Solid material sealed feeding device

Abstract

The utility model provides a solid material sealed feeding device which comprises a nitrogen conveying pipeline connected with a screw conveyor, a hopper is arranged at the feeding end of the screw conveyor, the discharging end of the screw conveyor is connected with a reaction kettle, the hopper is provided with a feeding port narrowing inwards from the right outer side, a grating plate is in lap joint with the interior of the feeding port, and the feeding port is provided with a feeding port. A sliding block is clamped in the grating plate in a sliding mode, and a hook capable of being connected to the inner end of the feeding port in a buckled mode is arranged on the sliding block. According to the hopper, the grating plate is integrally lapped in the feeding port, the hooks are matched with the inner end of the feeding port in a buckled mode, the grating plate can be fixed, a material bag can be prevented from falling into the hopper, and the hopper has the advantage that the grating plate is easy and convenient to disassemble and assemble.

Description

Technical Field

[0001] The present application relates to the technical field of feeding equipment, and in particular to a sealed feeding device for solid materials. Background Art

[0002] Reactors are important equipment in chemical production. In production and operation, the feeding methods into the reactor generally include pressure feeding, negative pressure extraction and manual feeding. For solid materials, most of them are currently fed by manually opening the hand hole or manhole of the reactor. However, this open feeding method has the following two serious problems: (1) If the materials contained in the reactor are toxic and harmful materials, some toxic and harmful substances will enter the atmosphere through the open manhole or handhole, affecting the health of operators, especially for some materials with low occupational exposure limits, which is easy to cause exposure injuries to operators, and even cause death in serious cases; (2) If the materials contained in the reactor are flammable and explosive materials, air will enter the reactor and fully mix with the flammable and explosive materials in the reactor to form an explosive mixture, and there is a risk of ignition during the feeding process. Patent No. CN218189540U discloses a solid feeding device for a closed reactor, which eliminates safety hazards by adopting nitrogen replacement. However, in actual application, material bags may fall into the hopper, affecting the normal operation of the production equipment. Therefore, the inventor proposes a sealed feeding device for solid materials. Utility Model Content

[0003] The purpose of the present application is to provide a sealed feeding device for solid materials, which utilizes a grid plate to prevent material bags from falling into the interior of a hopper and has the advantage of easy assembly and disassembly of the grid plate.

[0004] The embodiment of the present application is implemented as follows:

[0005] The present application provides a sealed feeding device for solid materials, comprising a nitrogen delivery pipeline connected to a screw conveyor, a hopper being provided at a feed end of the screw conveyor, a discharge end of the screw conveyor being connected to a reactor, the hopper having a feed opening which narrows from the right outside to the inside, a grid plate being overlapped in the feed opening, a slider being slidably clamped in the interior of the grid plate, and a hook being provided on the slider which can be buckled to the inner end of the feed opening.

[0006] The present application can fix the grating plate by overlapping the grating plate as a whole in the feed port and utilizing the hook to snap-fit ​​with the inner end of the feed port, thereby preventing the material bag from falling into the hopper and having the advantage of easy disassembly and assembly of the grating plate.

[0007] In an optional embodiment, the grid plate includes an outer ring and a support rod fixed to the inner part of the outer ring, and the sliders are arranged at two ends of the support rod.

[0008] In an optional embodiment, a partition rod perpendicular to the support rod is further provided inside the outer ring.

[0009] In an optional embodiment, both ends of the support rod are provided with accommodating cavities for accommodating the sliding blocks.

[0010] In an optional embodiment, a spring is compressed between the bottom of the accommodating cavity and the sliding block.

[0011] In an optional embodiment, the slider is provided with a lever extending out of the support rod.

[0012] In an optional embodiment, a sliding groove for extending the lever is provided on the outer side of the support rod.

[0013] In an optional embodiment, the lever and the hook are arranged on adjacent side walls of the slider.

[0014] In an optional embodiment, the lever and the hook are arranged vertically.

[0015] In an optional embodiment, a dust removal filter connected to the fan is provided on the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described below are only used to explain the present application, rather than to limit the scope of the present application. In the accompanying drawings:

[0017] Figure 1 is a schematic diagram of a solid material sealed feeding device according to an embodiment of the present application;

[0018] Figure 2 is a top view of a hopper according to an embodiment of the present application;

[0019] Figure 3 is a cross-sectional view of a support rod according to an embodiment of the present application;

[0020] Reference numerals:

[0021] 10. Screw conveyor;

[0022] 20. Nitrogen delivery pipeline;

[0023] 30. Hopper;

[0024] 40. Reactor;

[0025] 50. Dust removal filter;

[0026] 60. Fan;

[0027] 70. Ton bag;

[0028] 21. Nitrogen replenishment pipeline;

[0029] 31. Feed inlet;

[0030] 32. Grille plate;

[0031] 33. Outer ring;

[0032] 34. Support rod;

[0033] 35. Separator rod;

[0034] 341, accommodating chamber;

[0035] 342, slider;

[0036] 343, spring;

[0037] 344, hook;

[0038] 345, lever;

[0039] 346. Chute. DETAILED DESCRIPTION

[0040] Example 1

[0041] See also Figure 1-Figure 3 This embodiment provides a sealed solid material feeding device to solve the problem of material bags falling into the existing hopper.

[0042] In this embodiment, the sealed feeding device for solid materials includes a nitrogen conveying pipeline 20 connected to the screw conveyor 10, a hopper 30 is provided at the feed end of the screw conveyor 10, and the discharge end of the screw conveyor 10 is connected to the reactor 40. The hopper 30 has a feed port 31 which narrows from the right outside to the inside, and a grid plate 32 is overlapped inside the feed port 31. A slider 342 is slidably clamped inside the grid plate 32, and a hook 344 is provided on the slider 342 which can be buckled to the inner end of the feed port 31.

[0043] This embodiment can fix the grid plate 32 by overlapping the grid plate 32 as a whole in the feed port 31 and using the hook 344 to engage with the inner end of the feed port 31, thereby preventing the material bag from falling into the hopper 30 and having the advantage of easy disassembly and assembly of the grid plate 32.

[0044] It should be noted that the feed end of the screw conveyor 10 is sealedly connected to the discharge end of the hopper 30, the discharge end of the screw conveyor 10 is sealedly connected to the feed end of the reactor 40, and the nitrogen delivery pipeline 20 is arranged on the connecting pipeline between the discharge end of the screw conveyor 10 and the feed end of the reactor 40. The nitrogen delivery pipeline 20 is used to replace the screw conveyor 10 with nitrogen.

[0045] It should also be noted that a sealing cover is provided on the feed port 31 of the hopper 30. At the same time, a dust filter 50 connected to a fan 60 is provided on the hopper 30. The fan 60 is used to exhaust the inside of the hopper 30 so that the inside of the hopper 30 is a negative pressure environment. The dust entrained in the air inside the hopper 30 is filtered by the dust filter 50 and then discharged through the fan. When the screw conveyor 10 is replaced with nitrogen after the feeding is completed, the sealing cover of the hopper 30 must be covered first. The nitrogen provided by the nitrogen delivery pipeline 20 simultaneously performs nitrogen purge replacement on the screw conveyor 10 and the hopper 30. The replacement gas passes through the dust filter 50 and is discharged through the fan 60 until the nitrogen replacement is completed.

[0046] In addition, the grid plate 32 is constructed as a whole in a rectangular shape that matches the shape of the feed port 31, and the grid plate 32 includes an outer ring 33 and a support rod 34 fixed to the inner part of the outer ring 33, and a partition rod 35 is also provided inside the outer ring 33 to maintain a vertical relationship with the support rod 34, and a receiving cavity 341 with a rectangular cross section is provided at both ends of the support rod 34, and the slider 342 is adaptively clamped in the inner part of the receiving cavity 341, and the slider 342 is symmetrically arranged at both ends of the support rod 34, and the bottom of the receiving cavity 341 is connected to the slider 34. 2 is fixedly connected with a spring 343 in a compressed state, and the spring 343 is used to generate an outward pushing force for the slider 342. The L-shaped hook is fixedly connected to the bottom surface of the slider 342 and extends to the bottom of the support rod 34. The slider 342 is also provided with a lever 345 extending out of the support rod 34. A sliding groove 346 for extending the lever 345 is provided on the outer side of the support rod 34. The lever 345 and the hook 344 are arranged on the adjacent two side walls of the slider 342, and the lever 345 and the hook 344 are kept vertically arranged.

[0047] It should be understood that by providing the chute 346 on the side wall of the support rod 34 instead of on the top surface of the support rod 34 , materials can be prevented from falling into the accommodating cavity 341 .

[0048] When in use, the ton bag 70 containing raw materials is transported to the feed port 31 of the hopper 30 by the electric single-beam crane, and the fan 60 is started for exhaust; the ton bag 70 is connected to the feed port 31 of the hopper 30, the bag mouth of the ton bag 70 is untied, and the feeding begins; the feed hopper 30 is under negative pressure, and the dust entrained by the air passes through the dust removal filter 50 and is discharged through the fan 60;

[0049] After the feeding is completed, the sealing cover of the feed port 31 of the hopper 30 is covered, and the screw conveyor 10 and the hopper 30 are purged and replaced with nitrogen through the nitrogen delivery pipeline 20. The replacement gas passes through the dust removal filter 50 and is discharged through the fan 60, and the nitrogen replacement is completed;

[0050] After nitrogen replacement is completed, the material is transported to the reactor 40 through the screw conveyor 10. During the feeding process, as the pressure of the hopper 30 decreases, the nitrogen replenishment pipeline 21 is used to replenish and balance the internal pressure.

[0051] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A sealed feeding device for solid materials, characterized in that: It comprises a nitrogen delivery pipeline connected to a screw conveyor, a hopper is provided at the feed end of the screw conveyor, the discharge end of the screw conveyor is connected to a reactor, the hopper has a feed opening which narrows from the right outside to the inside, a grid plate is overlapped in the feed opening, a slider is slidably clamped in the interior of the grid plate, and a hook is provided on the slider which can be buckled to the inner end of the feed opening.

2. The solid material sealing feeding device according to claim 1, characterized in that: The grid plate comprises an outer ring and a support rod fixedly connected to the inner part of the outer ring, and the sliding blocks are arranged at two ends of the support rod.

3. The solid material sealing feeding device according to claim 2, characterized in that: A partition rod which is perpendicular to the support rod is also provided inside the outer ring.

4. The solid material sealing feeding device according to claim 3, characterized in that: The two ends of the support rod are provided with accommodating cavities for accommodating the sliding block.

5. The solid material sealing feeding device according to claim 4, characterized in that: A spring is compressed between the bottom of the accommodating cavity and the sliding block.

6. The solid material sealing feeding device according to claim 5, characterized in that: The sliding block is provided with a shifting rod extending out of the supporting rod.

7. The solid material sealed feeding device according to claim 6, characterized in that: A sliding groove for extending the shifting rod is provided on the outer side of the support rod.

8. The solid material sealed feeding device according to claim 7, characterized in that: The lever and the hook are arranged on two adjacent side walls of the sliding block.

9. The solid material sealed feeding device according to claim 8, characterized in that: The shifting rod and the hook are arranged vertically.

10. The solid material sealed feeding device according to claim 9, characterized in that: The hopper is provided with a dust removal filter connected with the fan.

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