CN212772696U - Garbage leachate recovery system - Google Patents
Garbage leachate recovery system Download PDFInfo
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- CN212772696U CN212772696U CN202021629951.2U CN202021629951U CN212772696U CN 212772696 U CN212772696 U CN 212772696U CN 202021629951 U CN202021629951 U CN 202021629951U CN 212772696 U CN212772696 U CN 212772696U
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Abstract
The utility model provides a rubbish leachate recovery system, include: the leachate collecting tank, the leachate collecting unit and the leachate discharging and conveying unit; the leachate collection unit comprises: garbage pit, drainage steel comb, filtration liquid escape canal, filtration liquid drainage canal, sewage conveyer pipe, first sealed pond, sewage conveyer pipe and the sealed pond of second under the second stoker under first stoker. The advantages are that: (1) leachate generated in the garbage pit can flow into the leachate collecting tank through the leachate drainage ditch after being filtered by the drainage steel grate in time, so that the garbage stacked in the garbage pit is ensured to be more favorable for incineration; (2) and simultaneously, the garbage leachate generated by the garbage pusher of the incinerator in the process of pushing the garbage into the grate is collected in a centralized manner, so that the garbage leachate of the incineration plant is comprehensively collected, and the adverse effect of the garbage leachate on the environment is prevented. (3) Through two sets of leachate discharge conveying units which are mutually backup, the device has the advantage of high working reliability.
Description
Technical Field
The utility model belongs to the technical field of refuse treatment, concretely relates to rubbish leachate recovery system.
Background
The household garbage incineration power generation technology becomes a main mode of garbage treatment at present and is also an optimal mode for realizing the treatment of reduction, harmlessness and reclamation of the household garbage.
At present, in a household garbage incineration power generation process, a garbage pit is required to be arranged firstly, and garbage stored for 5-7 days is stacked through the garbage pit, so that the effect of buffering garbage treatment is realized; on the other hand, in the process of stacking the garbage in the garbage pit, pollutants contained in the garbage are dissolved out along with water to form leachate, so that the garbage is dehydrated, and the dehydrated garbage is more beneficial to incineration. In the prior art, the phenomenon that garbage is soaked by garbage leachate often occurs, and the incineration efficiency of the garbage after the garbage is subsequently put into a furnace is influenced.
SUMMERY OF THE UTILITY MODEL
To the defects existing in the prior art, the utility model provides a rubbish leachate recovery system, which can effectively solve the problems.
The utility model adopts the technical scheme as follows:
the utility model provides a rubbish leachate recovery system, include: the leachate collecting tank, the leachate collecting unit and the leachate discharging and conveying unit;
the configuration quantity of leachate collection unit is a plurality of, every leachate collection unit all includes: the device comprises a garbage pit, a drainage steel grate, a percolate drainage ditch, a percolate guide drainage ditch, a first material pusher lower sewage conveying pipe, a first sealing pool, a second material pusher lower sewage conveying pipe and a second sealing pool;
the bottom of the garbage pit is provided with a slope, one side of the bottom of the garbage pit at a low position is provided with a plurality of drain holes, and each drain hole is fixedly provided with the drainage steel grate; the number of the percolate drainage ditches is multiple, each percolate drainage ditch is vertically arranged, one end of each percolate drainage ditch is sleeved outside one drainage steel grate, and the other end of each percolate drainage ditch is communicated with the percolate guide drainage ditch; wherein the percolate guide and drainage channel is arranged below the refuse pit and is horizontally arranged;
the position of the leachate collecting tank is lower than the height of the leachate guide and drainage channel; the water outlet of the leachate guiding and draining channel is communicated with the water inlet of the leachate collecting tank;
the height of the first sealing pool is positioned below the first pusher pipeline and above the percolate guide and drainage channel; one end of the sewage conveying pipe below the first pusher is communicated with the first pusher pipeline; the other end of the sewage conveying pipe below the first pusher extends into the position below the liquid level of the first sealing pool; the overflow port of the first sealed pool is communicated with the water inlet of the percolate guide and drainage channel;
the high position of the second sealing pool is positioned below the second pusher pipeline and above the leachate collecting pool; one end of the sewage conveying pipe below the second pusher is communicated with the second pusher pipeline; the other end of the sewage conveying pipe below the second pusher extends into the position below the liquid level of the second sealing pool; an overflow port of the second sealed pool is communicated with a water inlet of the percolate guide and drainage channel;
the leachate discharge and conveying unit comprises a 1 st leachate submersible pump, a 1 st leachate pipeline, a 2 nd leachate submersible pump, a 2 nd leachate pipeline and a communication pipeline;
wherein the 1 st leachate submersible pump is arranged at the bottom of the leachate collecting tank; one end of the 1 st leachate pipeline is connected with the 1 st leachate submersible pump, and the other end of the 1 st leachate pipeline is communicated with a leachate treatment device; according to the drainage direction, a 1A check valve, a 1A flowmeter front end gate valve, a 1A flowmeter rear end gate valve and a 2A gate valve are sequentially arranged on the 1 st leachate pipeline; in addition, a 1A parallel pipeline is installed in the 1A flowmeter in parallel; the 1A parallel pipeline is provided with a 3A gate valve;
the 2 nd leachate submersible pump is arranged at the bottom of the leachate collecting tank; one end of the 2 nd leachate pipeline is connected with the 2 nd leachate submersible pump, and the other end of the 2 nd leachate pipeline is communicated with a leachate treatment device; according to the drainage direction, a 1B check valve, a 1B flowmeter front end gate valve, a 1B flowmeter rear end gate valve and a 2B gate valve are sequentially arranged on the 2 nd leachate pipeline; in addition, a 1B parallel pipeline is installed in the 1B flowmeter in parallel; the 1B parallel pipeline is provided with a 3B gate valve;
one end of the communicating pipeline is connected with the inlet end of the 2A gate valve, the other end of the communicating pipeline is connected with the inlet end of the 2B gate valve, and the 4 th gate valve is installed on the communicating pipeline.
Preferably, a flushing port is provided on each of rear end sides of the 1A check valve and the 1B check valve.
The utility model provides a rubbish leachate recovery system has following advantage:
(1) the bottom in the garbage pit is of a slope structure, a drain hole is formed in the lower position end, and a drain steel grate is arranged at the drain hole, so that leachate generated in the garbage pit can flow into a leachate collecting tank through a leachate drain ditch after being filtered by the drain steel grate in time, and the garbage stacked in the garbage pit is ensured to be more favorable for incineration;
(2) and simultaneously, the garbage leachate generated by the garbage pusher of the incinerator in the process of pushing the garbage into the grate is collected in a centralized manner, so that the garbage leachate of the incineration plant is comprehensively collected, and the adverse effect of the garbage leachate on the environment is prevented.
(3) The leachate in the leachate collecting tank is conveyed to the leachate treatment device for centralized treatment through two sets of leachate discharge conveying units which are backups for each other. Has the advantage of high working reliability.
Drawings
Fig. 1 is a schematic structural view of a garbage leachate recycling system provided by the present invention;
FIG. 2 is a top view of the position relationship between the drainage steel grate and the drainage hole provided by the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 2;
wherein:
1-leachate collecting tank; 2-a garbage pit; 3-draining steel grate; 4-leachate drainage ditch; 5-leachate drainage guide channel; 6-a sewage conveying pipe is arranged below the first material pusher; 7-a first sealed pool; 8-a sewage conveying pipe is arranged below the second material pusher; 9-a second sealed pool; 10-a drain hole; 11-a first pusher conduit; 12-a second pusher conduit; 13-1 st leachate submersible pump; 14-1 st leachate conduit; 15-2 nd leachate submersible pump; 16-2 nd leachate conduit; 17-a connecting duct; 18-leachate treatment means; 19-drainage hedge mounting holes;
G1-1A check valve; g2-front gate valve of the 1A flow meter; g3-1 st flowmeter; G4-1A flowmeter back end gate valve; g5-gate valve No. 2A; g6-gate valve No. 3A;
H1-1B check valve; h2-front end gate valve of the 1B flowmeter; h3-1 st flow meter; h4-rear gate valve of the 1B flowmeter; h5-gate valve 2B; h6-gate valve 3B;
f1-gate valve No. 4; c1-flushing port.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
This application realizes the collection of incineration power plant rubbish hole leachate, and collection efficiency is higher, and the rubbish that most produced oozes
The leachate finally enters a leachate collecting tank; the drainage steel grate has better corrosion resistance, ensures that more garbage can not leak out,
meanwhile, the blockage is not easy to occur; the leachate collecting tank is arranged to ensure that leachate can be effectively discharged in summer when the quantity of leachate is large, and avoidLeaching-free liquid
Silting in a garbage pool; the garbage leachate is collected and delivered out in an organized way, so that the environment pollution caused by the leachate is effectively prevented, and the odor is avoided
The air leaks out.
Referring to fig. 1, the utility model provides a pair of rubbish leachate recovery system, include: the leachate collecting tank 1, a leachate collecting unit and a leachate discharging and conveying unit.
(1) Leachate collection unit
In the practical application, the configuration quantity of leachate collecting unit is a plurality of, every the configuration mode of leachate collecting unit is the same, and two leachate collecting units are shown in the attached figure 1, and this application does not restrict the concrete quantity that sets up of leachate collecting unit, can be according to incineration boiler's concrete quantity that sets up and decide. Each leachate collection unit comprises: the device comprises a garbage pit 2, a drainage steel grate 3, a percolate drainage ditch 4, a percolate guide drainage ditch 5, a first material pusher lower sewage conveying pipe 6, a first sealing pool 7, a second material pusher lower sewage conveying pipe 8 and a second sealing pool 9;
wherein, the bottom in rubbish hole has the slope, and the leachate that the rubbish that piles up in the rubbish hole was separated out will flow to the one side of rubbish hole low position. A plurality of drain holes 10 are formed in one side of the lower position of the bottom of the garbage pit, in practical application, a 600x3400mm drain hole can be formed every 3-4 meters, and each drain hole is fixedly provided with a drain steel grate; as shown in fig. 2-5, the position relationship between the drainage steel grate and the drainage hole is shown. Specifically, the drainage steel comb covers the outside of the drainage hole, and the periphery of the drainage steel comb is fixed to the concrete wall around the drainage hole by bolts, so that the drainage steel comb is installed and fixed. The number of the percolate drainage ditches is multiple, each percolate drainage ditch is vertically arranged, one end of each percolate drainage ditch is sleeved outside one drainage steel grate, and the other end of each percolate drainage ditch is communicated with the percolate guide drainage ditch; wherein the percolate guide and drainage channel is arranged below the refuse pit and is horizontally arranged; therefore, leachate generated by the garbage accumulated in the garbage pit firstly flows to the low side of the garbage pit, passes through the filtering function of the drainage steel grate and then flows into the leachate guiding and draining ditch through the leachate draining ditch.
Wherein, the drainage steel comb is provided with a plurality of holes with the diameter of 60 mm. Here, too big diameter of the hole of the drainage steel grate will result in the garbage leakage, and too small can result in the drainage steel grate blocking. Through multiple investigation and research, the inventor obtains that the optimal diameter is 60mm, thereby not only ensuring that more garbage does not leak out, but also being less prone to blockage. Because the leachate is corrosive, the drainage steel grate needs to be corrosion resistant, and weather resistant steel with the model of 12MnCuCr is adopted. All steel components are sprayed with glass fiber reinforced plastics, and the thickness is not less than 2 mm.
The position of the leachate collecting tank is lower than the height of the leachate guide and drainage channel; the water outlet of the leachate guiding and draining channel is communicated with the water inlet of the leachate collecting tank; therefore, leachate enters the leachate drainage guide channel and is converged into a leachate collecting tank with the thickness of-11 m, the leachate collecting tank is designed to store leachate generated in the incineration plant for about 1 day, and the leachate can be effectively buffered when more leachate is generated in summer.
In addition, the garbage leachate is also generated in a centralized way when the material pusher of each incinerator pushes the garbage into the grate, so as to avoid the garbage leachate generated at the positionAdverse environmental effects, the application also being particularly configured for collectingThe structure of the landfill leachate produced here.
Specifically, a first sealing pool, a first material pusher lower sewage conveying pipe, a second sealing pool and a second material pusher lower sewage conveying pipe are arranged.
The height of the first sealing pool is positioned below the first pusher pipeline 11 and above the percolate guide and drainage channel; one end of the sewage conveying pipe below the first pusher is communicated with the first pusher pipeline; the other end of the sewage conveying pipe below the first pusher extends into the position below the liquid level of the first sealing pool; the overflow port of the first sealed pool is communicated with the water inlet of the percolate guide and drainage channel;
the high level of the second sealed pool is located below the second pusher pipe 12 and above the leachate collection pool; one end of the sewage conveying pipe below the second pusher is communicated with the second pusher pipeline; the other end of the sewage conveying pipe below the second pusher extends into the position below the liquid level of the second sealing pool; and an overflow port of the second sealing pool is communicated with a water inlet of the percolate guide and drainage channel.
The realization principle is as follows:
the material pusher of each incinerator generates garbage leachate in the process of pushing garbage into the grate, and the garbage leachate is treated according to the difference of the generated garbage leachate and the distance between the garbage leachate and the leachate collecting tank and the distance between the garbage leachate and the leachate guide and discharge channel:
if the generated garbage leachate is close to the leachate guide and discharge ditch, a mode of installing a sewage conveying pipe and a first sealed tank under a first pusher is adopted.
Leachate flows to a first sealing pool near a leachate guide and discharge channel through a sewage conveying pipe under a first material pusher by gravity, the clearance size of the first sealing pool is usually 1mx1mx1m, the first sealing pool is provided with an overflow port and a sewage discharge port, the liquid level in the first sealing pool is required to be ensured to be at a high level, and a sewage pipeline under the first material pusher extends into the liquid level to prevent odor from flowing back to the position near the material pusher. Therefore, the garbage leachate generated by the incinerator pusher flows into the first sealed tank through the sewage conveying pipe of the first pusher, and the leachate flowing into the first sealed tank flows into the leachate guide and discharge channel through the overflow port.
If the generated garbage leachate is close to the leachate collecting tank, a mode of installing a sewage conveying pipe and a second sealed tank under a second pusher is adopted. Garbage leachate generated by the incinerator pusher flows into the second sealed tank through the sewage conveying pipe below the second pusher, and leachate flowing into the second sealed tank flows into the leachate collecting tank through the overflow port.
(2) Leachate discharge conveying unit
The leachate discharge conveying unit is used for conveying leachate collected by the leachate collecting tank to a leachate treatment device, so that unified treatment of the leachate is realized, and adverse effects on the environment are avoided. Because the leachate contains impurities and is easy to block the pipeline, in the application, two sets of leachate conveying pipelines and leachate submersible pumps are configured, and the two sets of devices are communicated through the communication pipeline and are mutually standby. The concrete structure is as follows:
the leachate discharge and conveying unit comprises a 1 st leachate submersible pump 13, a 1 st leachate pipeline 14, a 2 nd leachate submersible pump 15, a 2 nd leachate pipeline 16 and a communication pipeline 17;
wherein the 1 st leachate submersible pump is arranged at the bottom of the leachate collecting tank; one end of the 1 st leachate pipeline is connected with the 1 st leachate submersible pump, and the other end of the 1 st leachate pipeline is communicated with a leachate treatment device 18; according to the drainage direction, a 1A check valve G1, a 1A flowmeter front end gate valve G2, a 1A flowmeter G3, a 1A flowmeter rear end gate valve G4 and a 2A gate valve G5 are sequentially arranged on the 1 st leachate pipeline; in addition, a 1A parallel pipeline is installed in the 1A flowmeter in parallel; the 1A parallel pipeline is provided with a 3A gate valve G6;
the 2 nd leachate submersible pump is arranged at the bottom of the leachate collecting tank; one end of the 2 nd leachate pipeline is connected with the 2 nd leachate submersible pump, and the other end of the 2 nd leachate pipeline is communicated with a leachate treatment device; according to the drainage direction, a 1B check valve H1, a 1B flowmeter front end gate valve H2, a 1B flowmeter H3, a 1B flowmeter rear end gate valve H4 and a 2B gate valve H5 are sequentially arranged on the 2 nd leachate pipeline; in addition, a 1B parallel pipeline is installed in the 1B flowmeter in parallel; the 1B parallel pipeline is provided with a 3B gate valve H6;
one end of the communicating pipeline is connected with the inlet end of the 2A gate valve, the other end of the communicating pipeline is connected with the inlet end of the 2B gate valve, and a 4 th gate valve F1 is installed on the communicating pipeline.
Further, a flushing port C1 is provided on the rear end side of each of the 1A check valve and the 1B check valve.
Therefore, when the 1 st leachate submersible pump is adopted to work and the 2 nd leachate submersible pump stops working, the control mode is as follows: closing the 1B check valve, the 1B flowmeter front end gate valve, the 1B flowmeter rear end gate valve and the 3B gate valve, and opening the 1A check valve, the 1A flowmeter front end gate valve, the 1A flowmeter rear end gate valve, the 2A gate valve, the 3A gate valve, the 4 th gate valve and the H5-2B gate valve; at this point, leachate is delivered to both leachate treatment units 18 simultaneously by a 1 st leachate submersible pump. Therefore, when one leachate submersible pump breaks down and needs maintenance, the system is not influenced to convey leachate to the two leachate treatment devices 18, and the working reliability of the system is improved.
The utility model provides a rubbish leachate recovery system has following advantage:
(1) the bottom in the garbage pit is of a slope structure, a drain hole is formed in the lower position end, and a drain steel grate is arranged at the drain hole, so that leachate generated in the garbage pit can flow into a leachate collecting tank through a leachate drain ditch after being filtered by the drain steel grate in time, and the garbage stacked in the garbage pit is ensured to be more favorable for incineration;
(2) and simultaneously, the garbage leachate generated by the garbage pusher of the incinerator in the process of pushing the garbage into the grate is collected in a centralized manner, so that the garbage leachate of the incineration plant is comprehensively collected, and the adverse effect of the garbage leachate on the environment is prevented.
(3) The leachate in the leachate collecting tank is conveyed to the leachate treatment device for centralized treatment through two sets of leachate discharge conveying units which are backups for each other. Has the advantage of high working reliability.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.
Claims (2)
1. A landfill leachate recovery system, comprising: the leachate collecting tank, the leachate collecting unit and the leachate discharging and conveying unit;
the configuration quantity of leachate collection unit is a plurality of, every leachate collection unit all includes: the device comprises a garbage pit, a drainage steel grate, a percolate drainage ditch, a percolate guide drainage ditch, a first material pusher lower sewage conveying pipe, a first sealing pool, a second material pusher lower sewage conveying pipe and a second sealing pool;
the bottom of the garbage pit is provided with a slope, one side of the bottom of the garbage pit at a low position is provided with a plurality of drain holes, and each drain hole is fixedly provided with the drainage steel grate; the number of the percolate drainage ditches is multiple, each percolate drainage ditch is vertically arranged, one end of each percolate drainage ditch is sleeved outside one drainage steel grate, and the other end of each percolate drainage ditch is communicated with the percolate guide drainage ditch; wherein the percolate guide and drainage channel is arranged below the refuse pit and is horizontally arranged;
the position of the leachate collecting tank is lower than the height of the leachate guide and drainage channel; the water outlet of the leachate guiding and draining channel is communicated with the water inlet of the leachate collecting tank;
the height of the first sealing pool is positioned below the first pusher pipeline and above the percolate guide and drainage channel; one end of the sewage conveying pipe below the first pusher is communicated with the first pusher pipeline; the other end of the sewage conveying pipe below the first pusher extends into the position below the liquid level of the first sealing pool; the overflow port of the first sealed pool is communicated with the water inlet of the percolate guide and drainage channel;
the high position of the second sealing pool is positioned below the second pusher pipeline and above the leachate collecting pool; one end of the sewage conveying pipe below the second pusher is communicated with the second pusher pipeline; the other end of the sewage conveying pipe below the second pusher extends into the position below the liquid level of the second sealing pool; an overflow port of the second sealed pool is communicated with a water inlet of the percolate guide and drainage channel;
the leachate discharge and conveying unit comprises a 1 st leachate submersible pump, a 1 st leachate pipeline, a 2 nd leachate submersible pump, a 2 nd leachate pipeline and a communication pipeline;
wherein the 1 st leachate submersible pump is arranged at the bottom of the leachate collecting tank; one end of the 1 st leachate pipeline is connected with the 1 st leachate submersible pump, and the other end of the 1 st leachate pipeline is communicated with a leachate treatment device; according to the drainage direction, a 1A check valve, a 1A flowmeter front end gate valve, a 1A flowmeter rear end gate valve and a 2A gate valve are sequentially arranged on the 1 st leachate pipeline; in addition, a 1A parallel pipeline is installed in the 1A flowmeter in parallel; the 1A parallel pipeline is provided with a 3A gate valve;
the 2 nd leachate submersible pump is arranged at the bottom of the leachate collecting tank; one end of the 2 nd leachate pipeline is connected with the 2 nd leachate submersible pump, and the other end of the 2 nd leachate pipeline is communicated with a leachate treatment device; according to the drainage direction, a 1B check valve, a 1B flowmeter front end gate valve, a 1B flowmeter rear end gate valve and a 2B gate valve are sequentially arranged on the 2 nd leachate pipeline; in addition, a 1B parallel pipeline is installed in the 1B flowmeter in parallel; the 1B parallel pipeline is provided with a 3B gate valve;
one end of the communicating pipeline is connected with the inlet end of the 2A gate valve, the other end of the communicating pipeline is connected with the inlet end of the 2B gate valve, and the 4 th gate valve is installed on the communicating pipeline.
2. The landfill leachate recovery system according to claim 1, wherein flush ports are provided on the rear end sides of the 1A check valve and the 1B check valve, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021629951.2U CN212772696U (en) | 2020-08-07 | 2020-08-07 | Garbage leachate recovery system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021629951.2U CN212772696U (en) | 2020-08-07 | 2020-08-07 | Garbage leachate recovery system |
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| CN212772696U true CN212772696U (en) | 2021-03-23 |
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