Leachate back-spraying heating system

Abstract

The utility model relates to the technical field of garbage treatment, and discloses a leachate back-spraying heating system, which comprises an air storage bin, and is provided with a material guide pipe, a heating furnace, a first electric valve and a second electric valve, so that when the leachate enters a material conveying pipe along the material guide pipe, the leachate exchanges heat with hot air in the air storage bin, and the leachate flows back to the heating furnace; then the filtrate enters a heating furnace along a material conveying pipe, meanwhile, hot air enters a hot air bin through an air conveying pipe for secondary heating and then enters the heating furnace to make contact with the filtrate for heating, and when the heat does not reach the standard, a second electric valve is closed, and meanwhile, a first electric valve is opened; at the moment, the filtrate enters the heating furnace again through the material return pipe to be heated; and when the heat reaches the standard, the first electric valve is closed, meanwhile, the second electric valve is opened, and the filtrate enters the filtering bin through the discharging pipe to be circularly heated, so that the effects that the filtrate is fully heated, and the use efficiency of the filtrate is improved are achieved.

Description

Technical Field

[0001] This utility model relates to the field of waste treatment technology, and more specifically, to a leachate recirculation heating system. Background Technology

[0002] Leachate is a type of highly challenging organic wastewater found in garbage. Currently, the treatment of leachate from municipal waste remains a difficult problem. Under normal circumstances, the pH value of leachate is between 4 and 9, the COD ranges from 2000 to 62000 mg / L, and the BOD5 ranges from 60 to 45000 mg / L. The concentration of heavy metals is basically the same as that in municipal sewage. If not treated properly, it can easily cause great pollution to the environment and is difficult to treat.

[0003] When treating leachate, leachate re-spraying technology is often used. However, existing leachate treatment systems only heat the leachate once before re-spraying, causing the leachate temperature to fall below the fermentation temperature range. This reduces the waste fermentation effect and affects the efficiency of subsequent waste incineration power generation. To solve this problem, we propose a leachate re-spraying heating system. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a leachate re-spraying heating system, which has the advantage of fully heating the leachate and thus improving the use effect of the leachate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leachate re-spraying heating system, comprising:

[0006] A gas storage chamber, on which a filter chamber is fixedly connected;

[0007] A heating mechanism is installed on the gas storage chamber;

[0008] The heating mechanism includes a feed pipe, which is fixedly connected to the bottom of the filter chamber. The feed pipe is located inside the gas storage chamber, with one end of the feed pipe fixedly inserted through one side of the gas storage chamber. The discharge end of the feed pipe is fixedly connected to a conveying pipe, and the discharge end of the conveying pipe is fixedly connected to a heating furnace. The heating furnace is fixedly connected to the surface of the gas storage chamber. The bottom of the heating furnace is fixedly connected to a discharge pipe, which is fixedly connected to the top of the filter chamber. A return pipe is fixedly connected between the heating furnace and the discharge pipe. A first electric valve is installed on the return pipe, and a second electric valve is installed on the discharge pipe. A gas conveying pipe is fixedly connected between the gas storage chamber and the heating furnace, and a hot air chamber is installed on the gas conveying pipe. The hot air chamber is fixedly connected to the surface of the filter chamber.

[0009] As a preferred embodiment of this invention, a filter screen is provided at the bottom of the filter chamber, and activated carbon adsorption particles are filled between the filter screens.

[0010] As a preferred embodiment of this utility model, the discharge end of the conveying pipe is fixedly connected to a distribution pipe, the distribution pipe is fixedly connected to the inner wall of the heating furnace, and several sets of high-pressure nozzles are fixedly installed on the distribution pipe.

[0011] As a preferred embodiment of this utility model, a pressure gauge is fixedly installed on the top of the heating furnace, and the bottom of the pressure gauge extends into the interior of the heating furnace.

[0012] As a preferred embodiment of this utility model, an air inlet is fixedly connected to one side of the gas storage chamber, and a valve is provided on the air inlet.

[0013] As a preferred embodiment of this utility model, the top of the filter chamber is fixedly connected to an inlet, the bottom of the discharge pipe is fixedly connected to an outlet pipe, and both the outlet pipe and the inlet are equipped with fixed valves.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting up a feed pipe, a heating furnace, a first electric valve, and a second electric valve, allows the leachate to exchange heat with the hot air inside the gas storage chamber when it enters the feed pipe along the feed pipe. The leachate then enters the heating furnace along the feed pipe, while the hot air enters the hot air chamber through the gas delivery pipe for secondary heating. The air then enters the heating furnace and contacts the leachate for further heating. When the temperature is insufficient, the second electric valve closes while the first electric valve opens, allowing the leachate to re-enter the heating furnace through the return pipe for reheating. When the temperature reaches the required level, the first electric valve closes while the second electric valve opens, allowing the leachate to enter the filter chamber through the discharge pipe for further recirculation and heating. This achieves sufficient heating of the leachate, thereby improving its utilization efficiency.

[0016] 2. By setting up a distribution pipe and a high-pressure nozzle, when the leachate enters the interior of the distribution pipe along the conveying pipe, the distribution pipe will divert the leachate. When the leachate is sprayed out through the high-pressure nozzle, the leachate will diffuse while atomizing, thereby increasing the contact surface with the hot air inside the heating furnace and enhancing the heating effect of the leachate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2This is a schematic diagram of the rear view structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the front sectional structure of the present invention;

[0020] Figure 4 This is a schematic cross-sectional view of the right side of this utility model;

[0021] In the diagram: 1. Gas storage chamber; 2. Filter chamber; 3. Feeding pipe; 4. Heating furnace; 5. Discharge pipe; 6. Filter screen; 7. Guide pipe; 8. Air inlet; 9. Distribution pipe; 10. High-pressure nozzle; 11. Return pipe; 12. First electric valve; 13. Second electric valve; 14. Gas supply pipe; 15. Pressure gauge; 16. Feed inlet; 17. Hot air chamber. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 4 As shown, this utility model provides a leachate re-spraying heating system, comprising:

[0024] Gas storage chamber 1, and filter chamber 2 is fixedly connected to gas storage chamber 1;

[0025] A heating mechanism is installed on the gas storage chamber 1;

[0026] The heating mechanism includes a guide pipe 7, which is fixedly connected to the bottom of the filter chamber 2. The guide pipe 7 is located inside the gas storage chamber 1, with one end of the guide pipe 7 fixedly inserted through one side of the gas storage chamber 1. The discharge end of the guide pipe 7 is fixedly connected to a conveying pipe 3, and the discharge end of the conveying pipe 3 is fixedly connected to a heating furnace 4. The heating furnace 4 is fixedly connected to the surface of the gas storage chamber 1. The bottom of the heating furnace 4 is fixedly connected to a discharge pipe 5, which is fixedly connected to the top of the filter chamber 2. A return pipe 11 is fixedly connected between the heating furnace 4 and the discharge pipe 5. A first electric valve 12 is installed on the return pipe 11, and a second electric valve 13 is installed on the discharge pipe 5. A gas conveying pipe 14 is fixedly connected between the gas storage chamber 1 and the heating furnace 4, and a hot air chamber 17 is installed on the gas conveying pipe 14. The hot air chamber 17 is fixedly connected to the surface of the filter chamber 2.

[0027] When hot air enters the gas storage chamber 1, the leachate in the filter chamber 2 will be discharged into the conveying pipe 3 along the feed pipe 7. At the same time, the leachate in the feed pipe 7 will be heated once by the hot air in the gas storage chamber 1 during its flow, and then enter the heating furnace 4 through the conveying pipe 3. At this time, the hot air in the gas storage chamber 1 will enter the hot air chamber 17 through the gas conveying pipe 14 and be heated again, and then enter the heating furnace 4. At this time, the leachate will come into contact with the hot air in the heating furnace 4. After being heated, the leachate will re-enter the filter chamber 2 through the discharge pipe 5. When the temperature of the leachate in the discharge pipe 5 does not reach the fermentation requirement, the second electric valve 13 will close and the first electric valve 12 will open. At this time, the leachate will re-enter the heating furnace 4 through the return pipe 11. When the temperature of the leachate reaches the standard, the first electric valve 12 will close and the second electric valve 13 will open. At this time, the leachate will enter the filter chamber 2 through the discharge pipe 5.

[0028] The bottom of the filter chamber 2 is equipped with a filter screen 6, and activated carbon adsorption particles are filled between the filter screens 6.

[0029] Due to the installation of filter screen 6, impurities inside the leachate will be filtered.

[0030] Among them, the discharge end of the conveying pipe 3 is fixedly connected to the distribution pipe 9, the distribution pipe 9 is fixedly connected to the inner wall of the heating furnace 4, and several sets of high-pressure nozzles 10 are fixedly installed on the distribution pipe 9.

[0031] The high-pressure nozzle 10 allows the leachate to be sprayed more finely into the interior of the heating furnace 4, thus enabling it to come into more full contact with the hot air.

[0032] A pressure gauge 15 is fixedly installed on the top of the heating furnace 4, and the bottom of the pressure gauge 15 extends into the interior of the heating furnace 4.

[0033] The presence of pressure gauge 15 facilitates real-time monitoring of the internal pressure of the heating furnace 4.

[0034] One side of the gas storage chamber 1 is fixedly connected to an air inlet 8, and a valve is installed on the air inlet 8.

[0035] The air inlet 8 facilitates the entry of air into the air storage chamber 1.

[0036] The filter chamber 2 is fixedly connected to the top of the inlet 16, and the discharge pipe 5 is fixedly connected to the bottom of the discharge pipe. Both the discharge pipe and the inlet 16 are equipped with fixed valves.

[0037] The inlet 16 facilitates the entry of leachate into the filter chamber 2, and the outlet pipe facilitates the discharge of leachate.

[0038] Working principle and usage process of this utility model:

[0039] After the leachate enters the filter chamber 2, it passes through the filter screen 6 and enters the feed pipe 7. Simultaneously, hot air enters the air storage chamber 1 through the air inlet 8, heating the leachate in the feed pipe 7. The leachate then enters the distribution pipe 9 through the feed pipe 3, and is sprayed into the heating furnace 4 through the high-pressure nozzle 10. At the same time, hot air enters the hot air chamber 17 through the air supply pipe 14 for secondary heating, and then enters the heating furnace 4 to contact the sprayed leachate, further heating it. During the second heating, the heated leachate enters the discharge pipe 5. When the temperature of the leachate is below the standard, the second electric valve 13 closes while the first electric valve 12 opens, and the leachate re-enters the heating furnace 4 through the return pipe 11 for further heating. When the temperature of the leachate reaches the standard, the first electric valve 12 closes while the second electric valve 13 opens, and the leachate re-enters the filter chamber 2 through the discharge pipe 5 for further circulating heating. This process effectively heats the leachate and improves its utilization efficiency.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leachate recirculation heating system, characterized in that, Including: A gas storage chamber (1) is fixedly connected to a filter chamber (2); A heating mechanism is provided on the gas storage chamber (1); The heating mechanism includes a guide pipe (7), which is fixedly connected to the bottom of the filter chamber (2). The guide pipe (7) is located inside the gas storage chamber (1). One end of the guide pipe (7) is fixedly inserted through one side of the gas storage chamber (1). The discharge end of the guide pipe (7) is fixedly connected to a conveying pipe (3). The discharge end of the conveying pipe (3) is fixedly connected to a heating furnace (4). The heating furnace (4) is fixedly connected to the surface of the gas storage chamber (1). The bottom of the heating furnace (4) is fixedly connected to a discharge outlet. The discharge pipe (5) is fixedly connected to the top of the filter chamber (2), the heating furnace (4) is fixedly connected to the discharge pipe (5) by a return pipe (11), the return pipe (11) is equipped with a first electric valve (12), the discharge pipe (5) is equipped with a second electric valve (13), the gas storage chamber (1) is fixedly connected to the heating furnace (4) by a gas supply pipe (14), the gas supply pipe (14) is equipped with a hot air chamber (17), and the hot air chamber (17) is fixedly connected to the surface of the filter chamber (2).

2. The leachate recirculation heating system according to claim 1, characterized in that: The bottom of the filter chamber (2) is provided with a filter screen (6), and activated carbon adsorption particles are filled between the filter screens (6).

3. The leachate recirculation heating system according to claim 1, characterized in that: The discharge end of the conveying pipe (3) is fixedly connected to the distribution pipe (9), the distribution pipe (9) is fixedly connected to the inner wall of the heating furnace (4), and several sets of high-pressure nozzles (10) are fixedly installed on the distribution pipe (9).

4. The leachate recirculation heating system according to claim 1, characterized in that: A pressure gauge (15) is fixedly installed on the top of the heating furnace (4), and the bottom of the pressure gauge (15) extends into the interior of the heating furnace (4).

5. The leachate recirculation heating system according to claim 1, characterized in that: One side of the gas storage chamber (1) is fixedly connected to an air inlet (8), and a valve is provided on the air inlet (8).

6. The leachate recirculation heating system according to claim 1, characterized in that: The top of the filter chamber (2) is fixedly connected to the inlet (16), and the bottom of the discharge pipe (5) is fixedly connected to the discharge pipe. Fixed valves are provided on both the discharge pipe and the inlet (16).

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