Leachate grid plate dredging vehicle

Abstract

The utility model discloses a leachate grid plate dredging vehicle, comprising: a vehicle body; a power mechanism, arranged on the vehicle body; a dredging mechanism, comprising: a column plate, slidably arranged on the vehicle body, driven to move by the power mechanism; a first dredging column, arranged on the column plate, driven by the power mechanism to dredge the leachate grid plate; the dredging mechanism further comprises: a nitrogen gun blowing system, comprising: a second dredging column, arranged on the column plate, driven by the power mechanism to dredge the leachate grid plate; a nitrogen gun, connected to the second dredging column to release compressed nitrogen to the second dredging column for blowing. The leachate grid plate dredging vehicle increases the impact effect by releasing compressed nitrogen.

Description

Technical Field

[0001] The utility model relates to the field of garbage bin leachate treatment, and more specifically to a leachate grid plate dredging vehicle. Background Art

[0002] Waste incineration technology has developed rapidly in recent years and has gradually become the mainstream waste terminal disposal technology. After domestic waste enters the incineration power plant, it needs to be fermented in the garbage bin for 5 to 7 days to reduce the moisture content, increase the calorific value entering the furnace, and further improve the incineration efficiency.

[0003] The water produced by garbage fermentation is called leachate, which usually flows out from the grating plate at the bottom of the garbage bin and is disposed of in a collection ditch.

[0004] In actual operation, due to the limited operating space of the grab bucket, the garbage on the wall is not loose enough, which is easy to harden over time and block the grille plate, further making it difficult to discharge the leachate and affecting the final combustion effect.

[0005] In addition, for projects in the north, garbage is often in a frozen state in winter, and the unloading door is usually arranged on the same side wall as the leachate grille. The newly entered frozen garbage falls along the wall, aggravating the blockage of the grille.

[0006] At present, power plants mainly rely on manual poking with sticks or hydraulic flushing to unclog the grid plates. Since the leachate channels are full of foul odors, large amounts of toxic hydrogen sulfide, sulfur dioxide gas, and flammable and explosive methane, they pose a huge safety and health hazard to the dredging workers. To address the freezing problem, currently most methods are to directly open holes in the garbage bin wall to pass hot air, but there is a problem that the hot air is drawn away as primary air before it comes into contact with the garbage, resulting in low thawing efficiency.

[0007] After searching, patent CN109051429A discloses a self-dredging garbage pool leachate grid plate system, and the dredging device is driven by a hydraulic cylinder. Compared with the traditional manual dredging grid plate, this patent changes the dredging method, improves the working environment, and improves the dredging effect and efficiency. However, the dredging power described in the patent only comes from the thrust transmitted to the dredging column by the hydraulic cylinder. For areas with serious blockage in the bin, the dredging force is insufficient, the dredging column is difficult to penetrate, and the effect is not good. In addition, the patent does not solve the problem of freezing and solidification of newly entered garbage in winter. Utility Model Content

[0008] In order to solve the above problems, the utility model provides a leachate grid plate dredging vehicle with strong dredging power.

[0009] The utility model adopts the following technical solutions:

[0010] A leachate grid plate dredging vehicle, comprising:

[0011] Vehicle body;

[0012] A power mechanism, arranged on the vehicle body;

[0013] Dredging agencies include:

[0014] A column plate is slidably disposed on the vehicle body and is driven to move by the power mechanism;

[0015] A first dredging column, provided on the column plate, driven by a power mechanism to dredge the leachate grid plate;

[0016] The dredging mechanism also includes:

[0017] Nitrogen cannon blowing system, including:

[0018] A second dredging column is provided on the column plate and driven by a power mechanism to dredge the leachate grid plate;

[0019] A nitrogen cannon is connected to the second dredging column to release compressed nitrogen to the second dredging column for blowing.

[0020] Furthermore, the nitrogen cannon blowing system further includes:

[0021] A buffer tube, the peripheral wall of which is fixed to and communicated with a plurality of second dredging columns;

[0022] An inner sleeve, one end of which is fixed to and communicated with the buffer tube;

[0023] An outer sleeve, one end of which is slidably mounted on the inner sleeve and the other end of which is connected to a nitrogen gun;

[0024] The sealing gasket is arranged between the inner sleeve and the outer sleeve.

[0025] Furthermore, the nitrogen cannon blowing system further includes:

[0026] An air inlet pipe, connected to the nitrogen cannon, and used to provide nitrogen to the nitrogen cannon;

[0027] A hot air pipe is connected to the nitrogen cannon and is used to provide hot air to the nitrogen cannon.

[0028] Furthermore, the air inlet pipe is a hard pipe, and when the column plate moves, the air inlet pipe keeps the nitrogen cannon and the outer sleeve fixed; the nitrogen cannon blowing system also includes:

[0029] A slide rail, one end of which is fixed to the column plate, and the slide rail is used to slidably support the nitrogen cannon;

[0030] A diagonal brace has one end fixed to the column plate and the other end fixed to the slide rail.

[0031] Furthermore, a wear-resistant plate is fixed at the contact position between the nitrogen gun barrel and the slide rail.

[0032] Furthermore, the outer sleeve is connected to the flange, the other side of the flange is connected to the electromagnetic pulse valve, and the other end of the pulse valve is connected to the nitrogen gun; a safety valve is installed on the upper part of the nitrogen gun barrel.

[0033] Furthermore, the vehicle body includes a frame, the frame is provided with a track, a slider is slidably provided on the track, and the slider is fixed to the column plate.

[0034] Furthermore, sealing plates and side plates are welded around the column plate to increase strength.

[0035] Furthermore, the number of the first dredging columns and the number of the second dredging columns are both multiple, and the multiple first dredging columns and the second dredging columns are arranged on the column plate at intervals. Beneficial Effects

[0036] Compared with the prior art, the beneficial effects of the utility model are:

[0037] The utility model provides a leachate grid plate dredging vehicle, which adopts nitrogen gun combined with dredging column for dredging, which not only improves the current situation of low efficiency and high risk of manual dredging of grid plates, but also increases the dredging power, improves the discharge rate of garbage leachate, and improves the dredging effect. At the same time, the dredging device also provides a new thawing method, which improves the efficiency of garbage thawing in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1-3 Three views of the leachate grid plate dredging vehicle according to an embodiment of the utility model.

[0039] Figure 4 It is a side view of the nitrogen cannon blowing system of the leachate grid plate dredging vehicle according to an embodiment of the utility model.

[0040] In the figure: 1-hydraulic cylinder, 2-intake pipe, 3-nitrogen gun, 4-electromagnetic pulse valve, 5-outer casing, 6-buffer pipe, 7-column plate, 8-second dredging column, 9-second dredging column plug, 10-safety valve, 11-wear-resistant plate, 12-angle steel, 13-gasket, 14-slider, 15-upper sealing plate, 16-lower sealing plate, 17-side sealing plate, 18-hanging ear, 19-nitrogen gun slide rail, 20-diagonal brace, 21-connecting flange, 22-sealing gasket, 23-end cover, 24-inner casing, 25-first dredging column, 26-first dredging column plug, 27-hot air pipe, 28-frame, 29-leachate grid plate. DETAILED DESCRIPTION

[0041] The utility model is further described below in conjunction with specific embodiments and drawings.

[0042] See also Figures 1 to 4 The embodiment of the utility model provides a leachate grid plate dredging vehicle with strong dredging ability.

[0043] The utility model adopts the following technical solutions:

[0044] A leachate grid plate dredging vehicle, comprising:

[0045] Vehicle body;

[0046] A power mechanism, arranged on the vehicle body;

[0047] Dredging agencies include:

[0048] A column plate is slidably disposed on the vehicle body and is driven to move by the power mechanism;

[0049] A first dredging column, provided on the column plate, driven by a power mechanism to dredge the leachate grid plate;

[0050] The dredging mechanism also includes:

[0051] Nitrogen cannon blowing system, including:

[0052] A second dredging column is provided on the column plate and driven by a power mechanism to dredge the leachate grid plate;

[0053] A nitrogen cannon is connected to the second dredging column to release compressed nitrogen to the second dredging column for blowing.

[0054] Furthermore, the nitrogen cannon blowing system further includes:

[0055] A buffer tube, the peripheral wall of which is fixed to and communicated with a plurality of second dredging columns;

[0056] An inner sleeve, one end of which is fixed to and communicated with the buffer tube;

[0057] An outer sleeve, one end of which is slidably mounted on the inner sleeve and the other end of which is connected to a nitrogen gun;

[0058] The sealing gasket is arranged between the inner sleeve and the outer sleeve.

[0059] Furthermore, the nitrogen cannon blowing system further includes:

[0060] An air inlet pipe, connected to the nitrogen cannon, and used to provide nitrogen to the nitrogen cannon;

[0061] A hot air pipe is connected to the nitrogen cannon and is used to provide hot air to the nitrogen cannon.

[0062] Furthermore, the air inlet pipe is a hard pipe, and when the column plate moves, the air inlet pipe keeps the nitrogen cannon and the outer sleeve fixed; the nitrogen cannon blowing system also includes:

[0063] A slide rail, one end of which is fixed to the column plate, and the slide rail is used to slidably support the nitrogen cannon;

[0064] A diagonal brace has one end fixed to the column plate and the other end fixed to the slide rail.

[0065] Furthermore, a wear-resistant plate is fixed at the contact position between the nitrogen gun barrel and the slide rail.

[0066] Furthermore, the outer sleeve is connected to the flange, the other side of the flange is connected to the electromagnetic pulse valve, and the other end of the pulse valve is connected to the nitrogen gun; a safety valve is installed on the upper part of the nitrogen gun barrel.

[0067] Furthermore, the vehicle body includes a frame, the frame is provided with a track, a slider is slidably provided on the track, and the slider is fixed to the column plate.

[0068] Furthermore, sealing plates and side plates are welded around the column plate to increase strength.

[0069] Furthermore, the number of the first dredging columns and the number of the second dredging columns are both multiple, and the multiple first dredging columns and the second dredging columns are arranged on the column plate at intervals.

[0070] In a specific embodiment, the vehicle body of the leachate grid plate dredging vehicle includes a frame 28. The power mechanism is a hydraulic cylinder 1.

[0071] The hydraulic cylinder 1 is connected to the hanging ear 18 through a pin shaft, and the hanging ear 18 is welded to the column plate 7. The column plate 7 is welded with sealing plates 15, 16 and side plates 17 around to increase the strength.

[0072] The frame 28 is provided with upper and lower tracks. The upper and lower tracks are respectively provided with sliders 14. The column plate 7 moves along the upper and lower tracks of the frame 28 through the sliders 14. Specifically, the sliders 14 are bolted to the gaskets 13 and the angle steels 12, and the angle steels 12 are welded to the column plate 7.

[0073] The first dredging column and the second dredging column have substantially the same structure. Both dredging columns have holes in their centers and are arranged crosswise on the column plate 7.

[0074] The port of the second dredging column 8 is inserted into the corresponding plug 9, and the central opening size of the two is the same. The first dredging column 25 is sealed by the corresponding plug 26, and the plug 26 is not opened. The second dredging column 8 passes through the hole groove of the column plate 7 and is welded to the wall surface of the buffer tube 6. The first dredging column 25 is fixed by bolts after passing through the hole groove of the column plate 7. The buffer tube 6 is opened in the horizontal direction on the side close to the column plate 7, and the number and positioning of the holes correspond to the second dredging column 8. A hole is opened on the other side of the buffer tube 6, and the inner sleeve 24 is welded outside the hole. The inner sleeve 24 and the outer sleeve 5 are separated by a sealing gasket 22, and the outer cover plate 23 is clamped to isolate the inner sleeve 24 from the outside air. The outer sleeve 5 is connected to the flange 21, and the other side of the flange 21 is connected to the electromagnetic pulse valve 4. The other end of the pulse valve 4 is connected to the nitrogen gun 3, and the nitrogen gun is inhaled through the intake pipe 2. The intake pipe is a hard steel pipe. A safety valve 10 is installed on the upper part of the nitrogen gun barrel, and a hot air pipe 27 is installed at the side opening. A circle of wear-resistant plate 11 is welded at the contact position between the barrel and the nitrogen gun slide rail 19. One side of the diagonal brace 20 is welded to the column plate 7, and the other side is connected to the slide rail 19.

[0075] When starting to work, the column plate 7 moves toward the leachate grid plate 29 along the upper and lower tracks of the frame 28 under the push of the hydraulic cylinder 1. At the same time, the buffer tube 6, the inner sleeve 24, the nitrogen gun slide rail 19 and the diagonal brace 20 also move accordingly. The air inlet pipe 2 is a hard steel pipe. In addition to inflating the nitrogen gun 3, it can also exert a reaction force on the nitrogen gun 3 when the trolley is moving, so as to keep the nitrogen gun 3, the pulse valve 4, the connecting flange 21 and the outer sleeve 5 fixed. The wear-resistant plate 11 reduces the wear of the slide rail 19 on the nitrogen gun barrel. As the trolley moves, the two types of dredging columns pass through the openings of the leachate grid plate 29 and are inserted into the garbage bin to dredge the accumulated garbage. After the column plate 7 reaches the set position, the pulse valve 4 is opened to start nitrogen cannon blowing. The compressed nitrogen in the barrel is instantly released at the outlet to generate a high-intensity airflow, which passes through the inner sleeve, buffer tube and each connected second dredging column 8 to impact the accumulated garbage. Compared with dredging with a single dredging column, it increases the dredging power, improves the leachate discharge rate, and improves the dredging effect. The nitrogen cannon is an inert gas, which avoids the risk of fire caused by friction during the dredging process.

[0076] After the frozen garbage enters the garbage bin in winter, under the premise of ensuring the incineration effect, a proper amount of heated primary air is extracted from the outlet of the air preheater, and passed into the cylinder of the nitrogen cannon 3 through the hot air pipe 27. After the column plate 2 of the dredging trolley reaches the leachate grid plate 29, and all the dredging columns are inserted into the garbage, the pulse valve is opened, and the hot air rushes into the bin along the inner sleeve 24, the buffer pipe 6 and the connected second dredging columns, and penetrates into the gaps in the garbage. The hot air and the garbage undergo intense convection heat exchange, which thaws the garbage. Compared with the traditional thawing method of only opening holes in the wall to pass hot air without extending into the garbage, this method has high heat exchange efficiency and good thawing effect.

[0077] The examples described in the present invention are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field shall fall within the protection scope of the present invention.

Claims

1. A leachate grid plate dredging vehicle, comprising: Vehicle body; A power mechanism, arranged on the vehicle body; Dredging agencies include: A column plate is slidably disposed on the vehicle body and is driven to move by the power mechanism; A first dredging column, provided on the column plate, driven by a power mechanism to dredge the leachate grid plate; Characterized in that the dredging mechanism also includes: Nitrogen cannon blowing system, including: A second dredging column is provided on the column plate and driven by a power mechanism to dredge the leachate grid plate; A nitrogen cannon is connected to the second dredging column to release compressed nitrogen to the second dredging column for blowing.

2. The leachate grid plate dredging vehicle according to claim 1, characterized in that: The nitrogen cannon blowing system further comprises: A buffer tube, the peripheral wall of which is fixed to and communicated with a plurality of second dredging columns; An inner sleeve, one end of which is fixed to and communicated with the buffer tube; An outer sleeve, one end of which is slidably mounted on the inner sleeve and the other end of which is connected to a nitrogen gun; The sealing gasket is arranged between the inner sleeve and the outer sleeve.

3. The leachate grid plate dredging vehicle according to claim 2, characterized in that: The nitrogen cannon blowing system further comprises: An air inlet pipe, connected to the nitrogen cannon, and used to provide nitrogen to the nitrogen cannon; A hot air pipe is connected to the nitrogen cannon and is used to provide hot air to the nitrogen cannon.

4. The leachate grid plate dredging vehicle according to claim 3, characterized in that: The air inlet pipe is a hard pipe. When the column plate moves, the air inlet pipe keeps the nitrogen cannon and the outer sleeve fixed; the nitrogen cannon blowing system also includes: A slide rail, one end of which is fixed to the column plate, and the slide rail is used to slidably support the nitrogen cannon; A diagonal brace has one end fixed to the column plate and the other end fixed to the slide rail.

5. The leachate grid plate dredging vehicle according to claim 3, characterized in that: A wear-resistant plate is fixed at the contact position between the nitrogen gun barrel and the slide rail.

6. The leachate grid plate dredging vehicle according to claim 3, characterized in that: The outer sleeve is connected to the flange, the other side of the flange is connected to the electromagnetic pulse valve, and the other end of the pulse valve is connected to the nitrogen gun; a safety valve is installed on the upper part of the nitrogen gun barrel.

7. The leachate grid plate dredging vehicle according to claim 1, characterized in that: The vehicle body comprises a frame, the frame is provided with a track, a slider is slidably provided on the track, and the slider is fixed to the column plate.

8. The leachate grid plate dredging vehicle according to claim 1, characterized in that: The column plate is welded with sealing plates and side plates around to increase the strength.

9. The leachate grid plate dredging vehicle according to claim 1, characterized in that: The number of the first dredging columns and the number of the second dredging columns are both multiple, and the multiple first dredging columns and the second dredging columns are arranged on the column plate at intervals.

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