High titanium slag smelting heat energy recovery device

Abstract

The utility model relates to the field of high titanium slag smelting, in particular to a high titanium slag smelting heat energy recovery device which comprises a furnace body and further comprises an inner shell, an air supply pipe, a first preheating mechanism and a second preheating mechanism, the inner shell is installed at the top end of the furnace body, the air supply pipe is installed on one side of the bottom end of the furnace body, and the first preheating mechanism is installed on the outer side of the inner shell. The first preheating mechanism comprises an outer shell, an air inlet assembly and a plurality of mixing assemblies, the second preheating mechanism is located on one side of the furnace body and comprises a preheating box, a conveying assembly and a heating assembly, and the first preheating mechanism and the second preheating mechanism are combined, so that the device can recycle heat generated in the smelting process; raw materials and external gas needed by smelting are preheated, waste heat can be utilized to the maximum extent, the heat energy utilization rate is increased, and the effect of saving power consumption is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high titanium slag smelting field, specifically a kind of high titanium slag smelting heat recovery device. BACKGROUND

[0002] High titanium slag is the titanium ore enrichment object formed by physical production process, commonly known as high titanium slag smelting can improve the content of titanium dioxide, and obtain more pure titanium product.

[0003] The existing smelting furnace cannot recycle the heat generated during smelting process, resulting in heat loss, and cannot realize heat reutilization, reducing the heat utilization rate of smelting furnace. In the high titanium slag smelting process, raw materials and external gas need to be continuously supplemented. Since the temperature of raw materials and external gas is relatively low compared to the internal temperature of smelting furnace, the low-temperature raw materials and external gas directly entering the internal part of smelting furnace will cause the internal temperature of smelting furnace to decrease, thereby causing smelting efficiency. SUMMARY

[0004] The purpose of the utility model is to provide a kind of high titanium slag smelting heat recovery device, to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A kind of high titanium slag smelting heat recovery device, including furnace body, further including inner shell, gas supply pipe, first preheating mechanism and second preheating mechanism, inner shell is installed at the top end of furnace body, gas supply pipe is installed at the bottom end of furnace body one side;

[0007] First preheating mechanism is installed at the outside of inner shell, first preheating mechanism includes outer shell, gas inlet assembly and multiple mixing assemblies, outer shell is sleeved at the outside of inner shell, preheating cavity is formed between outer shell and inner shell, multiple mixing assemblies are installed at the inside of preheating cavity in ring shape equidistantly, gas inlet assembly is located at one side of outer shell;

[0008] Second preheating mechanism is located at one side of furnace body, second preheating mechanism includes preheating box, conveying assembly and heating assembly, preheating box is fixed at one side of furnace body, conveying assembly is located between preheating box and gas supply pipe, heating assembly is located between preheating box and outer shell.

[0009] As a further scheme of the utility model: one side of outer shell is fixed with purification box, the top end one side of furnace body is connected with discharge pipe, the other end of discharge pipe is connected with the gas inlet end of purification box.

[0010] As a further scheme of the utility model: the air inlet assembly includes connecting pipe, annular pipe and multiple shunt pipes, the annular pipe is fixed to the outer wall of the outer shell, one end of the connecting pipe is connected with the annular pipe, the other end of the connecting pipe is connected with the air outlet end of the purification box, the multiple shunt pipes are equidistantly installed below the annular pipe, and the other end of each shunt pipe penetrates the outer shell and extends into the inside of the preheating cavity.

[0011] As a further scheme of the utility model: each mixing assembly includes rotating rod, support rod and multiple blades, the support rod is located on the inner wall of the preheating cavity and is fixed to the outer wall of the inner shell, one end of the rotating rod is rotationally arranged on the inner wall of the outer shell, the other end of the rotating rod is rotationally arranged on the support rod, and the multiple blades are equidistantly fixed to the surface of the rotating rod.

[0012] As a further scheme of the utility model: the heating mechanism includes conveying pipe and spiral pipe, the conveying pipe is located at the top end of the preheating box, one end of the conveying pipe penetrates the outer shell and is connected with the top of the preheating cavity, the spiral pipe is installed in the inside of the preheating box, one end of the spiral pipe is connected with the end of the conveying pipe away from the preheating cavity, and the other end of the spiral pipe extends out of the preheating box.

[0013] As a further scheme of the utility model: the conveying assembly includes air pump and air inlet pipe, the air inlet pipe is installed on one side of the preheating box, the air pump is installed on one side of the preheating box, the input end of the air pump is in communication with the inside of the preheating box, and the output end of the air pump is connected with the end of the air conveying pipe away from the furnace body.

[0014] As a further scheme of the utility model: the outer shell and the spiral pipe are made of heat-conducting materials.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、The high-titanium slag smelting heat energy recovery device disclosed by the utility model, through the first preheating mechanism, the heat generated in the smelting process can enter the inside of the preheating cavity to heat the water in the inside of the preheating cavity, so that the temperature of the water in the inside of the preheating cavity rises, thereby realizing the preheating of the raw materials in the inside of the inner shell, a part of the heat generated in the smelting process can be recycled and utilized, the heat utilization rate is improved, and meanwhile, the problem that the temperature of the raw materials in the inside of the inner shell is low, the temperature in the inside of the furnace body is reduced after the raw materials enter the inside of the furnace body, and the smelting efficiency is affected can be avoided.

[0017] 2. The high-titanium slag smelting heat energy recovery device, through the setting of the second preheating mechanism, the hot gas passing through the preheating cavity and the water vapor generated by the water heating in the preheating cavity can enter the inside of the spiral pipe through the conveying pipe, at this time, the spiral pipe can preheat the external gas entering the inside of the preheating box, so that the temperature of the external gas entering the inside of the furnace body can be improved, on the one hand, the heat generated during smelting can be recycled again, the heat utilization rate is further improved, and at the same time, the problem that the external gas temperature is relatively low and the internal temperature of the furnace body is reduced after entering the inside of the furnace body, thereby affecting the smelting efficiency can be avoided.

[0018] 3. The high-titanium slag smelting heat energy recovery device combines the first preheating mechanism and the second preheating mechanism, so that the device can recycle and utilize the heat generated during smelting, preheat the raw materials and the external gas required for smelting, maximize the utilization of waste heat, improve the heat energy utilization rate, and achieve the effect of saving power consumption. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure of the utility model Figure 1 .

[0020] Figure 2 The structure of the utility model Figure 2 .

[0021] Figure 3 It is the cut surface structure schematic view of the shell body and the inner shell body in the utility model.

[0022] Figure 4 It is the enlarged structure schematic view of part A in the utility model Figure 3 .

[0023] Figure 5 It is the sectional view of the shell body and the inner shell body in the utility model.

[0024] Figure 6 It is the split structure schematic view of the preheating box in the utility model.

[0025] Wherein: 11, furnace body; 12, shell body; 13, inner shell body; 14, preheating cavity; 15, purification box; 16, discharge pipe; 17, connecting pipe; 18, annular pipe; 19, shunt pipe; 20, conveying pipe; 21, spiral pipe; 22, preheating box; 23, gas pump; 24, air inlet pipe; 25, gas delivery pipe; 26, rotating rod; 27, blade; 28, support rod; 29, first mounting plate; 30, second mounting plate. DETAILED DESCRIPTION

[0026] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and are not used to limit the scope of the utility model.

[0027] The utility model provides the following preferred embodiment:

[0028] Embodiment one, as Figures 1-6 Shown, a high titanium slag smelting heat recovery device, including furnace body 11, still include inner housing 13, send gas pipe 25, first preheating mechanism and second preheating mechanism, inner housing 13 installs at the top end of furnace body 11, send gas pipe 25 installs at the bottom end one side of furnace body 11;

[0029] First preheating mechanism installs at the outside of inner housing 13, and first preheating mechanism includes outer housing 12, gas inlet subassembly and multiple mixing subassembly, and outer housing 12 is sleeved in the outside of inner housing 13, and preheating chamber 14 is formed between outer housing 12 and inner housing 13, specifically, preheating chamber 14's inside prestorage has the water of appropriate amount, and multiple mixing subassembly is annular equidistance and installs in the inside of preheating chamber 14, and gas inlet subassembly is located at one side of outer housing 12;

[0030] Through setting first preheating mechanism, the heat generated in the smelting process can enter the inside of preheating chamber 14 to heat the water in the inside of preheating chamber 14, so that the temperature of the water in the inside of preheating chamber 14 rises, thereby the preheating of the raw materials in the inside of inner housing 13 can be realized, a part of the heat generated in the smelting process can be recycled and utilized, the heat utilization rate is improved, and meanwhile the problem that the temperature of the raw materials in the inside of inner housing 13 is low, after the raw materials enter the inside of furnace body 11, the temperature in the inside of furnace body 11 is reduced, and the smelting efficiency is affected can be avoided;

[0031] Second preheating mechanism is located at one side of furnace body 11, and second preheating mechanism includes preheating box 22, conveying assembly and heating assembly, and preheating box 22 is fixed at one side of furnace body 11, specifically, a plurality of second mounting plates 30 are fixed on the outside of furnace body 11, and preheating box 22 is installed at the end, away from furnace body 11, of a plurality of second mounting plates 30, conveying assembly is located between preheating box 22 and send gas pipe 25, and heating assembly is located between preheating box 22 and outer housing 12, and conveying assembly is used to convey the external gas needed for smelting to send gas pipe 25, and then the external gas is conveyed to furnace body 11 by send gas pipe 25;

[0032] Through setting second preheating mechanism, the hot gas passing through preheating chamber 14 and the water vapor generated by the water in preheating chamber 14 can enter the inside of spiral pipe 21 through conveying pipe 20, at this time, the external gas entering the inside of preheating box 22 can be preheated by spiral pipe 21, so that the temperature of the external gas entering the inside of furnace body 11 can be improved, on the one hand, the heat generated in the smelting can be recycled again, the heat utilization rate is further improved, and meanwhile the problem that the temperature of the external gas is low, after the external gas enters the inside of furnace body 11, the temperature in the inside of furnace body 11 is reduced, and the smelting efficiency is affected can be avoided.

[0033] AsFigures 1-6 As shown in the figure, the side of the outer shell 12 is fixed with a purification box 15, and the top end of the furnace body 11 is connected with a discharge pipe 16, the other end of the discharge pipe 16 is connected with the air inlet end of the purification box 15, specifically, the surface of the outer shell 12 is fixed with a plurality of first mounting plates 29, and the purification box 15 is installed on the side away from the outer shell 12 of the plurality of first mounting plates 29;

[0034] The hot gas generated by smelting inside the furnace body 11 can enter the inside of the discharge pipe 16 for purification through the purification box 15, and the gas purified by the purification box 15 can enter the air inlet assembly;

[0035] The purification box 15 is mainly used for removing harmful gases generated in smelting, and the purification box 15 is a prior art, which will not be described in detail here.

[0036] As shown in the figure, Figures 1-6 The air inlet assembly includes a connecting pipe 17, an annular pipe 18 and a plurality of shunt pipes 19, the annular pipe 18 is fixed to the outer wall of the outer shell 12, specifically, the outer wall of the outer shell 12 is fixed with a plurality of pipe clamps for fixing the annular pipe 18, one end of the connecting pipe 17 is connected with the annular pipe 18, the other end of the connecting pipe 17 is connected with the air outlet end of the purification box 15, and the plurality of shunt pipes 19 are installed equidistantly below the annular pipe 18, the other end of each shunt pipe 19 penetrates the outer shell 12 and extends into the inside of the preheating cavity 14;

[0037] The hot gas purified by the purification box 15 can enter the inside of the preheating cavity 14 through the connecting pipe 17, the annular pipe 18 and the plurality of shunt pipes 19, and the hot gas can heat the water inside the preheating cavity 14, so that the water temperature increases, thereby preheating the high-titanium slag inside the inner shell 13, realizing waste heat utilization.

[0038] As shown in the figure, Figures 1-6 Each mixing assembly includes a rotating rod 26, a support rod 28 and a plurality of blades 27, the support rod 28 is located on the inner wall of the preheating cavity 14 and is fixed to the outer wall of the inner shell 13, one end of the rotating rod 26 is rotatably arranged on the inner wall of the outer shell 12, the other end of the rotating rod 26 is rotatably arranged on the support rod 28, and the plurality of blades 27 are equidistantly fixed on the surface of the rotating rod 26;

[0039] Specifically, each mixing assembly is located on one side of a shunt pipe 19, when the gas enters the inside of the preheating cavity 14 through the shunt pipe 19, the shunt pipe 19 first contacts one of the blades 27 on the rotating rod 26 and pushes the blade 27 to rotate, so that the rotating rod 26 can rotate below the support rod 28, so that the plurality of blades 27 can rotate synchronously, thereby stirring the water inside the preheating cavity 14, the hot gas can also ensure that the water can be uniformly heated while heating the water, and the preheating effect of the high-titanium slag inside the inner shell 13 is ensured.

[0040] AsFigures 1-6 As shown, the heating mechanism includes a conveying pipe 20 and a spiral pipe 21. The conveying pipe 20 is located at the top of the preheating box 22. One end of the conveying pipe 20 passes through the outer shell 12 and is connected to the top of the preheating cavity 14. The spiral pipe 21 is installed inside the preheating box 22. One end of the spiral pipe 21 is connected to the end of the conveying pipe 20 away from the preheating cavity 14, and the other end of the spiral pipe 21 extends out of the preheating box 22.

[0041] The gas inside the preheating chamber 14 and the water vapor generated after heating the water cup enter the spiral tube 21 through the delivery pipe 20, which can preheat the external gas inside the preheating box 22 and recover the heat generated by smelting, further improving the heat utilization rate.

[0042] By setting up the spiral tube 21, the contact area between the spiral tube 21 and the external gas inside the preheating box 22 can be increased, thereby improving the preheating effect on the external gas.

[0043] like Figures 1-6 As shown, the conveying assembly includes an air pump 23 and an air inlet pipe 24. The air inlet pipe 24 is installed on one side of the preheating box 22, and the air pump 23 is installed on one side of the preheating box 22. The input end of the air pump 23 is connected to the interior of the preheating box 22, and the output end of the air pump 23 is connected to the end of the air supply pipe 25 away from the furnace body 11.

[0044] During the smelting process, when it is necessary to supply gas into the furnace body 11, the controller controls the gas pump 23 to work. At this time, the outside gas enters the preheating box 22 through the gas inlet pipe 24. The gas inside the preheating box 22 comes into contact with the spiral tube 21 and is preheated. Then the preheated gas enters the furnace body 11 through the gas delivery pipe 25. This can avoid the problem that the temperature inside the furnace body 11 will drop after the outside gas temperature is low and the smelting efficiency will be affected.

[0045] Therefore, by combining the first preheating mechanism and the second preheating mechanism, this device can recover and utilize the heat generated during the smelting process, preheat the raw materials and the external gases required for smelting, maximize the utilization of waste heat, improve the thermal energy utilization rate, and achieve the effect of saving electricity consumption.

[0046] like Figures 1-6 As shown, both the outer shell 12 and the spiral tube 21 are made of thermally conductive materials, which can further improve the utilization rate of heat and further improve the preheating effect on raw materials and external gases.

[0047] The beneficial effects of this utility model are specifically reflected in the fact that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high titanium slag smelting heat energy recovery device, comprising a furnace body (11), characterized in that, The first preheating mechanism is installed outside the inner shell (13), and the first preheating mechanism comprises an outer shell (12), an air inlet assembly and a plurality of mixing assemblies, the outer shell (12) is sleeved outside the inner shell (13), a preheating cavity (14) is formed between the outer shell (12) and the inner shell (13), the plurality of mixing assemblies are installed equidistantly inside the preheating cavity (14) in a ring shape, and the air inlet assembly is located on one side of the outer shell (12). The second preheating mechanism is located on one side of the furnace body (11), and the second preheating mechanism comprises a preheating box (22), a conveying assembly and a heating assembly, the preheating box (22) is fixed to one side of the furnace body (11), the conveying assembly is located between the preheating box (22) and the air conveying pipe (25), and the heating assembly is located between the preheating box (22) and the outer shell (12). The outer shell (12) is integrally fixed with a purification box (15), one side of the top end of the furnace body (11) is connected with a discharge pipe (16), and the other end of the discharge pipe (16) is connected with an air inlet end of the purification box (15).

2. The high titania slag smelting heat recovery device according to claim 1, characterized in that, The air inlet assembly comprises a connecting pipe (17), a ring-shaped pipe (18) and a plurality of shunt pipes (19), the ring-shaped pipe (18) is fixed to the outer wall of the outer shell (12), one end of the connecting pipe (17) is connected with the ring-shaped pipe (18), the other end of the connecting pipe (17) is connected with an air outlet end of the purification box (15), and the plurality of shunt pipes (19) are installed equidistantly below the ring-shaped pipe (18), and the other end of each shunt pipe (19) penetrates through the outer shell (12) and extends into the inside of the preheating cavity (14).

3. The high titania slag smelting heat recovery device according to claim 2, characterized in that, Each mixing assembly comprises a rotating rod (26), a support rod (28) and a plurality of blades (27), the support rod (28) is located on the inner wall of the preheating cavity (14) and is fixed to the outer wall of the inner shell (13), one end of the rotating rod (26) is rotationally arranged on the inner wall of the outer shell (12), the other end of the rotating rod (26) is rotationally arranged on the support rod (28), and the plurality of blades (27) are fixed equidistantly on the surface of the rotating rod (26).

4. The high titania slag smelting heat recovery device according to claim 3, characterized in that, The heating mechanism comprises a conveying pipe (20) and a spiral pipe (21), the conveying pipe (20) is located at the top end of the preheating box (22), one end of the conveying pipe (20) penetrates through the outer shell (12) and is connected with the top of the preheating cavity (14), the spiral pipe (21) is installed inside the preheating box (22), one end of the spiral pipe (21) is connected with the end of the conveying pipe (20) away from the preheating cavity (14), and the other end of the spiral pipe (21) extends out of the preheating box (22).

5. The high titania slag smelting heat recovery device according to claim 4, characterized in that, The conveying assembly comprises an air pump (23) and an air inlet pipe (24), the air inlet pipe (24) is installed on one side of the preheating box (22), the air pump (23) is installed on one side of the preheating box (22), an input end of the air pump (23) is in communication with the inside of the preheating box (22), and an output end of the air pump (23) is connected with the end of the air conveying pipe (25) away from the furnace body (11).

6. The high titania slag smelting heat recovery device according to claim 5, characterized in that, The outer shell (12) and the spiral pipe (21) are both made of heat-conducting materials.

7. The high titania slag smelting heat recovery device according to claim 6, characterized in that, ​

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