A raw material addition device for the preparation of concentrated sulfuric acid

Abstract

This application provides a raw material adding device for concentrated sulfuric acid preparation, relating to the field of concentrated sulfuric acid preparation technology. It includes an auger conveyor with a feed inlet at the top. The feeding mechanism is characterized by a feeding mechanism at the top of the feed inlet, comprising a mounting frame at the top of the inlet, two material boxes inside the mounting frame, each with a storage hopper fixedly connected to its top, and each storage hopper with a cover plate. The two material boxes have notches on their opposite sides, with baffles inserted into the notches, and a driving unit between the baffles and the material boxes. Through this feeding mechanism, the movable baffles within the material boxes can seal and isolate the material boxes when raw materials are added to the storage hoppers, preventing the auger conveyor from communicating with the outside environment during the feeding process and reducing the amount of harmful gases emitted during concentrated sulfuric acid preparation.

Description

Technical Field

[0001] This utility model relates to the field of concentrated sulfuric acid preparation technology, and more specifically, to a raw material addition device for the preparation of concentrated sulfuric acid. Background Technology

[0002] In the field of chemical production, the preparation of concentrated sulfuric acid is an important and widely used process. In the process of preparing concentrated sulfuric acid, the accurate and stable addition of raw materials is the key to ensuring the smooth progress of the production process and the achievement of product quality standards.

[0003] In existing technologies, when adding raw materials to a raw material adding device, because the device is directly connected to the outside environment, harmful gases (such as sulfur dioxide) generated during the preparation of concentrated sulfuric acid can easily escape from the device during the addition process. Therefore, we have made improvements to this by proposing a raw material adding device for the preparation of concentrated sulfuric acid. Utility Model Content

[0004] This utility model provides a raw material addition device for the preparation of concentrated sulfuric acid, including an auger conveyor. The auger conveyor has a feed inlet at the top. The feeding mechanism is characterized in that a feeding mechanism is provided at the top of the feed inlet. The feeding mechanism includes an installation frame provided at the top of the feed inlet. Two material boxes are provided inside the installation frame. A storage hopper is fixedly connected to the top of each of the two material boxes, and a cover plate is provided on the top of each of the two storage hoppers. A notch is provided on the side of each of the two material boxes that is far apart from each other. A baffle is inserted into the notch, and a driving part is provided between the baffle and the material box.

[0005] As a preferred technical solution of this application, a connecting plate is fixedly connected between the tops of the two storage hoppers, the connecting plate is located between the two cover plates, and a hinge is provided between the cover plates and the connecting plate.

[0006] As a preferred technical solution of this application, the driving unit includes a support member disposed on the material box, the support member is connected to a cylinder body, the piston rod of the cylinder body is connected to a connecting frame, and the connecting frame is fixedly connected to the outer side of the baffle.

[0007] As a preferred technical solution of this application, the support member includes a support plate connected to the material box, a cylinder bracket is installed on the top of the support plate, and the cylinder body is installed on the cylinder bracket.

[0008] As a preferred technical solution of this application, a limiting rod is fixedly connected to the side of the connecting frame away from the baffle, and one end of the limiting rod passes through the cylinder bracket.

[0009] As a preferred technical solution of this application, a sealing element is provided on the side of the material box near the cylinder bracket, and the baffle passes through the sealing element.

[0010] As a preferred technical solution of this application, the sealing element includes a sealing sleeve fitted on the outer surface of the baffle, and a clamping plate is provided on the side of the sealing sleeve away from the material box, and the clamping plate is fixed to the material box by bolts.

[0011] As a preferred technical solution of this application, a connecting plate is fixedly installed inside the material box, and the connecting plate is in contact with the bottom of the baffle.

[0012] As a preferred technical solution of this application, the auger conveyor also has a discharge port, and a flange is provided at the end of the discharge port away from the auger conveyor.

[0013] As a preferred technical solution of this application, the auger conveyor is provided with a plurality of mounting seats, and the mounting seats are provided with mounting holes.

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

[0015] In the scheme of this application:

[0016] This application utilizes a feeding mechanism with a movable baffle inside the material box. When adding raw materials to the storage hopper, the baffle can seal and isolate the material box, preventing the auger conveyor from connecting with the outside world during the feeding process. This reduces the amount of harmful gases emitted during the preparation of concentrated sulfuric acid, lowers the health risks to operators, and also reduces the pollution of the external environment by harmful gases. Attached Figure Description

[0017] Figure 1 A schematic diagram of the raw material addition device for the preparation of concentrated sulfuric acid provided in this application;

[0018] Figure 2 This is a structural diagram of the feed inlet provided in this application;

[0019] Figure 3 A schematic diagram of the connecting frame provided in this application;

[0020] Figure 4 A schematic diagram of the notch provided in this application.

[0021] The image shows:

[0022] 1. Screw conveyor; 101. Inlet; 102. Outlet; 2. Feeding mechanism; 201. Mounting frame; 202. Material box; 203. Storage hopper; 204. Connecting plate; 205. Handle; 206. Cover plate; 207. Notch; 208. Baffle; 209. Support plate; 210. Cylinder bracket; 211. Limiting rod; 212. Sealing sleeve; 213. Clamping plate; 214. Connecting frame; 215. Cylinder body; 3. Mounting seat. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] For an example, please refer to... Figures 1-4 A raw material addition device for the preparation of concentrated sulfuric acid includes an auger conveyor 1. The auger conveyor 1 has a feed inlet 101 at the top. A feeding mechanism 2 is provided at the top of the feed inlet 101. The feeding mechanism 2 includes a mounting frame 201 at the top of the feed inlet 101. Two material boxes 202 are provided inside the mounting frame 201. A storage hopper 203 is fixedly connected to the top of each of the two material boxes 202. A cover plate 206 is provided at the top of each of the two storage hoppers 203. A notch 207 is provided on the side of each of the two material boxes 202 that is far apart from each other. A baffle 208 is inserted into the notch 207. A driving part is provided between the baffle 208 and the material box 202. A sealing gasket is provided at the bottom of the cover plate 206. The sealing gasket can improve the sealing between the cover plate 206 and the storage hopper 203.

[0027] A movable baffle 208 is installed inside the material box 202. When adding raw materials into the storage hopper 203, the baffle 208 can block and isolate the material box 202, so that the auger conveyor 1 is not connected to the outside world during the feeding process. This reduces the amount of harmful gas emitted during the preparation of concentrated sulfuric acid, reduces the harm to the health of operators, and also reduces the pollution of the external environment by harmful gases.

[0028] Furthermore, a connecting plate 204 is fixedly connected between the tops of the two storage hoppers 203. The connecting plate 204 is located between the two cover plates 206. A hinge is provided between the cover plate 206 and the connecting plate 204. A handle 205 is installed on the top of the cover plate 206. The handle 205 is provided for hand gripping when opening and closing the cover plate 206.

[0029] Furthermore, the drive unit includes a support member disposed on the material box 202. The support member is connected to a cylinder body 215. The piston rod of the cylinder body 215 is connected to a connecting frame 214. The connecting frame 214 is fixedly connected to the outer side of the baffle 208. The cylinder body 215 can drive the baffle 208 to move through the connecting frame 214 to adjust the position of the baffle 208.

[0030] Furthermore, the support includes a support plate 209 connected to the material box 202, a cylinder bracket 210 is mounted on the top of the support plate 209, and the cylinder body 215 is mounted on the cylinder bracket 210. The support plate 209 and the cylinder bracket 210 cooperate with each other to support the cylinder body 215.

[0031] Furthermore, a limiting rod 211 is fixedly connected to the side of the connecting frame 214 away from the baffle 208. One end of the limiting rod 211 passes through the cylinder bracket 210. The limiting rod 211 can limit the connecting frame 214 to improve the stability of the horizontal movement of the connecting frame 214 and the baffle 208.

[0032] Furthermore, a sealing element is provided on the side of the material box 202 near the cylinder bracket 210, and the baffle 208 passes through the sealing element; the sealing element includes a sealing sleeve 212 sleeved on the outer surface of the baffle 208, and a clamping plate 213 is provided on the side of the sealing sleeve 212 away from the material box 202. The clamping plate 213 is fixed to the material box 202 by bolts. The sealing sleeve 212 and the sealing gasket are both made of acid and alkali resistant rubber, such as fluororubber, which can withstand the corrosion of acidic gases during the preparation of concentrated sulfuric acid and ensure the sealing performance for long-term use;

[0033] The sealing sleeve 212 can be clamped and fixed by the clamping plate 213, and the sealing sleeve 212 can improve the sealing between the notch 207 and the baffle 208.

[0034] Furthermore, a connecting plate 204 is fixedly installed inside the material box 202, and the connecting plate 204 contacts the bottom of the baffle 208. The connecting plate 204 can provide auxiliary support for the baffle 208 to improve the stability of the horizontal movement of the baffle 208.

[0035] Furthermore, the auger conveyor 1 also has a discharge port 102. A flange is provided at the end of the discharge port 102 away from the auger conveyor 1. The flange is used to connect the discharge port 102 to the flange of the feed port of the concentrated sulfuric acid preparation equipment with bolts.

[0036] Furthermore, the auger conveyor 1 is provided with several mounting seats 3, and the mounting seats 3 are provided with mounting holes, so that the mounting seats 3 can support the auger conveyor 1.

[0037] The feed inlet 101 and the discharge outlet 102 are welded to the auger conveyor 1. The mounting frame 201 is bolted to the feed inlet 101. The material box 202 is welded to the storage hopper 203 and the mounting frame 201. The connecting plate 204 is welded to the top of the storage hopper 203. The handle 205 is welded to the top of the cover plate 206. The support plate 209 is welded to the cylinder bracket 210 and the material box 202. The connecting frame 214 is welded to the baffle 208 and the limiting rod 211. The piston rod of the cylinder body 215 is welded to the connecting frame 214. The connecting plate 204 is welded inside the material box 202. The auger conveyor 1 is an existing component, and its specific structure and principle are existing technology, which will not be described in detail in this application.

[0038] In use, the connecting frame 214 and the baffle 208 are pushed to move inward to the material box 202 by the cylinder body 215, and the material box 202 is blocked by the baffle 208. Then the cover plate 206 is opened and the raw material is added into the storage hopper 203. After the feeding is completed, the cover plate 206 is closed, and the baffle 208 is driven to move outward by the cylinder body 215. At this time, the raw material falls into the auger conveyor 1 from the feed port 101, and then reaches the discharge port 102 by the conveyor 1. Finally, it enters the preparation equipment from the discharge port 102.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A raw material addition device for the preparation of concentrated sulfuric acid, comprising an auger conveyor (1), wherein the auger conveyor (1) has a feed inlet (101) at its top, characterized in that, A feeding mechanism (2) is provided at the top of the feed inlet (101). The feeding mechanism (2) includes a mounting frame (201) at the top of the feed inlet (101). Two material boxes (202) are provided inside the mounting frame (201). A storage hopper (203) is fixedly connected to the top of each of the two material boxes (202). A cover plate (206) is provided on the top of each of the two storage hoppers (203). A notch (207) is provided on the side of each of the two material boxes (202) that is far apart from each other. A baffle (208) is inserted into the notch (207). A driving part is provided between the baffle (208) and the material box (202).

2. The raw material addition device for the preparation of concentrated sulfuric acid according to claim 1, characterized in that, A connecting plate (204) is fixedly connected between the tops of the two storage hoppers (203). The connecting plate (204) is located between the two cover plates (206). A hinge is provided between the cover plates (206) and the connecting plate (204).

3. The raw material addition device for the preparation of concentrated sulfuric acid according to claim 1, characterized in that, The drive unit includes a support member disposed on the material box (202), the support member is connected to a cylinder body (215), the piston rod of the cylinder body (215) is connected to a connecting frame (214), and the connecting frame (214) is fixedly connected to the outer side of the baffle (208).

4. The raw material addition device for the preparation of concentrated sulfuric acid according to claim 3, characterized in that, The support includes a support plate (209) connected to the material box (202), a cylinder bracket (210) is mounted on the top of the support plate (209), and the cylinder body (215) is mounted on the cylinder bracket (210).

5. The raw material addition device for the preparation of concentrated sulfuric acid according to claim 4, characterized in that, The connecting frame (214) is fixedly connected to a limiting rod (211) on the side away from the baffle (208), and one end of the limiting rod (211) passes through the cylinder bracket (210).

6. The raw material addition device for the preparation of concentrated sulfuric acid according to claim 5, characterized in that, The material box (202) is provided with a seal on the side near the cylinder bracket (210), and the baffle (208) passes through the seal.

7. The raw material addition device for the preparation of concentrated sulfuric acid according to claim 6, characterized in that, The sealing element includes a sealing sleeve (212) fitted on the outer surface of the baffle (208). A clamping plate (213) is provided on the side of the sealing sleeve (212) away from the material box (202). The clamping plate (213) is fixed to the material box (202) by bolts.

8. The raw material addition device for the preparation of concentrated sulfuric acid according to claim 1, characterized in that, A connecting plate (204) is fixedly installed inside the material box (202), and the connecting plate (204) is in contact with the bottom of the baffle (208).

9. The raw material addition device for the preparation of concentrated sulfuric acid according to claim 1, characterized in that, The auger conveyor (1) also has a discharge port (102), and a flange is provided at the end of the discharge port (102) away from the auger conveyor (1).

10. The raw material addition device for the preparation of concentrated sulfuric acid according to claim 1, characterized in that, The auger conveyor (1) is provided with several mounting seats (3), and the mounting seats (3) are provided with mounting holes.

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