Rock wool production smelting furnace slag recycling device

Abstract

The utility model discloses a rock wool production smelting furnace slag recycling device, which comprises a device main body, a crushing chamber, a crushing cutter, a waste heat recovery cover and a spiral pipe, the crushing chamber is arranged at the top of the device main body, the crushing cutter is arranged in the crushing chamber through a bearing, a hopper is fixed above the device main body, and the waste heat recovery cover is arranged in the hopper. The waste heat recovery cover is fixed to the outer wall of the device body at the position of the crushing chamber, heat insulation cotton adheres to the inner wall of the waste heat recovery cover, the spiral pipe is installed on the outer wall of the device body on the inner side of the waste heat recovery cover, an air purification chamber is arranged in the device body below the crushing chamber, and a purification chamber is arranged in the device body on one side of the air purification chamber. According to the slag waste heat recovery device, slag waste heat can be fully recovered, waste of heat energy is reduced, slag dust can be purified, the purification effect is good, dust flying during slag crushing can be reduced, and pollution to the external environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rock wool production, in particular to a slag circulation recovery device for a smelting furnace in rock wool production. Background Art

[0002] Rock wool, also known as mineral wool, is a building insulation material made based on the capillary structure of natural basalt minerals. It is made by melting mineral fibers at high temperatures, adding an appropriate amount of binder and water, and then curing them at high speeds by centrifugation and high temperatures. Rock wool has excellent fire resistance, sound insulation, sound absorption and thermal insulation properties. It is a very popular environmentally friendly building material in the current construction industry. Rock wool production requires smelting in a smelting furnace. During the smelting process of rock wool, slag will inevitably be produced. Rock wool slag can be recycled, so a recycling device is needed.

[0003] The Chinese patent with the publication number CN209857658U discloses a slag recovery device for a smelting furnace used in rock wool production, including a device body, a magnetic motor is provided on the top of the device body, a rotating shaft is provided at the bottom of the coupling, a transmission channel is provided at the center of the fixed baffle, a material buffer trough is provided at the bottom of the transmission channel, material blocking racks are provided on both sides of the material buffer trough, a material guide pipe is provided at the center of the device body, a material receiving trough is provided at the bottom of the material guide pipe, and a thermal insulation layer is provided on both sides of the device body; a reinforcing gasket is sleeved and fixed on the outside of the bottom of the fixed hammer rod, and a crushing hammer is fixed on both sides of the fixed hammer rod by fastening buckles; an air guide plate is fixed to the right side of the filter screen by a buckle, an air guide pump is welded and fixed to the left side of the filter mechanism, and the air supply pipe is rotatably connected to the air guide pump.

[0004] Although the above-mentioned recovery device can crush the slag, since the slag contains waste heat, the slag will release heat during the crushing process. The device cannot recycle the waste heat, resulting in a waste of heat energy, and therefore urgently needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a slag circulation recovery device for a rock wool production smelting furnace to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slag recycling device for a rock wool production smelting furnace, comprising a device body, a crushing chamber, a crushing knife, a waste heat recovery cover and a spiral pipe, wherein the crushing chamber is arranged at the top of the device body, the crushing knife is installed inside the crushing chamber through a bearing, a rotating drive member is installed at the top of the device body, and the output end of the rotating drive member extends to the inside of the crushing chamber and is fixedly connected to the top of the crushing knife, a hopper is fixed above the device body, and the hopper is connected to the crushing chamber through a feeding pipe, and the waste heat recovery cover is fixed at the position of the crushing chamber The spiral tube is installed on the outer wall of the device body at the location, and the inner wall of the waste heat recovery cover is adhered with heat insulation cotton, the spiral tube is installed on the outer wall of the device body inside the waste heat recovery cover, a clean air chamber is arranged inside the device body below the crushing chamber, and the clean air chamber is communicated with the crushing chamber, a purification chamber is arranged inside the device body on one side of the clean air chamber, and the purification chamber is communicated with the clean air chamber, positioning seats are fixed on the inner walls of the top and bottom of the purification chamber, and high-density fiber filter plates are clamped between the positioning seats, an induced draft fan is arranged on one side of the device body, and the input end of the induced draft fan is communicated with the purification chamber through a pipeline.

[0007] Preferably, a recovery box is fixed on the other side of the device body, and the recovery box is connected to the clean air chamber. A recovery box is provided at the bottom of the recovery box, and one end of the recovery box extends to the outside of the recovery box and is fixed with a sealing plate to facilitate the collection of slag.

[0008] Preferably, the interior of the clean air chamber is fixed with equally spaced inclined guide plates, which extend the rolling path of the slag and make the clean air more complete.

[0009] Preferably, an inspection door is installed on the outer wall of the device body at the location of the purification chamber to facilitate the removal, cleaning or replacement of the high-density fiber filter plate.

[0010] Preferably, fixed knives with equal intervals are fixed on the inner wall of the crushing chamber, and the fixed knives cooperate with the crushing knives to achieve a good crushing effect on the slag.

[0011] Preferably, hinge shafts are fixed on both side walls of the hopper top to assist in the flipping of the dust cover.

[0012] Preferably, a dust cover is provided at the top of the hopper, and one end of the dust cover is hinged to the hinge shaft through a support seat, so as to facilitate sealing of the hopper and reduce dust pollution.

[0013] Preferably, a water inlet pipe is installed on the outer wall of the top of the waste heat recovery cover, and a water outlet pipe is installed on the outer wall of the bottom of the waste heat recovery cover, and one end of the water inlet pipe and the water outlet pipe both extend to the interior of the waste heat recovery cover and are respectively connected to the top and bottom ends of the spiral tube for the introduction of cold water and the export of hot water.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the slag recycling and recovery device for the rock wool production smelting furnace can not only fully recover the slag waste heat, reduce the waste of heat energy, purify the slag dust with good purification effect, but also reduce the flying of dust when the slag is crushed, reducing the pollution to the external environment;

[0015] (1) A waste heat recovery cover, a spiral tube, heat insulation cotton, a water inlet pipe, and a water outlet pipe are provided. The valve on the water inlet pipe is opened, the external water pipe is connected to the water inlet pipe, and external cold water is introduced into the spiral tube inside the waste heat recovery cover. When the cold water flows inside the spiral tube, it absorbs the heat of the slag inside the crushing chamber and recovers the waste heat of the slag. The setting of the heat insulation cotton can block the heat transfer between the spiral tube and the external environment, reducing heat loss. The valve on the water outlet pipe is opened, so that the hot water after absorbing heat is discharged through the water outlet pipe for people to use. This design can fully recover the waste heat of the slag, thereby reducing the waste of heat energy;

[0016] (2) By providing a clean air chamber, an inclined guide plate, a purification chamber, a positioning seat, a high-density fiber filter plate, and an inspection door, the crushed slag falls onto the surface of the inclined guide plate inside the clean air chamber, and the slag rolls on the surface of the inclined guide plate from top to bottom until it is discharged into the recovery box inside the recovery box. The setting of the inclined guide plate extends the rolling path of the slag. During this process, the induced draft fan is started so that the dust inside the clean air chamber is sucked into the purification chamber, and the high-density fiber filter plate filters the dust. The high-density fiber filter plate has a good filtering effect, so that the slag dust can be purified, and the purification effect is good. Moreover, the inspection door can be opened to pull the high-density fiber filter plate out of the positioning seat so that the high-density fiber filter plate can be cleaned or replaced to ensure its filtering effect;

[0017] (3) By providing a hopper, a dust cover, a support seat, and a hinge shaft, the slag is added into the main body of the device through the hopper and the discharge pipe, and then the dust cover is flipped over to allow the support seat to rotate around the hinge shaft. The dust cover is covered on the top of the hopper to seal the hopper, thereby reducing dust flying when the slag is crushed and reducing pollution to the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0019] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 This is a front view of the structure of the utility model;

[0021] Figure 4This is a schematic diagram of the enlarged structure of the hopper of the utility model;

[0022] Figure 5 For the utility model Figure 4 Enlarged structural diagram at B in the middle.

[0023] In the figure: 1. Device body; 2. Clean air chamber; 3. Purification chamber; 4. Positioning seat; 5. High-density fiber filter plate; 6. Induced draft fan; 7. Crushing chamber; 8. Crushing knife; 9. Fixed knife; 10. Water inlet pipe; 11. Rotating drive member; 12. Hopper; 13. Feeding pipe; 14. Waste heat recovery cover; 15. Inclined guide plate; 16. Recovery box; 17. Recovery box; 18. Sealing plate; 19. Spiral tube; 20. Insulation cotton; 21. Water outlet pipe; 22. Inspection door; 23. Dust cover; 24. Support seat; 25. Articulated shaft. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0025] See also Figure 1-5 , the utility model provides an embodiment: a slag recycling device for a rock wool production smelting furnace, comprising a device body 1, a crushing chamber 7, a crushing knife 8, a waste heat recovery cover 14 and a spiral tube 19, the crushing chamber 7 is arranged at the top of the device body 1, the crushing knife 8 is installed inside the crushing chamber 7 through a bearing, a rotating driving member 11 is installed at the top of the device body 1, and the output end of the rotating driving member 11 extends to the inside of the crushing chamber 7 and is fixedly connected to the top of the crushing knife 8, a hopper 12 is fixed above the device body 1, and the hopper 12 is connected to the crushing chamber 7 through a feeding pipe 13, a waste heat recovery cover 14 is fixed on the outer wall of the device body 1 at the position of the crushing chamber 7, and the inner wall of the waste heat recovery cover 14 is adhered with heat insulation cotton 20, and the spiral tube 19 is installed on the outer wall of the device body 1 inside the waste heat recovery cover 14;

[0026] A clean air chamber 2 is provided inside the device body 1 below the crushing chamber 7, and the clean air chamber 2 is communicated with the crushing chamber 7. A purification chamber 3 is provided inside the device body 1 on one side of the clean air chamber 2, and the purification chamber 3 is communicated with the clean air chamber 2. Positioning seats 4 are fixed on the inner walls of the top and bottom of the purification chamber 3, and high-density fiber filter plates 5 are clamped between the positioning seats 4. An induced draft fan 6 is provided on one side of the device body 1, and the input end of the induced draft fan 6 is communicated with the purification chamber 3 through a pipeline.

[0027] A recovery box 16 is fixed on the other side of the device body 1, and the recovery box 16 is connected to the clean air chamber 2. A recovery box 17 is arranged at the bottom of the recovery box 16, and one end of the recovery box 17 extends to the outside of the recovery box 16 and is fixed with a sealing plate 18, so as to facilitate the collection of slag;

[0028] The interior of the clean air chamber 2 is fixed with inclined guide plates 15 at equal intervals, which prolongs the rolling path of the slag and makes the clean air more complete;

[0029] An inspection door 22 is installed on the outer wall of the device body 1 at the location of the purification chamber 3, so as to facilitate the removal of the high-density fiber filter plate 5 for cleaning or replacement;

[0030] The inner wall of the crushing chamber 7 is fixed with fixed knives 9 at equal intervals, and the fixed knives 9 cooperate with the crushing knives 8 to achieve a good crushing effect on the slag;

[0031] A hinge shaft 25 is fixed on both side walls of the top of the hopper 12 to assist the turning of the dust cover 23;

[0032] A dust cover 23 is provided at the top of the hopper 12, and one end of the dust cover 23 is hinged to the hinge shaft 25 through a support seat 24, so as to seal the hopper 12 and reduce dust pollution;

[0033] A water inlet pipe 10 is installed on the outer wall of the top of the waste heat recovery cover 14, and a water outlet pipe 21 is installed on the outer wall of the bottom of the waste heat recovery cover 14, and one end of the water inlet pipe 10 and the water outlet pipe 21 both extend into the interior of the waste heat recovery cover 14 and are respectively connected to the top and bottom ends of the spiral tube 19 for the introduction of cold water and the export of hot water.

[0034] When the embodiment of the present application is in use: first, pour the slag in the rock wool production smelting furnace into the hopper 12, and the slag falls into the crushing chamber 7 on the top of the device body 1 through the discharge pipe 13. Secondly, flip the dust cover 23 to make the support seat 24 rotate around the hinge shaft 25, and cover the dust cover 23 on the top of the hopper 12, so that the hopper 12 can be sealed, reducing the dust flying when the slag is crushed, and reducing the pollution to the external environment. Then, start the rotating drive member 11 to drive the crushing knife 8 to rotate. Under the action of the crushing knife 8 and the fixed knife 9, the slag is fully crushed. In this process, the valve on the water inlet pipe 10 is opened. , connect the external water pipe to the water inlet pipe 10, and guide the external cold water into the spiral pipe 19 inside the waste heat recovery cover 14. When the cold water flows inside the spiral pipe 19, it absorbs the heat of the slag inside the crushing chamber 7 and recovers the waste heat of the slag. The setting of the heat insulation cotton 20 can block the heat transfer between the spiral pipe 19 and the external environment, reduce heat loss, and open the valve on the outlet pipe 21 so that the hot water after absorbing heat can be discharged through the outlet pipe 21 for people to use. This design can fully recover the waste heat of the slag, thereby reducing the waste of heat energy. Then, the crushed slag falls to the surface of the inclined guide plate 15 inside the clean air chamber 2. Refer to the attached Figure 1 The slag rolls on the surface of the inclined guide plate 15 and rolls from top to bottom until it is discharged into the recovery box 17 inside the recovery box 16. The setting of the inclined guide plate 15 extends the rolling path of the slag. In this process, the induced draft fan 6 is started so that the dust inside the clean air chamber 2 is sucked into the purification chamber 3, and the high-density fiber filter plate 5 filters the dust. The high-density fiber filter plate 5 has a good filtering effect, so that the slag dust can be purified with a good purification effect. Moreover, the inspection door 22 can be opened to pull the high-density fiber filter plate 5 out of the positioning seat 4 so as to clean or replace the high-density fiber filter plate 5 to ensure its filtering effect. Finally, the sealing plate 18 is pulled to pull the recovery box 17 out of the recovery box 16, and the slag can be taken out so that the slag can be recycled.

Claims

1. A slag recycling device for a rock wool production smelting furnace, characterized in that: The invention comprises a device body (1), a crushing chamber (7), a crushing knife (8), a waste heat recovery cover (14) and a spiral tube (19), wherein the crushing chamber (7) is arranged at the top of the device body (1), the crushing knife (8) is installed inside the crushing chamber (7) through a bearing, a rotating driving member (11) is installed at the top of the device body (1), and the output end of the rotating driving member (11) extends into the interior of the crushing chamber (7) and is fixedly connected to the top of the crushing knife (8), a hopper (12) is fixed above the device body (1), and the hopper (12) is connected to the crushing chamber (7) through a feeding pipe (13), the waste heat recovery cover (14) is fixed on the outer wall of the device body (1) at the position of the crushing chamber (7), and the waste heat recovery cover (14) is fixed to the outer wall of the device body (1) at the position of the crushing chamber (7), and the waste heat recovery cover (11) is fixed to the outer wall of the device body (1) at the position of the crushing chamber (7). 4) is adhered with heat insulation cotton (20), the spiral tube (19) is installed on the outer wall of the device body (1) inside the waste heat recovery cover (14), a clean air chamber (2) is arranged inside the device body (1) below the crushing chamber (7), and the clean air chamber (2) is connected to the crushing chamber (7), a purification chamber (3) is arranged inside the device body (1) on one side of the clean air chamber (2), and the purification chamber (3) is connected to the clean air chamber (2), positioning seats (4) are fixed on the inner walls of the top and bottom of the purification chamber (3), and a high-density fiber filter plate (5) is clamped between the positioning seats (4), and an induced draft fan (6) is arranged on one side of the device body (1), and the input end of the induced draft fan (6) is connected to the purification chamber (3) through a pipeline.

2. A slag recycling device for a rock wool production smelting furnace according to claim 1, characterized in that: A recovery box (16) is fixed on the other side of the device body (1), and the recovery box (16) is connected to the clean air chamber (2). A recovery box (17) is arranged at the bottom of the recovery box (16), and one end of the recovery box (17) extends to the outside of the recovery box (16) and is fixed with a sealing plate (18).

3. The slag recycling device for a rock wool production smelting furnace according to claim 1, characterized in that: The inside of the clean air chamber (2) is fixed with inclined material guide plates (15) at equal intervals.

4. The slag recycling device for a rock wool production smelting furnace according to claim 1, characterized in that: An inspection door (22) is installed on the outer wall of the device body (1) at the location of the purification chamber (3).

5. The slag recycling device for a rock wool production smelting furnace according to claim 1, characterized in that: The inner wall of the crushing chamber (7) is fixed with fixed knives (9) at equal intervals, and the fixed knives (9) and the crushing knives (8) cooperate with each other.

6. The slag recycling device for a rock wool production smelting furnace according to claim 1, characterized in that: A hinge shaft (25) is fixed on both side walls of the top of the hopper (12).

7. The slag recycling device for a rock wool production smelting furnace according to claim 1, characterized in that: The top of the hopper (12) is provided with a dust cover (23), and one end of the dust cover (23) is hinged to a hinge shaft (25) through a support seat (24).

8. The slag recycling device for a rock wool production smelting furnace according to claim 1, characterized in that: A water inlet pipe (10) is installed on the outer wall of the top of the waste heat recovery cover (14), and a water outlet pipe (21) is installed on the outer wall of the bottom of the waste heat recovery cover (14), and one end of the water inlet pipe (10) and the water outlet pipe (21) both extend into the interior of the waste heat recovery cover (14) and are respectively connected to the top end and the bottom end of the spiral tube (19).

Images