liquid inlet holes 203, and the upper end of the monitoring well 2 is provided with a monitoring well cover 201. 2 bottoms of monitoring well are the ascending toper structure of opening, can concentrate the leachate in the monitoring well 2, are convenient for detect. The outside of monitoring well 2 has the outside inoxidizing coating of marble material, can reduce the signal interference of external signal to 2 inside monitoring wells. PH valve detection part 204, liquid level detection part 205, water conductivity detection part 206 all are located inside monitoring well 2, rely on external power supply power to with outside PLC electric connection. The pH value detection part 204, the liquid level detection part 205 and the water conductivity detection part 206 are all corresponding conventional sensors sold in the market.

As shown in fig. 3, the exhaust well wall 303 of the exhaust well 3 is provided with a plurality of air inlet holes 306, and the upper end of the exhaust well wall is provided with an exhaust well cover 301. The air inlet hole 306 enables the air emitted from the garbage stack 1 to enter the air outlet shaft 3 and to be discharged through the air outlet 302. The exhaust shaft wall 303 is made of a material with good heat conduction, so that heat generated by oxidation reaction in the garbage pile 1 can be conveniently and timely conducted to the outside of the garbage pile, and fire disasters caused by spontaneous combustion due to overhigh temperature of the oxidation reaction can be avoided. The temperature detection component 304 is arranged outside the exhaust well wall 303, is powered by an external power supply and is electrically connected with an external PLC. The outer part of the exhaust shaft wall 303 is provided with an isolating layer 305 corresponding to the air inlet hole 306, and the isolating layer 305 is a gas permeable membrane which can isolate liquid and only allow gas to enter the exhaust shaft 3.

Preferably, the gas permeable membrane is made of GORE-TEX (golts) thin film material manufactured by GORE & Associates, Inc.

In some embodiments, an automatic monitoring device for a safety landfill further comprises a thermoelectric generator for generating electricity by means of the seebeck effect. The thermoelectric generator is arranged at the upper end of the exhaust well 3 and comprises a heat collecting sheet and a radiating sheet which are made of heat conducting materials, a thermoelectric generation chip is arranged between the heat collecting sheet and the radiating sheet, and the thermoelectric generation chip adopts a conventional thermoelectric generation chip sold in the market. The thermoelectric generator generates power by utilizing the difference between the temperature conducted by the wall of the exhaust well 3 and the atmospheric environment temperature, so that the heat generated by the oxidation reaction of the refuse dump 1 in the refuse landfill can be recycled.

Thus, it should be understood by those skilled in the art that while exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations and modifications can be made in accordance with the principles of the invention without departing from the spirit and scope of the invention, which is broadly defined and defined herein. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (5)

1. An automatic monitoring device for a safety landfill, the monitoring device comprising: the device comprises a monitoring well (2), an exhaust well (3), an impermeable layer (4) and a gas processing device (5);

the impermeable layer (4) is arranged at the bottom of the safe landfill site; the impermeable layer (4) comprises a plane layer (401) and a barrier (402);

the monitoring well (2) vertically penetrates into the upper surface of the plane layer (401); the side wall of the monitoring well (2) is provided with a liquid inlet hole (203);

the exhaust well (3) and the monitoring well (2) are arranged in parallel; the exhaust well (3) is provided with a plurality of exhaust wells; the exhaust wells (3) are linearly arranged at equal intervals; the side wall of the exhaust well (3) is provided with an air inlet hole (306); an isolating layer (305) is arranged at the air inlet hole (306);

the gas treatment device (5) is arranged at the outlet of the exhaust well (3); the gas treatment device (5) is communicated with the interior of the exhaust well (3).

2. The monitoring device according to claim 1, characterized in that the bottom end of the monitoring well (2) is of an upward-opening conical structure; the monitoring well (2) comprises an outer protective layer; the monitoring well (2) comprises a liquid level detection component (205), a conductivity detection component (206) and a pH value detection component (204) inside.

3. The monitoring device according to claim 1, wherein the isolating layer (305) is a gas permeable membrane.

4. The monitoring device of claim 1, further comprising a thermoelectric generator.

5. A monitoring device according to claim 1, characterised in that a temperature detection means (304) is arranged outside the exhaust well (3).

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