Laterite-nickel ore pulverized coal injection device and process method

Abstract

The invention discloses a laterite nickel ore pulverized coal injection device which comprises a material storage tank and an injection tank, a connector is arranged between the material storage tank and the injection tank, a material conveying pipe is fixedly inserted into the bottom of the injection tank, a connecting cylinder is arranged on the right side of the injection tank, the bottom end of the material conveying pipe fixedly penetrates through the connecting cylinder and is fixedly sleeved with a first bearing, and a second bearing is arranged on the right side of the injection tank. A connecting pipe fixedly sleeves the edge of the outer side of the first bearing, a transverse pipe is fixedly connected to the bottom of the connecting pipe, a plurality of nozzles are fixedly inserted into the bottom of the transverse pipe, a first bevel gear fixedly sleeves the edge of the outer side of the connecting pipe, and a second bevel gear meshed with the first bevel gear is arranged on the right side of the first bevel gear; according to the laterite-nickel ore pulverized coal injection device and the process method, the material conveying pipe can convey materials and can drive the transverse pipe and the spray head to rotate, two purposes are achieved at a time, and the materials are evenly sprayed into a smelting furnace.

Description

Technical Field

[0001] The invention relates to the technical field of coal mines, and in particular to a laterite nickel ore coal powder injection device and a process method. Background Art

[0002] Laterite nickel ore is a nickel-containing ore that mainly exists in laterite or loess in tropical and subtropical regions. It is one of the important sources of nickel. Laterite nickel ore usually contains a high nickel content, but may also be accompanied by other metals such as iron, chromium, cobalt, etc. Due to its special properties, the extraction and processing of laterite nickel ore is relatively complicated. Common extraction methods include redox method, leaching method and thermal method.

[0003] Laterite nickel ore smelting is the process of extracting metal components from laterite nickel ore. Metal components such as nickel, iron, chromium, etc. in laterite nickel ore can be separated and purified through smelting. Laterite nickel ore smelting is a complex process involving multiple steps and technologies. In actual production, it is necessary to select an appropriate smelting process based on the characteristics of the ore and production requirements, and operate it in combination with relevant equipment and facilities.

[0004] The oxygen-enriched pulverized coal side-blowing reduction technology for laterite nickel ore belongs to the promotion of the side-blowing submerged combustion molten pool smelting technology in the field of laterite nickel ore smelting. The violent bubbling of the molten pool and the tumbling of the liquid slag produce a huge reaction interface. The iron and nickel oxides are heated, melted and reduced and sulfided. The reduced nickel matte liquid beads settle and separate and enter the static slag layer below the nozzle. Under the action of gravity, the slag and matte begin to separate, thus forming a slag layer that basically does not contain nickel on the upper part of the furnace, and the nickel matte is deposited at the bottom of the furnace. Ingots are discharged from the nickel matte discharge port. After the gangue (SiO2, MgO, Al2O3, CaO, etc.) in the ore is melted, liquid slag with good performance is generated and discharged from the slag discharge port.

[0005] When coal is used as fuel, granular coal is added from the top of the smelting furnace, and the granular coal falls into the melt by gravity. Most of the existing laterite nickel ore smelting furnaces using coal as fuel have problems such as insufficient combustion of granular coal, low utilization efficiency and high production cost. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art, one of the objects of the present invention is to provide a laterite nickel ore pulverized coal injection device and a process method.

[0007] One of the purposes of the present invention is achieved by the following technical solution: A laterite nickel ore coal powder injection device comprises a storage tank and a blowing tank, a connecting head is provided between the storage tank and the blowing tank, a feeding pipe is fixedly inserted at the bottom of the blowing tank, a connecting cylinder is provided on the right side of the blowing tank, the bottom end of the feeding pipe is fixedly penetrated through the connecting cylinder, and a first bearing is fixedly sleeved, a connecting pipe is fixedly sleeved on the outer edge of the first bearing, a cross pipe is fixedly connected to the bottom of the connecting pipe, a plurality of nozzles are fixedly inserted at the bottom of the cross pipe, a first bevel gear is fixedly sleeved on the outer edge of the connecting pipe, a second bevel gear meshing with the first bevel gear is provided on the right side of the first bevel gear, a fixing plate is provided on the right side of the second bevel gear, a first bevel gear is fixedly inserted on the fixing plate Two bearings, a rotating rod is fixedly passed through the inner cavity of the second bearing, and a plurality of baffles are fixedly connected to the outer edge of the rotating rod near the right side, a branch pipe is fixedly inserted into the right side of the feed pipe, and threaded rods are fixedly connected to the front and rear sides of the connecting tube, a first disc is provided at the bottom end of the threaded rod, a first screw hole is opened at the top of the first disc, and the bottom end of the threaded rod is inserted into the inner cavity of the first screw hole, a movable plate is provided at the bottom of the first disc, the movable plate is movably connected to the connecting tube, a second screw hole is opened on the movable plate, a screw rod is passed through the inner cavity of the second screw hole, a second disc is fixedly connected to the bottom end of the screw rod, and the screw rod and the second screw hole are threadedly connected.

[0008] Preferably, the storage tank is located above the blowing tank, a pressure transmitter is provided on the side wall of the storage tank, support frames are fixedly connected to both sides of the storage tank, the blowing tank is fixedly connected to the support frames, and a feed pipe is fixedly inserted at the top of the storage tank.

[0009] Preferably, the bottom end of the branch pipe corresponds to a baffle, and a plurality of fixing teeth are fixedly connected to the baffle.

[0010] Preferably, a circular ring is fixedly sleeved on the outer edge of the connecting tube near the bottom, and a plurality of through holes are opened on the circular ring.

[0011] Preferably, the threaded rod is arranged obliquely, and the threaded rod and the screw hole are threadedly connected.

[0012] Preferably, the bottom of the movable plate is fixedly connected to a first connecting plate, a second connecting plate is provided between the first connecting plates, a pin shaft passes through the second connecting plate, the pin shaft and the second connecting plate are rotatably connected, both ends of the pin shaft are fixedly passed through adjacent first connecting plates, and the second connecting plate is fixedly connected to the side wall of the connecting tube.

[0013] A process method for a laterite-nickel ore pulverized coal injection device comprises the following steps: Step 1: First, install the connecting tube on the furnace. During installation, in order to facilitate the connection between the ring and the furnace, the second disc can be rotated. The second disc drives the screw rod to rotate in the inner cavity of the second screw hole. The screw rod drives the first disc to rotate. The first disc rotates away from the threaded rod under the action of the thread. Step 2: Then flip the movable plate, the movable plate flips around the pin shaft, the movable plate drives the second disc to flip to the bottom of the furnace connection, and then rotates the first disc to drive the second disc to move upward, the second disc moves upward to fit with the bottom of the furnace connection, so as to simply fix the connecting tube, and then there is no need to support the connecting tube, just fix the connecting tube on the furnace with screws, which facilitates the installation operation; Step 3: Pour the material into the storage tank through the feed pipe. The material enters the spray tank under the action of gravity, then enters the horizontal pipe from the feed pipe, and finally sprays out from the nozzle; Step 4: When the material enters the horizontal pipe from the feed pipe, part of the material is ejected from the branch pipe, and the ejected material impacts the baffle, and the baffle drives the rotating rod to rotate in the inner cavity of the second bearing. The setting of the fixed teeth greatly increases the friction force on the surface of the baffle, so that the baffle can work normally, and the rotating rod drives the second bevel gear to rotate, and the second bevel gear drives the connecting pipe to rotate through the first bevel gear, and the connecting pipe drives the horizontal pipe and the nozzle to rotate, so that the material is evenly sprayed inside the furnace.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention discloses a laterite nickel ore coal powder injection device and a process method. The feed pipe of the device can not only transport materials, but also drive the horizontal pipe and the nozzle to rotate, killing two birds with one stone, so that the materials are evenly sprayed inside the furnace.

[0015] 2. A laterite nickel ore pulverized coal injection device and process method of the present invention installs a connecting tube on a furnace. During installation, in order to facilitate the connection between the ring and the furnace, the second disc can be rotated, and the first disc is rotated to be away from the threaded rod under the action of the thread, and then the movable plate is flipped. The movable plate flips around the pin shaft, and the movable plate drives the second disc to flip to the bottom of the furnace connection. Then the first disc is rotated to drive the second disc to move upward. The second disc moves upward to fit with the bottom of the furnace connection, thereby simply fixing the connecting tube. Then, there is no need to support the connecting tube, and the connecting tube only needs to be fixed to the furnace by screws, which facilitates the installation operation.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front perspective view of a laterite nickel ore coal powder injection device and a process method of the present invention; Figure 2 It is a front perspective view of a component connection tube of a laterite nickel ore coal powder injection device and process method of the present invention; Figure 3 It is a front view of a component ring of a laterite nickel ore coal powder injection device and a process method of the present invention; Figure 4 It is a bottom-up stereoscopic view of a component connection tube of a laterite nickel ore coal powder injection device and process method of the present invention; Figure 5 It is a front view of a screw rod component of a laterite nickel ore coal powder injection device and process method of the present invention; Figure 6 A bottom-up stereoscopic view of a screw rod component of a laterite-nickel ore pulverized coal injection device and process method of the present invention; Figure 7 It is a rear perspective view of a screw rod component of a laterite nickel ore coal powder injection device and process method of the present invention; Figure 8 It is a front perspective view of a cross-tube component of a laterite-nickel ore coal powder injection device and process method of the present invention; Fig. 9 It is a front view stereogram of a nozzle of a laterite nickel ore pulverized coal injection device and a process method of the present invention; Fig.10 It is a front perspective view of a rotating rod component of a laterite nickel ore coal powder injection device and process method of the present invention; Fig.11 The present invention is a front view of a nozzle component of a laterite nickel ore pulverized coal injection device and process method.

[0018] Numbers in the figure: 1. spray tank; 2. storage tank; 3. connector; 4. feed pipe; 5. support frame; 6. pressure transmitter; 7. feed pipe; 8. connecting tube; 9. ring; 10. perforation; 11. threaded rod; 12. first disc; 13. screw hole; 14. movable plate; 15. screw rod; 16. second screw hole; 17. second disc; 18. first connecting plate; 19. second connecting plate; 20. pin shaft; 21. first bearing; 22. connecting pipe; 23. cross pipe; 24. nozzle; 25. first bevel gear; 26. second bevel gear; 27. fixed plate; 28. second bearing; 29. ​​baffle; 30. fixed tooth; 31. branch pipe; 32. rotating rod. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0020] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0022] See also Figure 1-11 The present invention provides a technical solution: a laterite nickel ore pulverized coal injection device, comprising a storage tank 2 and a spray tank 1, a connector 3 is provided between the storage tank 2 and the spray tank 1, a feed pipe 7 is fixedly inserted at the bottom of the spray tank 1, a connecting tube 8 is provided on the right side of the spray tank 1, the bottom end of the feed pipe 7 is fixedly penetrated through the connecting tube 8, and a first bearing 21 is fixedly sleeved, a connecting pipe 22 is fixedly sleeved on the outer edge of the first bearing 21, a cross pipe 23 is fixedly connected to the bottom of the connecting pipe 22, a plurality of nozzles 24 are fixedly inserted at the bottom of the cross pipe 23, a first bevel gear 25 is fixedly sleeved on the outer edge of the connecting pipe 22, a second bevel gear 26 meshing with the first bevel gear 25 is provided on the right side of the first bevel gear 25, a fixing plate 27 is provided on the right side of the second bevel gear 26, a fixing plate 27 is fixedly inserted on the fixing plate 27 A second bearing 28 is provided, and a rotating rod 32 is fixedly provided through the inner cavity of the second bearing 28, and a plurality of baffles 29 are fixedly connected to the outer edge of the rotating rod 32 near the right side, and a branch pipe 31 is fixedly plugged into the right side of the feed pipe 7, and a threaded rod 11 is fixedly connected to the front and rear sides of the connecting tube 8, and a first disc 12 is provided at the bottom end of the threaded rod 11, and a first screw hole 13 is provided at the top of the first disc 12, and the bottom end of the threaded rod 11 is plugged into the inner cavity of the first screw hole 13, and a movable plate 14 is provided at the bottom of the first disc 12, and the movable plate 14 is movably connected to the connecting tube 8, and a second screw hole 16 is provided on the movable plate 14, and a screw rod 15 is provided through the inner cavity of the second screw hole 16, and a second disc 17 is fixedly connected to the bottom end of the screw rod 15, and the screw rod 15 and the second screw hole 16 are threadedly connected; The storage tank 2 is located above the spray tank 1, and a pressure transmitter 6 is provided on the side wall of the storage tank 2. Support frames 5 are fixedly connected on both sides of the storage tank 2, and the spray tank 1 is fixedly connected to the support frame 5. A feed pipe 4 is fixedly inserted at the top of the storage tank 2, and the bottom end of the branch pipe 31 corresponds to the baffle 29. A plurality of fixed teeth 30 are fixedly connected to the baffle 29. A circular ring 9 is fixedly sleeved on the outer edge of the connecting tube 8 near the bottom, and a plurality of through holes 10 are opened on the circular ring 9. The threaded rod 11 is inclined, and the threaded rod 11 and the screw hole 13 are threadedly connected. A first connecting plate 18 is fixedly connected to the bottom of the movable plate 14, and a second connecting plate 19 is provided between the first connecting plates 18. A pin shaft 20 is penetrated on the second connecting plate 19, and the pin shaft 20 and the second connecting plate 19 are rotatably connected. Both ends of the pin shaft 20 are fixedly penetrated through the adjacent first connecting plates 18, and the second connecting plate 19 is fixedly connected to the side wall of the connecting tube 8.

[0023] A process method for a laterite-nickel ore pulverized coal injection device comprises the following steps: Step 1: First, install the connecting tube 8 on the furnace. During installation, in order to facilitate the connection between the ring 9 and the furnace, the second disc 17 can be rotated. The second disc 17 drives the screw rod 15 to rotate in the inner cavity of the second screw hole 16. The screw rod 15 drives the first disc 12 to rotate. The first disc 12 rotates away from the threaded rod 11 under the action of the thread. Step 2: Then flip the movable plate 14, the movable plate 14 flips around the pin shaft 20, the movable plate 14 drives the second disc 17 to flip to the bottom of the furnace connection, and then rotate the first disc 12 to drive the second disc 17 to move upward, the second disc 17 moves upward to fit with the bottom of the furnace connection, so as to simply fix the connecting tube 8, and then there is no need to support the connecting tube 8, only need to fix the connecting tube 8 on the furnace by screws, which facilitates the installation operation; Step 3: Pour the material into the storage tank 2 through the feed pipe 4, the material enters the spray tank 1 under the action of gravity, then enters the horizontal pipe 23 from the feed pipe 7, and finally sprays out from the nozzle 24; Step 4: When the material enters the transverse pipe 23 from the feed pipe 7, part of the material is ejected from the branch pipe 31, and the ejected material impacts the baffle 29, and the baffle 29 drives the rotating rod 32 to rotate in the inner cavity of the second bearing 28. The setting of the fixed teeth 30 greatly increases the friction force on the surface of the baffle 29, so that the baffle 29 can work normally, and the rotating rod 32 drives the second bevel gear 26 to rotate, and the second bevel gear 26 drives the connecting pipe 22 to rotate through the first bevel gear 25, and the connecting pipe 22 drives the transverse pipe 23 and the nozzle 24 to rotate, so that the material is evenly sprayed inside the furnace; The material conveying pipe 7 of the device can not only convey materials, but also drive the horizontal pipe 23 and the nozzle 24 to rotate, killing two birds with one stone, so that the materials are evenly sprayed inside the furnace.

[0024] Working principle: Install the connecting tube 8 on the furnace. During installation, in order to facilitate the connection between the ring 9 and the furnace, the second disc 17 can be rotated. The second disc 17 drives the screw rod 15 to rotate in the inner cavity of the second screw hole 16. The screw rod 15 drives the first disc 12 to rotate. The first disc 12 rotates away from the threaded rod 11 under the action of the thread, and then the movable plate 14 is flipped. The movable plate 14 flips around the pin 20. The movable plate 14 drives the second disc 17 to flip to the bottom of the furnace connection. Then the first disc 12 is rotated to drive the second disc 17 to move upward. The second disc 17 moves upward until it fits with the bottom of the furnace connection, thereby simply fixing the connecting tube 8. Then, there is no need to support the connecting tube 8. The connecting tube 8 can be fixed to the furnace by screws. , which facilitates the installation operation. The material is poured into the storage tank 2 through the feed pipe 4. The material enters the spray tank 1 under the action of gravity, then enters the cross pipe 23 from the feed pipe 7, and finally is sprayed out from the nozzle 24. When the material enters the cross pipe 23 from the feed pipe 7, part of the material is sprayed out from the branch pipe 31, and the sprayed material impacts the baffle 29. The baffle 29 drives the rotating rod 32 to rotate in the inner cavity of the second bearing 28. The setting of the fixed teeth 30 greatly increases the friction force on the surface of the baffle 29, so that the baffle 29 can work normally. The rotating rod 32 drives the second bevel gear 26 to rotate. The second bevel gear 26 drives the connecting pipe 22 to rotate through the first bevel gear 25. The connecting pipe 22 drives the cross pipe 23 and the nozzle 24 to rotate, so that the material is evenly sprayed inside the furnace; The material conveying pipe 7 of the device can not only convey materials, but also drive the horizontal pipe 23 and the nozzle 24 to rotate, killing two birds with one stone, so that the materials are evenly sprayed inside the furnace.

[0025] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0030] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A laterite nickel ore pulverized coal injection device, comprising a storage tank (2) and an injection tank (1), wherein a connector (3) is provided between the storage tank (2) and the injection tank (1), and characterized in that: A feed pipe (7) is fixedly inserted at the bottom of the spray tank (1), a connecting tube (8) is provided on the right side of the spray tank (1), the bottom end of the feed pipe (7) is fixedly penetrated through the connecting tube (8) and is fixedly sleeved with a first bearing (21), the outer edge of the first bearing (21) is fixedly sleeved with a connecting pipe (22), the bottom of the connecting pipe (22) is fixedly connected with a transverse tube (23), the bottom of the transverse tube (23) is fixedly inserted with a plurality of nozzles (24), the outer edge of the connecting pipe (22) is fixedly sleeved with a first bevel gear (25), the right side of the first bevel gear (25) is provided with a second bevel gear (26) meshing with the first bevel gear (25), the right side of the second bevel gear (26) is provided with a fixing plate (27), the fixing plate (27) is fixedly inserted with a second bearing (28), the inner cavity of the second bearing (28) is fixedly penetrated with a rotating rod (32), the A plurality of baffles (29) are fixedly connected to the outer edge of the rotating rod (32) near the right side, a branch pipe (31) is fixedly inserted on the right side of the feeding pipe (7), and threaded rods (11) are fixedly connected to the front and rear sides of the connecting tube (8). A first disc (12) is provided at the bottom end of the threaded rod (11), a first screw hole (13) is provided at the top of the first disc (12), and the bottom end of the threaded rod (11) is inserted into the inner cavity of the first screw hole (13). A movable plate (14) is provided at the bottom of the first disc (12), and the movable plate (14) is movably connected to the connecting tube (8). A second screw hole (16) is provided on the movable plate (14), and a screw rod (15) is penetrated through the inner cavity of the second screw hole (16). A second disc (17) is fixedly connected to the bottom end of the screw rod (15), and the screw rod (15) and the second screw hole (16) are threadedly connected.

2. A laterite-nickel ore pulverized coal injection device as claimed in claim 1, characterized in that: The storage tank (2) is located above the spray tank (1), a pressure transmitter (6) is provided on the side wall of the storage tank (2), both sides of the storage tank (2) are fixedly connected to support frames (5), the spray tank (1) is fixedly connected to the support frames (5), and a feed pipe (4) is fixedly inserted at the top of the storage tank (2).

3. A laterite-nickel ore pulverized coal injection device as claimed in claim 1, characterized in that: The bottom end of the branch pipe (31) corresponds to the baffle (29), and a plurality of fixing teeth (30) are fixedly connected to the baffle (29).

4. A laterite-nickel ore pulverized coal injection device as claimed in claim 1, characterized in that: A circular ring (9) is fixedly sleeved on the outer edge of the connecting tube (8) near the bottom, and a plurality of through holes (10) are formed on the circular ring (9).

5. A laterite-nickel ore pulverized coal injection device as claimed in claim 1, characterized in that: The threaded rod (11) is arranged obliquely, and the threaded rod (11) and the screw hole (13) are threadedly connected.

6. A laterite-nickel ore pulverized coal injection device as claimed in claim 1, characterized in that: A first connecting plate (18) is fixedly connected to the bottom of the movable plate (14), a second connecting plate (19) is provided between the first connecting plates (18), a pin shaft (20) is passed through the second connecting plate (19), the pin shaft (20) and the second connecting plate (19) are rotatably connected, both ends of the pin shaft (20) are fixedly passed through adjacent first connecting plates (18), and the second connecting plate (19) is fixedly connected to the side wall of the connecting tube (8).

7. A process for a laterite-nickel ore pulverized coal injection device as claimed in any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: First, the connecting tube (8) is installed on the furnace. During installation, in order to facilitate the connection between the ring (9) and the furnace, the second disc (17) can be rotated, and the second disc (17) drives the screw rod (15) to rotate in the inner cavity of the second screw hole (16), and the screw rod (15) drives the first disc (12) to rotate. The first disc (12) is rotated away from the threaded rod (11) under the action of the thread. Step 2: Then flip the movable plate (14), the movable plate (14) flips around the pin shaft (20), the movable plate (14) drives the second disc (17) to flip to the bottom of the furnace connection, and then rotate the first disc (12) to drive the second disc (17) to move upward, the second disc (17) moves upward to fit with the bottom of the furnace connection, so as to simply fix the connecting tube (8), and then there is no need to support the connecting tube (8), only to fix the connecting tube (8) on the furnace by screws, which facilitates the installation operation; Step 3: Pour the material into the storage tank (2) through the feed pipe (4), the material enters the spray tank (1) under the action of gravity, then enters the horizontal pipe (23) through the feed pipe (7), and finally is sprayed out from the nozzle (24); Step 4: When the material enters the transverse pipe (23) from the feed pipe (7), part of the material is ejected from the branch pipe (31), and the ejected material impacts the baffle (29), and the baffle (29) drives the rotating rod (32) to rotate in the inner cavity of the second bearing (28). The setting of the fixed teeth (30) greatly increases the friction force on the surface of the baffle (29), so that the baffle (29) can work normally, and the rotating rod (32) drives the second bevel gear (26) to rotate, and the second bevel gear (26) drives the connecting pipe (22) to rotate through the first bevel gear (25), and the connecting pipe (22) drives the transverse pipe (23) and the nozzle (24) to rotate, so that the material is evenly sprayed inside the furnace.

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