Multi-stage hot air circulation device for drying titanium concentrate

Abstract

The utility model discloses a multistage hot air circulation device for titanium concentrate drying, which belongs to the technical field of mineral drying, and is characterized by comprising a working box, the right side of the working box is fixedly connected with a drying mechanism, the left side of the working box is fixedly connected with a circulation mechanism, and the front side of the working box is rotatably connected with a heat insulation door. The drying mechanism feeds hot air from the top and the bottom of the working box through the air inlet pipe and the air expanding hopper, multi-stage hot air heating is achieved, the titanium concentrate can be evenly heated in the working box, the drying uniformity and efficiency are improved, the drying mechanism can be automatically controlled through the PLC, and according to the characteristics and drying requirements of the titanium concentrate, the drying efficiency is improved. The working state of the hot air generator is adjusted, intelligent drying is achieved, the drying quality and the production efficiency are improved, the circulating mechanism can lead out hot air in the working box, the hot air is sent back into the working box after moisture absorption treatment, hot air recycling is achieved, and the energy utilization rate is increased.

Description

Technical Field

[0001] This utility model relates to the field of mineral drying technology, and in particular to a multi-stage hot air circulation device for drying titanium concentrate. Background Technology

[0002] Titanium concentrate is a key raw material for the production of important chemical products such as titanium dioxide. Drying is an important step in the processing of titanium concentrate.

[0003] To address the aforementioned problems, existing patents have provided solutions, but existing drying devices lack a structure for recycling hot air, resulting in low heat utilization. The hot air is directly discharged after one use, wasting a large amount of heat energy and thus increasing drying costs.

[0004] Therefore, a multi-stage hot air circulation device for drying titanium concentrate is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a multi-stage hot air circulation device for drying titanium concentrate, which can solve the problem that existing mineral drying lacks a structure for recycling hot air, resulting in low heat utilization rate, and hot air is directly discharged after one use, wasting a large amount of heat energy contained therein, thereby increasing drying costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage hot air circulation device for drying titanium concentrate, comprising a working box, a drying mechanism fixedly connected to the right side of the working box, a circulation mechanism fixedly connected to the left side of the working box, and an insulated door rotatably connected to the front side of the working box;

[0007] The circulation mechanism includes an exhaust pipe, a one-way solenoid valve, a connecting pipe, a limiting box, a moisture-absorbing plate, an exhaust port, and a return pipe. The exhaust pipe is fixedly connected to the left side of the working box. The one-way solenoid valve is installed on the left side of the exhaust pipe and the top of the limiting box. The connecting pipe is fixedly connected to the left side of the one-way solenoid valve. The limiting box is fixedly connected to the rear side of the working box. The rear side of the connecting pipe is fixedly connected to the bottom left side of the limiting box. The moisture-absorbing plate is fixedly connected to the inside of the limiting box. The exhaust port is opened on the rear side of the top of the limiting box. The return pipe is fixedly connected to the front side of the one-way solenoid valve. The front side of the return pipe passes through and extends to the inside of the working box.

[0008] Preferably, the drying mechanism includes a support plate, two hot air generators, a connecting frame, an air inlet pipe, an air diffuser, a placement plate, and a PLC controller, with the support plate fixedly connected to the bottom of the right side of the work box.

[0009] Preferably, the connecting frame is fixedly connected to the top of the support plate, the bottom hot air generator is fixedly connected to the inner side of the connecting frame, the top hot air generator is fixedly connected to the top of the connecting frame, and the air inlet pipe is fixedly connected to the left side of the hot air generator.

[0010] Preferably, the left side of the bottom air inlet pipe passes through the working box and is fixedly connected to the bottom of the bottom air duct, the left side of the top air inlet pipe passes through the working box and is fixedly connected to the bottom of the top air duct, the air ducts are fixedly connected to the top and bottom of the inner side of the working box respectively, the placement plate is slidably connected to the inner side of the working box, and the PLC controller is installed on the front side of the door insulation.

[0011] Preferably, the inner sides of the work box are fixedly connected to the two sides of the limiting plate, the top of the limiting plate is provided with a slide rail, and the bottom rear side of the placement plate is fixedly connected to the slider, which is slidably connected to the inner side of the slide rail.

[0012] Preferably, a moisture-absorbing cloth is fixedly connected to the inner side of the moisture-absorbing plate, and the moisture-absorbing cloth is made of calcium chloride fiber material.

[0013] Preferably, a heat insulation board is fixedly connected to the rear surface of the heat insulation door. The heat insulation board is made of polystyrene foam. A handle is fixedly connected to the front side of the heat insulation door. The surface of the handle is engraved with anti-slip texture.

[0014] Preferably, the inner side of the placement plate is configured as a filter mesh, and the surface of the placement plate is coated with an anti-corrosion coating.

[0015] Preferably, a sealing ring is fixedly connected to the rear side of the connecting pipe, and the side of the sealing ring away from the connecting pipe is fixedly connected to the left side of the limiting box.

[0016] Preferably, a dust filter is fixedly connected to the inner side of the exhaust port, and the surface of the dust filter is coated with an anti-corrosion coating.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The drying mechanism of this application introduces hot air from the top and bottom of the working box through the air inlet pipe and the air expansion duct, respectively, realizing multi-stage hot air heating, so that the titanium concentrate can be heated evenly in the working box, improving the uniformity and efficiency of drying. The drying mechanism can be automatically controlled by the PLC controller. According to the characteristics of the titanium concentrate and the drying requirements, the working state of the hot air generator can be adjusted to realize intelligent drying, improve drying quality and production efficiency.

[0019] 2. The circulation mechanism of this application can draw out the hot air from the working chamber, and after moisture absorption treatment, send it back into the working chamber, realizing the recycling of hot air, improving energy utilization, reducing drying costs, and effectively absorbing moisture in the hot air, so that the hot air sent back into the working chamber has low humidity, which helps to improve the drying effect of titanium concentrate, while preventing moisture from accumulating in the working chamber and causing damage to the equipment. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the multi-stage hot air circulation device for drying titanium concentrate according to this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the limiting box of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the moisture-absorbing plate of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the air diffuser hopper of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the PLC controller of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the placement plate of this utility model.

[0026] In the diagram, 1. Working box; 2. Drying mechanism; 21. Support plate; 22. Hot air generator; 23. Connecting frame; 24. Air inlet pipe; 25. Expansion duct; 26. Placement plate; 27. PLC controller; 3. Circulation mechanism; 31. Air outlet pipe; 32. Single-way solenoid valve; 33. Connecting pipe; 34. Limit box; 35. Moisture-absorbing plate; 36. Exhaust port; 37. Return pipe; 4. Insulation door; 5. Limit plate; 6. Slide rail; 7. Slider; 8. Heat insulation plate; 9. Handle; 10. Sealing ring; 11. Dust filter; 12. Moisture-absorbing cloth. Detailed Implementation

[0027] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-6 The present invention provides the following technical solution:

[0029] A multi-stage hot air circulation device for drying titanium concentrate includes a working box 1, a drying mechanism 2 fixedly connected to the right side of the working box 1, a circulation mechanism 3 fixedly connected to the left side of the working box 1, and an insulation door 4 rotatably connected to the front side of the working box 1.

[0030] The circulation mechanism 3 includes an exhaust pipe 31, a one-way solenoid valve 32, a connecting pipe 33, a limiting box 34, a moisture-absorbing plate 35, an exhaust port 36, and a return pipe 37. The exhaust pipe 31 is fixedly connected to the left side of the working box 1. The one-way solenoid valve 32 is installed on the left side of the exhaust pipe 31 and the top of the limiting box 34. The connecting pipe 33 is fixedly connected to the left side of the one-way solenoid valve 32. The limiting box 34 is fixedly connected to the rear side of the working box 1. The rear side of the connecting pipe 33 is fixedly connected to the bottom left side of the limiting box 34. The moisture-absorbing plate 35 is fixedly connected to the inside of the limiting box 34. The exhaust port 36 is opened on the rear side of the top of the limiting box 34. The return pipe 37 is fixedly connected to the front side of the one-way solenoid valve 32. The front side of the return pipe 37 passes through and extends to the inside of the working box 1.

[0031] In this embodiment: the working chamber 1 provides a closed space for drying titanium concentrate, effectively reducing heat loss and creating a stable environment for the drying process. It also supports and limits the drying mechanism 2 and the circulation mechanism 3. The insulating door 4 is rotatably connected to the front of the working chamber 1, used to open and close the working chamber 1, facilitating loading, unloading, and inspection and maintenance of the interior of the working chamber 1 by operators. The air outlet pipe 31 is used to draw hot air out of the working chamber 1, serving as the starting channel for hot air circulation. The single-way solenoid valve 32 controls the flow direction and circulation path of the hot air. The connecting pipe 33 transmits the hot air. The function is to ensure that hot air can smoothly enter the limiting box 34 for dehumidification. The limiting box 34 provides installation space for the moisture absorption plate 35 and centrally processes the hot air. There are three moisture absorption plates 35, which are evenly fixed and connected to the inside of the limiting box 34. The exhaust hole 36 is used to discharge excess moisture and a small amount of air after moisture absorption treatment, maintain air circulation in the limiting box 34, and ensure the moisture absorption effect of the moisture absorption plate 35. The return air pipe 37 sends the dehumidified hot air back into the working box 1, realizing the recycling of hot air, improving energy utilization, reducing drying costs, and reducing energy consumption and exhaust emissions.

[0032] Specifically, such as Figure 4 , Figure 5 As shown, the drying mechanism 2 includes a support plate 21, two hot air generators 22, a connecting frame 23, an air inlet pipe 24, an air expansion duct 25, a placement plate 26, and a PLC controller 27. The support plate 21 is fixedly connected to the bottom of the right side of the work box 1.

[0033] Specifically, such as Figure 4 , Figure 5As shown, the connecting frame 23 is fixedly connected to the top of the support plate 21, the bottom hot air generator 22 is fixedly connected to the inner side of the connecting frame 23, the top hot air generator 22 is fixedly connected to the top of the connecting frame 23, and the air inlet pipe 24 is fixedly connected to the left side of the hot air generator 22.

[0034] Specifically, such as Figure 4 , Figure 5 As shown, the left side of the bottom air inlet pipe 24 passes through the work box 1 and is fixedly connected to the bottom of the bottom air duct 25, and the left side of the top air inlet pipe 24 passes through the work box 1 and is fixedly connected to the bottom of the top air duct 25. The air duct 25 is fixedly connected to the top and bottom of the inner side of the work box 1, respectively. The placement plate 26 is slidably connected to the inner side of the work box 1, and the PLC controller 27 is installed on the front side of the door insulation 4.

[0035] In this embodiment: the support plate 21 serves to support the connecting frame 23 and the hot air generator 22. The hot air generator 22 generates hot air to provide the necessary heat for drying the titanium concentrate. The two hot air generators 22 can make the hot air act on the titanium concentrate from different directions, which improves the uniformity and efficiency of drying and ensures that the titanium concentrate is fully heated and dried in all parts. The connecting frame 23 is used to fix and support the hot air generator 22. The air inlet pipe 24 delivers the hot air generated by the hot air generator 22 into the working box 1. The air diffuser 25 is connected to the air inlet pipe 24 and can evenly diffuse the hot air delivered by the air inlet pipe 24, so that the hot air covers the titanium concentrate more widely and further improves the uniformity of drying. The placement plate 26 is slidably connected to the inside of the working box 1 for easy placement and removal of the titanium concentrate. The PLC controller 27 can automatically control the drying mechanism 2 and the single-way solenoid valve 32.

[0036] Specifically, such as Figure 6 As shown, limit plates 5 are fixedly connected to both sides of the inner side of the work box 1. A slide rail 6 is provided on the top of the limit plate 5. A slider 7 is fixedly connected to the rear side of the bottom of the placement plate 26. The slider 7 is slidably connected to the inner side of the slide rail 6.

[0037] Specifically, such as Figure 3 As shown, a moisture-absorbing cloth 12 is fixedly connected to the inner side of the moisture-absorbing plate 35. The moisture-absorbing cloth 12 is made of calcium chloride fiber material.

[0038] In this embodiment: By setting the limiting plate 5, the slide rail 6 and the placement plate 26 can be supported and limited. By setting the slide rail 6, which cooperates with the slider 7 at the bottom of the placement plate 26, the placement plate 26 can slide smoothly in the working box 1. By setting the slider 7, which cooperates with the slide rail 6, the sliding function of the placement plate 26 in the working box 1 is realized. By setting the moisture-absorbing cloth 12, the moisture in the hot air can be absorbed quickly and effectively. By setting the moisture-absorbing cloth 12 to be made of calcium chloride fiber material, calcium chloride fiber material has a strong moisture absorption capacity, can be reused, and can restore moisture absorption performance after being dried by hot air circulation, thus reducing operating costs.

[0039] Specifically, such as Figure 4 , Figure 5 As shown, a heat insulation board 8 is fixedly connected to the rear surface of the heat insulation door 4. The heat insulation board 8 is made of polystyrene foam plastic material. A handle 9 is fixedly connected to the front side of the heat insulation door 4. The surface of the handle 9 is engraved with anti-slip texture.

[0040] Specifically, such as Figure 6 As shown, the inner side of the placement plate 26 is configured as a filter mesh, and the surface of the placement plate 26 is coated with an anti-corrosion coating.

[0041] In this embodiment: by setting the heat insulation plate 8, heat loss inside the working chamber 1 can be reduced, thus lowering energy consumption. The heat insulation plate 8 is made of polystyrene foam, which has good heat insulation performance. The handle 9 facilitates the opening and closing of the heat insulation door 4 for the operator. The anti-slip texture increases the stability and comfort of the grip, improving operational safety. The inner side of the placement plate 26 is designed as a filter mesh, which facilitates the passage of hot air, allowing the titanium concentrate to fully contact the hot air and improving the drying effect. The anti-corrosion coating extends the service life of the placement plate 26 and prevents corrosion from the titanium concentrate and hot air during the drying process.

[0042] Specifically, such as Figure 2 As shown, a sealing ring 10 is fixedly connected to the rear side of the connecting pipe 33, and the side of the sealing ring 10 away from the connecting pipe 33 is fixedly connected to the left side of the limiting box 34.

[0043] Specifically, such as Figure 3 As shown, a dust filter 11 is fixedly connected to the inner side of the exhaust port 36, and the surface of the dust filter 11 is coated with an anti-corrosion coating.

[0044] In this embodiment: by setting a sealing ring 10, the sealing between the connecting pipe 33 and the limiting box 34 is ensured, preventing hot air leakage during transmission. By setting a dust filter 11, external debris can be effectively blocked from entering the limiting box 34, avoiding debris from affecting the moisture absorption effect of the moisture absorption plate 35 and the normal operation of the entire circulation system. By setting an anti-corrosion coating, its service life is enhanced, ensuring that the dust filter 11 can work stably for a long time in humid and corrosive gas environments.

[0045] Working Principle: First, the operator installs the working box 1 into the designated working position. After installation, the operator holds handle 9 and opens the insulated door 4. Then, the operator slowly pulls out the placement plate 26 along the slide rail 6 and evenly places the titanium concentrate to be dried on the surface of the placement plate 26. After proper placement, the operator slides the placement plate 26 back into the working box 1 along the slide rail 6. Next, the operator closes the insulated door 4 tightly to the working box 1 again using handle 9. Finally, the operator sets the required drying time for the titanium concentrate using the PLC controller 27. After completion, the operator uses the PLC controller 27 to start the two hot air generators 22. Once operational, the hot air generators 22 quickly generate hot air, which is then delivered through the air inlet pipe 24 to two air diffusers 25 located at the top and bottom of the inner side of the working chamber 1. The two air diffusers 25 evenly deliver hot air from both above and below to the titanium concentrate on the placement plate 26, performing comprehensive drying of the titanium concentrate. Simultaneously, the PLC controller 27 controls the opening of two single-way solenoid valves 32, respectively installed on the left side of the air outlet pipe 31 and at the top of the limit box 34. This ensures the hot air is in full contact with the titanium concentrate. During the process, the moisture on the surface of the titanium concentrate is removed, forming hot air containing water vapor. Guided by the exhaust pipe 31 and connecting pipe 33, this hot air enters the limiting box 34. Upon entering the limiting box 34, the hot air rises due to its upward characteristic and comes into full contact with the three moisture-absorbing plates 35 inside the limiting box 34. The moisture-absorbing cloth 12 inside the moisture-absorbing plates 35 efficiently absorbs the water vapor contained in the hot air, effectively drying it. The dried hot air, guided by the return pipe 37, re-enters the working box 1 to continue drying the titanium concentrate inside the working box 1. The temperature inside the working chamber 1 is increased in one step to promote the continuous drying process. At the same time, during the hot air circulation, the heat carried by the air itself will continuously dry and dehumidify the absorbent cloth 12, so that the absorbent cloth 12 can restore its moisture absorption performance and be reused. Finally, when the PLC controller 27 detects that the preset drying time has been reached, it will turn off the hot air generator 22 and the single-way solenoid valve 32. At this time, the operator will hold the handle 9 again, open the insulation door 4, slide the placement plate 26 out of the working chamber 1 along the slide rail 6, and take out the dried titanium concentrate. This completes the entire drying operation process.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage hot air circulation device for drying titanium concentrate, comprising a working box (1), characterized in that: A drying mechanism (2) is fixedly connected to the right side of the working box (1), a circulation mechanism (3) is fixedly connected to the left side of the working box (1), and an insulated door (4) is rotatably connected to the front side of the working box (1). The circulation mechanism (3) includes an exhaust pipe (31), a one-way solenoid valve (32), a connecting pipe (33), a limiting box (34), a moisture-absorbing plate (35), an exhaust port (36), and a return pipe (37). The exhaust pipe (31) is fixedly connected to the left side of the working box (1). The one-way solenoid valve (32) is installed on the left side of the exhaust pipe (31) and the top of the limiting box (34). The connecting pipe (33) is fixedly connected to the left side of the one-way solenoid valve (32). The limiting box (34) is fixedly connected to the rear side of the working box (1), the rear side of the connecting pipe (33) is fixedly connected to the bottom left side of the limiting box (34), the moisture-absorbing plate (35) is fixedly connected to the inner side of the limiting box (34), the exhaust hole (36) is opened on the rear side of the top of the limiting box (34), the return air pipe (37) is fixedly connected to the front side of the single-way solenoid valve (32), and the front side of the return air pipe (37) penetrates and extends to the inner side of the working box (1).

2. A multi-stage hot air circulation device for drying of titanium concentrate according to claim 1, characterized in that: The drying mechanism (2) includes a support plate (21), two hot air generators (22), a connecting frame (23), an air inlet pipe (24), an air expansion hopper (25), a placement plate (26), and a PLC controller (27). The support plate (21) is fixedly connected to the bottom of the right side of the work box (1).

3. A multi-stage hot air circulation device for drying of titanium concentrate as claimed in claim 2, wherein: The connecting frame (23) is fixedly connected to the top of the support plate (21), the bottom hot air generator (22) is fixedly connected to the inside of the connecting frame (23), the top hot air generator (22) is fixedly connected to the top of the connecting frame (23), and the air inlet pipe (24) is fixedly connected to the left side of the hot air generator (22).

4. A multi-stage hot air circulation device for drying of titanium concentrate as claimed in claim 2, wherein: The left side of the bottom air inlet pipe (24) passes through the work box (1) and is fixedly connected to the bottom of the bottom air duct (25). The left side of the top air inlet pipe (24) passes through the work box (1) and is fixedly connected to the bottom of the top air duct (25). The air duct (25) is fixedly connected to the top and bottom of the inner side of the work box (1). The placement plate (26) is slidably connected to the inner side of the work box (1). The PLC controller (27) is installed on the front side of the door insulation (4).

5. A multi-stage hot air circulation device for drying of titanium concentrate as claimed in claim 2, wherein: Limiting plates (5) are fixedly connected to both sides of the inner side of the work box (1). A slide rail (6) is provided on the top of the limiting plate (5). A slider (7) is fixedly connected to the rear side of the bottom of the placement plate (26). The slider (7) is slidably connected to the inner side of the slide rail (6).

6. A multi-stage hot air circulation device for drying of titanium concentrate as claimed in claim 1, wherein: A moisture-absorbing cloth (12) is fixedly connected to the inner side of the moisture-absorbing plate (35), and the moisture-absorbing cloth (12) is made of calcium chloride fiber material.

7. A multi-stage hot air circulation device for drying of titanium concentrate as claimed in claim 1, wherein: A heat insulation board (8) is fixedly connected to the rear surface of the insulated door (4). The heat insulation board (8) is made of polystyrene foam plastic material. A handle (9) is fixedly connected to the front side of the insulated door (4). The surface of the handle (9) is engraved with anti-slip texture.

8. A multi-stage hot air circulation device for drying of titanium concentrate as claimed in claim 2, wherein: The inner side of the placement plate (26) is made into a filter mesh, and the surface of the placement plate (26) is coated with an anti-corrosion coating.

9. A multi-stage hot air circulation device for drying of titanium concentrate according to claim 1, characterized in that: A sealing ring (10) is fixedly connected to the rear side of the connecting pipe (33), and the side of the sealing ring (10) away from the connecting pipe (33) is fixedly connected to the left side of the limiting box (34).

10. A multi-stage hot air circulation device for drying of titanium concentrate according to claim 1, characterized in that: A dust filter (11) is fixedly connected to the inner side of the exhaust hole (36), and the surface of the dust filter (11) is coated with an anti-corrosion coating.

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