Full-coverage negative pressure sealing cover for slag loading vehicle

Abstract

The utility model relates to the field of slag loading trucks, and particularly discloses a full-coverage negative pressure sealing cover for a slag loading truck, the full-coverage negative pressure sealing cover comprises a sealing cover mechanism and a tail end feeding mechanism, the sealing cover mechanism comprises a supporting framework and an outer conical pipe, the outer conical pipe is installed on the supporting framework, and the large-diameter end of the outer conical pipe is used for covering a truck hopper of the slag loading truck; the sealing ring is in sealing contact with a hopper opening of the hopper; the tail end feeding mechanism comprises a connecting ring, a tail end telescopic feeding pipe and an outer layer air duct. The connecting ring is installed at the small-diameter end of an outer conical pipe. The discharging end of the tail end telescopic feeding pipe is connected with an inner hole of the connecting ring; the outer-layer air duct sleeves the tail-end telescopic feeding pipe, and one end of the outer-layer air duct is connected with the connecting ring; a dust collection hole located between the tail end telescopic feeding pipe and the outer-layer air duct is formed in the connecting ring and communicates with the outer conical pipe. When dry slag blocks are conveyed into the car hopper, generated dust is not prone to being diffused into air under the action of the sealing cover mechanism, and the environmental protection performance is improved.

Description

Technical Field

[0001] This application relates to the field of slag loading vehicles, and particularly to a full-coverage negative pressure sealing cover for a slag loading vehicle. Background Art

[0002] Currently, in thermal power generation, the slag blocks formed after the slag produced by the boiler condenses are called dry slag blocks, which are by-products of boiler production. The application of dry slag blocks depends on specific conditions. Recycling dry slag blocks can achieve certain economic benefits. During the process of recycling dry slag blocks, a slag loading vehicle is needed to transport the dry slag blocks to a designated location for treatment.

[0003] In the related art, after the dry slag blocks are formed, they will first be piled up in the slag bin. When the dry slag blocks are needed, the slag loading vehicle is driven below the slag bin, and the dry slag blocks in the slag bin fall into the hopper of the slag loading vehicle under the action of gravity. Then, the slag loading vehicle transports a hopper of dry slag blocks to the designated location.

[0004] For the above-mentioned related art, there are the following defects: when the dry slag blocks in the slag bin fall into the hopper of the slag loading vehicle under the action of gravity, a large amount of dust will be generated, polluting the environment. Summary of the Invention

[0005] In order to prevent dust from easily spreading into the air during the process of the slag loading vehicle loading dry slag blocks, this application provides a full-coverage negative pressure sealing cover for a slag loading vehicle.

[0006] A full-coverage negative pressure sealing cover for a slag loading vehicle provided by this application adopts the following technical solution:

[0007] A full-coverage negative pressure sealing cover for a slag loading vehicle includes a sealing cover mechanism and a terminal feeding mechanism. The sealing cover mechanism includes a support skeleton and an outer conical tube. The outer conical tube is installed on the support skeleton. The larger diameter end of the outer conical tube is used to cover the hopper of the slag loading vehicle and is used for sealing contact with the hopper opening of the hopper.

[0008] The terminal feeding mechanism includes a connecting ring, a terminal telescopic feeding tube, and an outer layer air duct. The connecting ring is installed at the smaller diameter end of the outer conical tube;

[0009] The discharging end of the terminal telescopic feeding tube is connected to the inner hole of the connecting ring;

[0010] The outer layer air duct is sleeved on the terminal telescopic feeding tube and one end is connected to the connecting ring;

[0011] The connecting ring is provided with a dust suction hole located between the terminal telescopic feeding tube and the outer layer air duct, and the dust suction hole is communicated with the outer conical tube.

[0012] By adopting the above technical solution, the sealing cover mechanism is lifted above the carriage by means of the lifting device. By lifting the sealing cover mechanism, the larger-diameter end of the outer conical tube covers the carriage of the slag loading vehicle and is in sealing contact with the mouth of the carriage, so that the larger-diameter end of the outer conical tube can be relatively sealed with the mouth of the carriage. The air outlet end of the outer air duct is connected to the dust collection device, and the material is injected into the carriage through the end telescopic feeding pipe. When dust is generated during the process of injecting the material, the dust collection device sucks away the dusty air between the carriage and the outer conical tube through the dust collection channel composed of the dust collection holes and the outer air duct. In this application, the sealing cover mechanism covers the carriage of the slag loading vehicle, so that when dry slag blocks are transported into the carriage, the generated dust is not easily diffused into the air under the action of the sealing cover mechanism, improving the environmental protection performance.

[0013] Optionally, the sealing cover mechanism further includes a left sealing plate, a right sealing plate, a front sealing plate and a rear sealing assembly. The left sealing plate, the right sealing plate, the front sealing plate and the rear sealing assembly are all arranged at the larger-diameter end of the outer conical tube and are all connected to the outer conical tube;

[0014] In the width direction of the carriage, the left sealing plate and the right sealing plate are respectively horizontally installed at both ends of the outer conical tube and are both arranged along the length direction of the carriage. And a horizontally arranged left sealing pad is provided below the left sealing plate, and a horizontally arranged right sealing pad is provided below the right sealing plate;

[0015] In the length direction of the carriage, the front sealing plate and the rear sealing assembly are respectively installed at both ends of the outer conical tube and are both arranged along the width direction of the carriage;

[0016] A hinge is connected between the front sealing plate and the outer conical tube. A front flap cloth is provided on the front sealing plate. The front flap cloth covers the front sealing plate and extends beyond the edge of the front sealing plate;

[0017] The rear sealing assembly includes a rear flap cloth. The rear flap cloth is arranged along the width direction of the carriage and is connected to the outer conical tube.

[0018] By adopting the above technical solution, when the sealing cover mechanism covers the carriage, the left sealing gasket presses on the left end of the carriage, and the right sealing gasket presses on the right end of the carriage, realizing the sealing between the outer conical pipe and the left and right ends of the carriage for the first time. The front sealing plate is placed on the front end of the carriage, and at the same time, the front fastening cloth is placed on the front end of the carriage, covering the front end of the carriage, realizing the relative sealing between the outer conical pipe and the front end of the carriage for the first time. The rear fastening cloth is placed on the rear end of the carriage, realizing the relative sealing between the outer conical pipe and the rear end of the carriage for the first time. When loading dry slag blocks into the carriage, multiple slag piles will be generated in the length direction of the carriage. When the first slag pile is generated at the front end of the carriage, the sealing cover mechanism is relatively sealed with the four sides of the carriage. When preparing to generate the second slag pile, the sealing cover mechanism first rises away from the first slag pile by means of the lifting device, the slag loading vehicle moves forward by the position of one slag pile, and then the sealing cover mechanism descends and contacts the carriage by means of the lifting device. At this time, the front sealing plate and the front fastening cloth are placed on the first slag pile, making the front fastening cloth relatively sealed with the first slag pile and the carriage at the first slag pile, realizing the relative sealing between the outer conical pipe and the front end of the carriage for the second time. The left sealing gasket presses on the left end of the carriage, and the right sealing gasket presses on the right end of the carriage, realizing the sealing between the outer conical pipe and the left and right ends of the carriage for the second time. When the suction device sucks air, the rear fastening cloth fits with the rear end of the carriage under the action of negative pressure, realizing the relative sealing between the outer conical pipe and the rear end of the carriage for the second time. After the second relative sealing between the outer conical pipe and the carriage, dry slag blocks are injected into the carriage through the end telescopic feeding pipe to form the second slag pile. Repeat the steps of the second relative sealing between the outer conical pipe and the carriage, and form the first slag pile, the second slag pile, the third slag pile, the fourth slag pile, etc. from front to back in the carriage until the carriage is filled with dry slag blocks, then the sealing cover mechanism rises away from the carriage, and the slag loading vehicle drives to the designated position.

[0019] Optionally, a left elastic member is connected between the left sealing gasket and the left sealing plate;

[0020] A right elastic member is connected between the right sealing gasket and the right sealing plate.

[0021] By adopting the above technical solution, the left elastic member and the right elastic member respectively improve the fault tolerance performance of the left sealing gasket and the right sealing gasket. When the sealing cover mechanism descends, as long as the left elastic member and the right elastic member respectively contact the left and right sides of the carriage and are within the shortening intervals of the left elastic member and the right elastic member, the left elastic member and the right elastic member can effectively press on the carriage, and there is no need for the sealing cover mechanism to descend with high precision.

[0022] Optionally, the sealing cover mechanism further includes a fireproof cloth. The front fastening cloth is arranged above the front sealing plate, and the fireproof cloth covers the side of the front sealing plate away from the front fastening cloth.

[0023] By adopting the above technical solution, the dry slag blocks generated by the boiler of thermal power generation have a relatively high temperature. When the front sealing plate contacts the slag pile, the fireproof cloth can prevent the high temperature from damaging the front lap cloth.

[0024] Optionally, the rear sealing assembly further includes an intermediate sealing gasket and a plurality of partition plates. The intermediate sealing gasket is horizontally arranged between the end feeding mechanism and the rear lap cloth and is connected to the outer conical tube.

[0025] The intermediate sealing gasket is coplanar with the left sealing gasket and the right sealing gasket, and one end contacts the left sealing gasket and the other end contacts the right sealing gasket.

[0026] The partition plates are arranged between the intermediate sealing gasket and the outer conical tube, are connected to the inner wall of the outer conical tube, and also contact the intermediate sealing gasket.

[0027] In the length direction of the carriage, the plurality of partition plates are distributed at intervals.

[0028] By adopting the above technical solution, when the slag loading vehicle needs to generate each slag pile, it needs to first raise the sealing cover mechanism, move forward by the position of one slag pile, and then lower the sealing cover mechanism to seal with the carriage. When generating a plurality of slag piles in sequence from front to back in the carriage, the distance between the rear lap cloth and the rear end of the carriage will become larger and larger, resulting in a reduction in the relative sealing effect between the rear lap cloth and the rear end of the carriage. After the carriage moves forward relative to the sealing cover mechanism, the intermediate sealing gasket can just press the entire rear end of the carriage, ensuring that an effective relative seal can continue to be carried out between the rear end of the carriage and the rear end of the sealing cover mechanism.

[0029] Optionally, the rear sealing assembly further includes a rear sealing plate. The rear sealing plate is horizontally installed at the larger diameter end of the outer conical tube, is located between the left sealing plate and the right sealing plate, and is also coplanar with the left sealing plate and the right sealing plate.

[0030] A rear sealing gasket is arranged below the rear sealing plate, and the rear sealing gasket is coplanar with the left sealing gasket and the right sealing gasket.

[0031] A rear elastic member is connected between the rear sealing gasket and the rear sealing plate.

[0032] The rear lap cloth is installed at one end of the rear sealing plate away from the outer conical tube.

[0033] By adopting the above technical solution, the rear sealing plate extends the horizontal length of the rear end of the outer conical tube, enabling the outer conical tube to press against the entire rear end of the carriage through the rear sealing plate. When multiple slag piles are successively generated in the carriage from front to back, each slag pile is generated inside the outer conical tube, and every time the rear end of the carriage and the sealing cover mechanism are resealed, the rear sealing plate can press behind the outer conical tube to ensure effective sealing between the outer conical tube and the rear end of the carriage.

[0034] Optionally, the end feeding mechanism further includes a flow equalizing cone, which includes an inner conical tube and a plurality of flow dividing rods. The inner conical tube is arranged inside the outer conical tube, and the smaller diameter end of the inner conical tube is connected to the discharge end of the end telescopic feeding tube.

[0035] The flow dividing rods are connected to the outer side wall of the inner conical tube, and the plurality of flow dividing rods are circumferentially distributed along the inner conical tube.

[0036] By adopting the above technical solution, the dry slag blocks sequentially pass through the end telescopic feeding tube and the inner conical tube and are discharged into the carriage. The dust suction device sucks away the dust-containing air inside the outer conical tube through the dust suction channel composed of the dust suction holes, the outer layer air cylinder, and the connecting hose. The inner conical tube can guide the dust-containing air on the side of the discharge port of the end telescopic feeding tube into the dust suction holes to ensure that all the dust-containing air inside the entire outer conical tube can be effectively sucked away.

[0037] Optionally, the end feeding mechanism further includes a rotary vane level switch, which is installed inside the outer conical tube.

[0038] By adopting the above technical solution, during the formation of the slag pile inside the outer conical tube, the height of the slag pile will gradually increase until the top of the slag pile touches the rotary vane level switch. At this time, according to the detection data of the rotary vane level switch, the staff can close the slag bin and stop feeding.

[0039] In summary, the present application includes at least one of the following beneficial technical effects:

[0040] 1. In the present application, the carriage of the slag loading vehicle is covered by the sealing cover mechanism, so that when dry slag blocks are transported into the carriage, the generated dust is not easily diffused into the air under the action of the sealing cover mechanism, improving the environmental protection performance.

[0041] 2. In the present application, the inner conical tube can guide the dust-containing air on the side of the discharge port of the end telescopic feeding tube into the dust suction holes to ensure that all the dust-containing air inside the entire outer conical tube can be effectively sucked away.

[0042] 3. During the formation process of the slag pile inside the outer conical tube in this application, the height of the slag pile will gradually increase until the top of the slag pile touches the rotary vane level switch. At this time, based on the detection data of the rotary vane level switch, the staff can close the slag bin and stop the feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0044] Figure 1 is the structural schematic diagram of Embodiment 1;

[0045] Figure 2 is the sectional structural schematic diagram in the length direction of Embodiment 1;

[0046] Figure 3 is the sectional structural schematic diagram in the width direction of Embodiment 1

[0047] Figure 4 is the structural schematic diagram of Embodiment 2;

[0048] Figure 5 is the sectional structural schematic diagram in the length direction of Embodiment 2;

[0049] Figure 6 is the sectional structural schematic diagram in the width direction of Embodiment 2.

[0050] REFERENCE MARKS:

[0051] 1. Sealing cover mechanism; 10. Support skeleton; 11. Outer conical tube; 12. Left sealing plate; 121. Left elastic member; 122. Left sealing gasket; 13. Right sealing plate; 131. Right elastic member plate; 132. Right sealing gasket; 14. Front sealing plate; 141. Hinge; 142. Fireproof cloth; 140. Front fastening cloth; 15. Rear sealing assembly; 150. Rear fastening cloth; 151. Intermediate sealing gasket; 1511. Partition plate; 1512. Intermediate support; 1513. Intermediate guide rail; 152. Rear sealing plate; 1521. Rear elastic member; 1522. Rear sealing gasket; 1523. Connection bracket; 1524. Rear guide rail; 1525. Reinforcement bracket; 2. End feeding mechanism; 21. Connection ring; 2101. Dust suction hole; 22. End telescopic feeding pipe; 23. Flow equalizing cone; 231. Inner conical tube; 232. Shunt rod; 24. Rotary vane level switch; 20. Outer air duct. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] The following combines the attachedFigure 1-6 Further detailed description of this application is provided as follows.

[0053] An embodiment of this application discloses a full-coverage negative-pressure sealing hood for a slag loading vehicle.

[0054] Embodiment 1

[0055] Referring to Figure 1 and Figure 2 and Figure 3 , a fully sealed negative-pressure dust-free dry slag loading system includes a sealing hood mechanism 1 and a terminal feeding mechanism 2. The sealing hood mechanism 1 includes a support framework 10 and an outer conical tube 11. The outer conical tube 11 is installed on the support framework 10. When in use, the sealing hood mechanism 1 is erected above the hopper and can be lifted above the hopper through a lifting device. The larger-diameter end of the outer conical tube 11 is used to cover the hopper of the slag loading vehicle and is used for making a sealed contact with the hopper opening. In the implementation manner of this application, the sealing hood mechanism 1 is lifted above the hopper through the lifting device. By lifting the sealing hood mechanism 1, the larger-diameter end of the outer conical tube 11 covers the hopper of the slag loading vehicle and makes a sealed contact with the hopper opening, so that the larger-diameter end of the outer conical tube 11 can be relatively sealed with the hopper opening.

[0056] Referring to Figure 1 , the terminal feeding mechanism 2 includes a connecting ring 21, a terminal telescopic feeding pipe 22, and an outer air duct 20. The connecting ring 21 is installed at the smaller-diameter end of the outer conical tube 11. The discharging end of the terminal telescopic feeding pipe 22 is connected to the inner hole of the connecting ring 21. The outer air duct 20 is sleeved on the terminal telescopic feeding pipe 22 and is connected to the connecting ring 21 at one end. A dust suction hole 2101 located between the terminal telescopic feeding pipe 22 and the outer air duct 20 is provided on the connecting ring 21, and the dust suction hole 2101 is communicated with the outer conical tube 11. In the implementation manner of this application, the air outlet end of the outer air duct 20 is connected to a dust suction device. When injecting materials into the hopper through the terminal telescopic feeding pipe 22 and dust is generated during the injection process, the dust suction device sucks away the dust-containing air between the hopper and the outer conical tube 11 through the dust suction channel composed of the dust suction hole 2101 and the outer air duct 20.

[0057] Referring to Figure 1 and Figure 2 and Figure 3, the sealing cover mechanism 1 further includes a left sealing plate 12, a right sealing plate 13, a front sealing plate 14 and a rear sealing assembly 15. The left sealing plate 12, the right sealing plate 13, the front sealing plate 14 and the rear sealing assembly 15 are all arranged at the end with a larger diameter of the outer conical tube 11 and are all connected to the outer conical tube 11. In the width direction of the carriage, the left sealing plate 12 and the right sealing plate 13 are respectively horizontally installed at both ends of the outer conical tube 11 and are both arranged along the length direction of the carriage. And a horizontally arranged left sealing gasket 122 is provided below the left sealing plate 12, and a horizontally arranged right sealing gasket 132 is provided below the right sealing plate 13. In the length direction of the carriage, the front sealing plate 14 and the rear sealing assembly 15 are respectively installed at both ends of the outer conical tube 11 and are both arranged along the width direction of the carriage. A hinge 141 is connected between the front sealing plate 14 and the outer conical tube 11. A front fastening cloth 140 is provided on the front sealing plate 14. The front fastening cloth 140 covers the front sealing plate 14 and extends beyond the edge of the front sealing plate 14. The rear sealing assembly 15 includes a rear fastening cloth 150. The rear fastening cloth 150 is arranged along the width direction of the carriage and is connected to the outer conical tube 11.

[0058] Refer to Figure 1 , Figure 2 and Figure 3, in the embodiment of the present application, when the sealing cover mechanism 1 covers the carriage, the left sealing gasket 122 presses against the left end of the carriage, and the right sealing gasket 132 presses against the right end of the carriage, achieving the sealing between the outer conical tube 11 and the left and right ends of the carriage for the first time. The front sealing plate 14 is placed on the front end of the carriage, and at the same time, the front side latching cloth 140 is placed on the front end of the carriage, covering the front end of the carriage, and achieving the relative sealing between the outer conical tube 11 and the front end of the carriage for the first time. The rear side latching cloth 150 is placed on the rear end of the carriage, achieving the relative sealing between the outer conical tube 11 and the rear end of the carriage for the first time. When the dust suction device sucks away the dust-containing air inside the outer conical tube 11, under the action of the suction force, the left sealing gasket 122, the right sealing gasket 132, the front side latching cloth 140, and the rear side latching cloth 150 can further fit with the carriage, further improving the sealing effect of the sealing cover mechanism 1 and making it difficult for dust to spill out of the carriage. When loading dry slag blocks into the carriage, multiple slag piles will be generated in the length direction of the carriage. When the first slag pile is generated at the front end of the carriage, the sealing cover mechanism 1 is relatively sealed with the four sides of the carriage. When preparing to generate the second slag pile, the sealing cover mechanism 1 first rises away from the first slag pile, the slag loading vehicle moves forward by the position of one slag pile, and then the sealing cover mechanism 1 descends to contact the carriage again. At this time, the front sealing plate 14 and the front side latching cloth 140 are placed on the first slag pile, making the front side latching cloth 140 relatively sealed with the first slag pile and the carriage at the position of the first slag pile, and achieving the relative sealing between the outer conical tube 11 and the front end of the carriage for the second time. The left sealing gasket 122 presses against the left end of the carriage, the right sealing gasket 132 presses against the right end of the carriage, achieving the sealing between the outer conical tube 11 and the left and right ends of the carriage for the second time. When the dust suction device sucks air, under the action of negative pressure, the rear side latching cloth 150 fits with the rear end of the carriage, achieving the relative sealing between the outer conical tube 11 and the rear end of the carriage for the second time. After the second relative sealing between the outer conical tube 11 and the carriage, the dry slag blocks are injected into the carriage through the end telescopic feeding pipe 22 to form the second slag pile. Repeat the above steps of the second relative sealing between the outer conical tube 11 and the carriage, and form the first slag pile, the second slag pile, the third slag pile, the fourth slag pile, etc. from front to back in the carriage until the carriage is filled with dry slag blocks, and then the sealing cover mechanism 1 rises away from the carriage, and the slag loading vehicle drives to the designated position.

[0059] Refer to Figure 1 , Figure 2 and Figure 3, a left elastic member 121 is connected between the left gasket 122 and the left sealing plate 12. A right elastic member is connected between the right gasket 132 and the right sealing plate 13. In the embodiment of the present application, the left elastic member 121 and the right elastic member respectively improve the fault tolerance performance of the left gasket 122 and the right gasket 132. When the sealing cover mechanism 1 descends, as long as the left elastic member 121 and the right elastic member respectively contact the left and right sides of the truck bed and are in the shortening intervals of the left elastic member 121 and the right elastic member, the left elastic member 121 and the right elastic member can effectively press on the truck bed, and there is no need for the sealing cover mechanism 1 to descend with high precision.

[0060] Refer to Figure 1 , Figure 2 and Figure 3 , the sealing cover mechanism 1 further includes a fireproof cloth 142. The front side latching cloth 140 is arranged above the front side sealing plate 14, and the fireproof cloth 142 covers the side of the front side sealing plate 14 away from the front side latching cloth 140. In the embodiment of the present application, the dry slag blocks generated by the boiler of thermal power generation have a relatively high temperature. When the front side sealing plate 14 contacts the slag pile, the fireproof cloth 142 can prevent the high temperature from damaging the front side latching cloth 140.

[0061] Refer to Figure 1 , Figure 2 and Figure 3 , the rear sealing assembly 15 further includes an intermediate gasket 151 and a plurality of partition plates 1511. The intermediate gasket 151 is horizontally arranged between the end feeding mechanism 2 and the rear side latching cloth 150 and is connected to the outer conical tube 11. The intermediate gasket 151 is coplanar with the left gasket 122 and the right gasket 132, and one end contacts the left gasket 122 and the other end contacts the right gasket 132. The partition plates 1511 are arranged between the intermediate gasket 151 and the outer conical tube 11, are connected to the inner wall of the outer conical tube 11, and also contact the intermediate gasket 151. In the length direction of the truck bed, the plurality of partition plates 1511 are distributed at intervals.

[0062] Refer to Figure 1 , Figure 2 and Figure 3, in the embodiment of the present application, when the mucking truck generates each slag heap, it needs to first raise the sealing cover mechanism 1, move forward by the position of one slag heap, and then lower the sealing cover mechanism 1 to seal with the bucket. When multiple slag heaps are generated in sequence from the front to the back in the bucket, the distance between the rear flap cloth 150 and the rear end of the bucket will become larger and larger, resulting in a reduction in the relative sealing effect between the rear flap cloth 150 and the rear end of the bucket. After the bucket moves forward relative to the sealing cover mechanism 1, the middle sealing pad 151 can just press the entire rear end of the bucket, ensuring that effective relative sealing can continue between the rear end of the bucket and the rear end of the sealing cover mechanism 1. In other embodiments, an intermediate bracket 1512 is provided between the middle sealing pad 151 and the partition plate 1511. An intermediate guide rail 1513 arranged along the length direction of the bucket is connected between the intermediate bracket 1512 and the support skeleton 10, and the intermediate bracket 1512 is slidably connected to the support skeleton 10 through the intermediate guide rail 1513. The middle sealing pad 151 is connected to the support skeleton 10. When sealing the rear end of the bucket, the intermediate bracket 1512 carries the middle sealing pad 151 to slide adaptively in the length direction of the bucket, so that the middle sealing pad 151 can just press on the rear end of the bucket, enabling the sealing cover mechanism 1 to adapt to buckets of various sizes.

[0063] Referring to Figure 1 , Figure 2 and Figure 3 , the end feeding mechanism 2 further includes a flow equalizing cone 23. The flow equalizing cone 23 includes an inner conical tube 231 and a plurality of flow dividing rods 232. The inner conical tube 231 is arranged inside the outer conical tube 11, and the smaller diameter end of the inner conical tube 231 is connected to the discharge end of the end telescopic feeding tube 22. The flow dividing rods 232 are connected to the outer side wall of the inner conical tube 231, and a plurality of flow dividing rods 232 are circumferentially distributed along the inner conical tube 231.

[0064] Referring to Figure 1 , Figure 2 and Figure 3 , in the embodiment of the present application, the dry slag blocks are discharged into the bucket through the end telescopic feeding tube 22 and the inner conical tube 231 in sequence. The dust collection device sucks away the dust-containing air in the outer conical tube 11 through the dust collection channel composed of the dust collection holes 2101, the outer layer air duct 20 and the connecting hose. The inner conical tube 231 can introduce the dust-containing air around the discharge port side of the end telescopic feeding tube 22 into the dust collection holes 2101, ensuring that all the dust-containing air in the entire outer conical tube 11 can be effectively sucked away.

[0065] Referring to Figure 1 , Figure 2 and Figure 3, the end feeding mechanism 2 further includes a rotary vane level switch 24, and the rotary vane level switch 24 is installed inside the outer conical tube 11. In the embodiment of the present application, during the formation of the slag pile inside the outer conical tube 11, the height of the slag pile will gradually increase until the top of the slag pile touches the rotary vane level switch 24. At this time, according to the detection data of the rotary vane level switch 24, the staff can close the slag bin and stop the feeding.

[0066] The implementation principle of a fully sealed negative pressure dust-free dry slag loading system in an embodiment of the present application is as follows:

[0067] When the sealing cover mechanism 1 covers the hopper, the left sealing gasket 122 presses on the left end of the hopper, and the right sealing gasket 132 presses on the right end of the hopper, realizing the sealing between the outer conical tube 11 and the left and right ends of the hopper. The front sealing plate 14 is placed on the front end of the hopper, and at the same time, the front flap cloth 140 is placed on the front end of the hopper, covering the front end of the hopper, realizing the relative sealing between the outer conical tube 11 and the front end of the hopper. The rear flap cloth 150 is placed on the rear end of the hopper, and the middle sealing gasket 151 presses on the hopper opening at the rear end of the hopper, realizing the relative sealing between the outer conical tube 11 and the rear end of the hopper. The air outlet end of the outer layer air duct 20 is connected to the dust collection device, and materials are injected into the hopper through the end telescopic feeding pipe 22. When dust is generated during the injection of materials, the dust collection device sucks away the dust-containing air between the hopper and the outer conical tube 11 through the dust collection channel composed of the dust collection holes 2101 and the outer layer air duct 20.

[0068] Embodiment 2

[0069] Referring to Figure 4 、 Figure 5 and Figure 6 , the difference between Embodiment 2 and Embodiment 1 is that the rear sealing assembly 15 further includes a rear sealing plate 152. The rear sealing plate 152 is horizontally installed at the larger diameter end of the outer conical tube 11, and is located between the left sealing plate 12 and the right sealing plate 13, and is also coplanar with the left sealing plate 12 and the right sealing plate 13. A rear sealing gasket 1522 is provided below the rear sealing plate 152, and the rear sealing gasket 1522 is coplanar with the left sealing gasket 122 and the right sealing gasket 132. A rear elastic member 1521 is connected between the rear sealing gasket 1522 and the rear sealing plate 152. The rear flap cloth 150 is installed at the end of the rear sealing plate 152 away from the outer conical tube 11.

[0070] Referring to Figure 4 、 Figure 5 and Figure 6, in the embodiment of the present application, a reinforcement bracket 1525 is connected between the upper end of the rear sealing plate 152 and the outer conical tube 11 to reinforce the rear sealing plate 152. The rear sealing plate 152 extends the horizontal length of the rear end of the outer conical tube 11, enabling the outer conical tube 11 to press against the entire rear end of the truck bed through the rear sealing plate 152. When multiple slag piles are generated in sequence from front to back in the truck bed, each slag pile is generated inside the outer conical tube 11, and each time the rear end of the truck bed is resealed with the sealing cover mechanism 1, the rear sealing plate 152 can press behind the outer conical tube 11 to ensure effective sealing between the outer conical tube 11 and the rear end of the truck bed. In other embodiments, the opposite ends of the left sealing plate 12 and the right sealing plate 13 are both inclined downward, so that after the left sealing gasket 122 and the right sealing gasket 132 are worn, the left sealing gasket 122 and the right sealing gasket 132 can still effectively make sealing contact with the truck bed. A connecting bracket 1523 is provided between the rear flap cloth 150 and the rear sealing plate 152. The rear flap cloth 150 is connected to the connecting bracket 1523. A rear guide rail 1524 is connected between the connecting bracket 1523 and the rear sealing plate 152 along the length direction of the truck bed. The connecting bracket 1523 is slidably connected to the rear sealing plate 152 through the rear guide rail 1524. When the truck bed moves forward relative to the sealing cover mechanism 1 and the distance between the rear flap cloth 150 and the truck bed is relatively large, the connecting bracket 1523 can be moved towards the truck bed, so that the rear flap cloth 150 can still contact the rear end of the truck bed.

[0071] The implementation principle of the fully sealed negative pressure dust-free dry slag loading system in the second embodiment of the present application is as follows:

[0072] When the sealing cover mechanism 1 covers the truck bed, the left sealing gasket 122 presses against the left end of the truck bed, and the right sealing gasket 132 presses against the right end of the truck bed to achieve sealing between the outer conical tube 11 and the left and right ends of the truck bed. The front sealing plate 14 is placed on the front end of the truck bed, and at the same time, the front flap cloth 140 is placed on the front end of the truck bed to cover the front end of the truck bed, achieving relative sealing between the outer conical tube 11 and the front end of the truck bed. The rear sealing plate 152 extends the horizontal length of the rear end of the outer conical tube 11, enabling the outer conical tube 11 to press against the entire rear end of the truck bed through the rear sealing plate 152. At the same time, when the distance between the rear flap cloth 150 and the truck bed is relatively large, the connecting bracket 1523 is moved towards the truck bed, so that the rear flap cloth 150 can contact the rear end of the truck bed, achieving relative sealing between the outer conical tube 11 and the rear end of the truck bed.

[0073] The air outlet end of the outer air duct 20 is connected to a dust collection device. The material is injected into the truck bed through the end telescopic feed pipe 22. When dust is generated during the injection of the material, the dust collection device sucks away the dust-containing air between the truck bed and the outer conical tube 11 through the dust collection channel composed of the dust collection holes 2101 and the outer air duct 20.

[0074] Unless otherwise defined, the technical terms or scientific terms used in this application shall have the ordinary meanings as understood by those of ordinary skill in the field to which this application pertains. The terms "first", "second", "third" and similar terms used in the description and claims of this application do not denote any order, quantity or importance, but are only used to distinguish different components. Similar terms such as "a" or "an" do not denote a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. Terms such as "upper", "lower", "left", "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0075] The above are all optional embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application shall be covered within the protection scope of this application.

Claims

1. A full-coverage negative-pressure sealing cover for a slag loading vehicle, characterized in that: It includes a sealing cover mechanism (1) and a terminal feeding mechanism (2). The sealing cover mechanism (1) includes a support skeleton (10) and an outer conical tube (11). The outer conical tube (11) is installed on the support skeleton (10). One end with a larger diameter of the outer conical tube (11) is used to cover the hopper of the slag loading truck and is used for making a sealed contact with the hopper opening of the hopper. The terminal feeding mechanism (2) includes a connecting ring (21), a terminal telescopic feeding pipe (22) and an outer layer air duct (20). The connecting ring (21) is installed at one end with a smaller diameter of the outer conical tube (11). The discharging end of the terminal telescopic feeding pipe (22) is connected to the inner hole of the connecting ring (21). The outer layer air duct (20) is sleeved on the terminal telescopic feeding pipe (22) and one end of it is connected to the connecting ring (21). The connecting ring (21) is provided with a dust suction hole (2101) located between the terminal telescopic feeding pipe (22) and the outer layer air duct (20), and the dust suction hole (2101) is communicated with the outer conical tube (11).

2. The full-coverage negative-pressure sealing hood for a slag loading vehicle according to claim 1, wherein: The sealing cover mechanism (1) further includes a left sealing plate (12), a right sealing plate (13), a front sealing plate (14) and a rear sealing assembly (15). The left sealing plate (12), the right sealing plate (13), the front sealing plate (14) and the rear sealing assembly (15) are all arranged at one end with a larger diameter of the outer conical tube (11) and are all connected to the outer conical tube (11). In the width direction of the hopper, the left sealing plate (12) and the right sealing plate (13) are respectively horizontally installed at both ends of the outer conical tube (11) and are both arranged along the length direction of the hopper. And a horizontally arranged left sealing gasket (122) is provided below the left sealing plate (12), and a horizontally arranged right sealing gasket (132) is provided below the right sealing plate (13). In the length direction of the hopper, the front sealing plate (14) and the rear sealing assembly (15) are respectively installed at both ends of the outer conical tube (11) and are both arranged along the width direction of the hopper. A hinge (141) is connected between the front sealing plate (14) and the outer conical tube (11). A front side flap cloth (140) is provided on the front sealing plate (14). The front side flap cloth (140) covers the front sealing plate (14) and extends beyond the edge of the front sealing plate (14). The rear sealing assembly (15) includes a rear side flap cloth (150). The rear side flap cloth (150) is arranged along the width direction of the hopper and is connected to the outer conical tube (11).

3. The full-coverage negative-pressure sealing cover for a slag loading vehicle according to claim 2, characterized in that: A left elastic member (121) is connected between the left sealing gasket (122) and the left sealing plate (12). A right elastic member is connected between the right sealing gasket (132) and the right sealing plate (13).

4. The full-coverage negative-pressure sealing hood for a slag loading vehicle according to claim 3, characterized in that: The sealing cover mechanism (1) further includes a fireproof cloth (142). The front side lapping cloth (140) is arranged above the front side sealing plate (14), and the fireproof cloth (142) covers the side of the front side sealing plate (14) away from the front side lapping cloth (140).

5. The full-coverage negative-pressure sealing cover for a slag loading vehicle according to claim 2, wherein: The rear sealing assembly (15) further includes an intermediate sealing gasket (151) and a plurality of partition plates (1511). The intermediate sealing gasket (151) is horizontally arranged between the end feeding mechanism (2) and the rear side lapping cloth (150) and is connected to the outer conical tube (11). The intermediate sealing gasket (151) is coplanar with the left side sealing gasket (122) and the right side sealing gasket (132), and one end thereof contacts the left side sealing gasket (122), and the other end contacts the right side sealing gasket (132). The partition plates (1511) are arranged between the intermediate sealing gasket (151) and the outer conical tube (11), are connected to the inner wall of the outer conical tube (11), and also contact the intermediate sealing gasket (151). In the length direction of the carriage, the plurality of partition plates (1511) are spaced apart and distributed.

6. The full-coverage negative-pressure sealing cover for a slag loading vehicle according to claim 2, wherein: The rear sealing assembly (15) further includes a rear side sealing plate (152). The rear side sealing plate (152) is horizontally installed at the end with a larger diameter of the outer conical tube (11), is located between the left side sealing plate (12) and the right side sealing plate (13), and is also coplanar with the left side sealing plate (12) and the right side sealing plate (13). A rear side sealing gasket (1522) is arranged below the rear side sealing plate (152), and the rear side sealing gasket (1522) is coplanar with the left side sealing gasket (122) and the right side sealing gasket (132). A rear side elastic member (1521) is connected between the rear side sealing gasket (1522) and the rear side sealing plate (152). The rear side lapping cloth (150) is installed at one end of the rear side sealing plate (152) away from the outer conical tube (11).

7. A full-coverage negative-pressure sealing cover for a slag loading vehicle according to claim 1, characterized in that: The end feeding mechanism (2) further includes a flow equalizing cone (23). The flow equalizing cone (23) includes an inner conical tube (231) and a plurality of flow dividing rods (232). The inner conical tube (231) is arranged inside the outer conical tube (11), and the end with a smaller diameter of the inner conical tube (231) is connected to the discharge end of the end telescopic feeding pipe (22). The flow dividing rods (232) are connected to the outer side wall of the inner conical tube (231), and the plurality of flow dividing rods (232) are distributed along the circumferential direction of the inner conical tube (231).

8. The full-coverage negative-pressure sealing hood for a slag loading vehicle according to claim 1, characterized in that: The end feeding mechanism (2) further includes a rotary vane level switch (24). The rotary vane level switch (24) is installed inside the outer conical tube (11).

Images