Rock wool waste residue smelting furnace recycling system

Abstract

The utility model belongs to the technical field of industrial recovery, and particularly relates to a rock wool waste residue smelting furnace recycling system which comprises a waste wool scraper conveyor, a waste wool crusher, a climbing belt conveyor, a dryer, a spiral conveyor and a smelting furnace. A discharging port of the waste cotton scraper conveyor is connected with a feeding port of the waste cotton crusher, a discharging port of the waste cotton crusher is connected with an inlet of the dryer through the climbing belt conveyor, and a tail outlet of the dryer is connected with an inlet of the smelting furnace through the spiral conveyor. Rock wool waste residues in a workshop are crushed, dried and then conveyed into the smelting furnace, waste residues in rock wool production can be effectively recycled, the utilization rate of the rock wool waste residues is increased, manpower and material resources are reduced, and resource waste is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial recycling, and in particular relates to a rock wool waste slag furnace recycling system. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] As a Class A non-combustible product, rock wool is increasingly recognized by the market and used in large quantities. However, due to production uncertainty and equipment process limitations, the yield of rock wool has always been low. During the normal production process, about 30% of rock wool will be defective or waste, collectively referred to as waste residue.

[0004] Rock wool waste not only occupies land, but also needs secondary recycling. The traditional method is to make the waste into blocks and then put them into the furnace for recycling, which not only wastes a lot of manpower and material resources, but also has poor recycling effect in the furnace due to the large volume or high humidity of the waste, resulting in low resource recycling efficiency and serious waste of resources. Utility Model Content

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a rock wool waste slag furnace recycling system.

[0006] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions:

[0007] The first aspect of the utility model provides a rock wool waste slag furnace recycling system, comprising: a waste cotton scraper conveyor, a waste cotton crusher, a climbing belt conveyor, a dryer, a screw conveyor and a furnace;

[0008] The discharge port of the waste cotton scraper conveyor is connected to the feed port of the waste cotton crusher, the discharge port of the waste cotton crusher is connected to the inlet of the dryer through a climbing belt conveyor, and the tail outlet of the dryer is connected to the inlet of the furnace through a screw conveyor.

[0009] Furthermore, the equipment shell of the waste cotton scraper conveyor is a trough-shaped structure, in which a conveyor belt is arranged, and a plurality of scrapers are arranged at intervals on the conveyor belt.

[0010] Furthermore, the feed inlet of the waste cotton crusher is a trapezoidal feed inlet, below the trapezoidal feed inlet is a feed channel, and below the feed channel is a double-shaft crusher;

[0011] Guide plates inclined toward the middle are arranged on the two side walls of the lower part of the feed channel.

[0012] Furthermore, the discharge port of the waste cotton crusher is a square discharge port, and a grate plate is provided at the end of the square discharge port;

[0013] The grate plate is provided with a plurality of through holes in an array.

[0014] Furthermore, the feed end and the discharge end of the dryer are fixed, and the rotating cylinder between the feed end and the discharge end rotates;

[0015] A plurality of guide plates and anti-swirl plates arranged at intervals are arranged on the inner wall of the rotating cylinder.

[0016] Furthermore, the guide plates are arranged at the front and rear ends of the rotating cylinder, and the anti-swirl plate is arranged at the middle position of the rotating cylinder;

[0017] The guide plate and the anti-swirl plate are both cross-shaped structures, and the difference is that the rotation directions are opposite.

[0018] Furthermore, a hoist is provided between the dryer and the screw conveyor, and the hoist is used to lift the waste residues at the tail outlet and the smoke outlet of the dryer to the feed inlet of the screw conveyor.

[0019] Furthermore, a filter bag is provided at the smoke outlet of the dryer, and the discharge port of the filter bag is connected to the feed port of the elevator.

[0020] Furthermore, it also includes a double-twisted lower silo, the discharge port of which is connected to the feed port of the waste cotton crusher through an iron removal belt conveyor;

[0021] A partition plate is provided below the discharge end of the iron removal belt conveyor.

[0022] Furthermore, the dryer is connected to a hot blast furnace, and the hot blast furnace is used to burn natural gas and furnace flue gas to generate heat for the dryer.

[0023] One or more of the above technical solutions have the following beneficial effects:

[0024] (1) The utility model provides a method for crushing and drying the rock wool waste slag in the workshop and then conveying it to the furnace. The recycled waste slag is crushed by a crusher, which is convenient for melting the rock wool waste slag when it is reused later; by drying the recycled waste slag, the stability of the combustion of the rock wool waste slag can be ensured; the utility model can effectively recycle the waste slag in the rock wool production, realize the automatic recycling and utilization of the rock wool waste slag, improve the utilization rate of the rock wool waste slag, reduce manpower and material resources and reduce resource waste.

[0025] (2) The heat source of the dryer in the utility model not only adopts the traditional natural gas heating, but also utilizes the waste heat of the furnace in the workshop; that is, by conveying the smoke generated by the furnace to the hot air furnace for combustion, the waste heat in the workshop is utilized, which is energy-saving and efficient.

[0026] (3) While realizing the recycling of normal production waste, the utility model can further realize the recycling of waste in the workshop; and before the waste in the workshop is transported to the crusher, considering that there may be scrap iron blocks in the waste cotton slag, a magnet is set on the driving wheel of the belt conveyor to realize the iron removal of the waste in the workshop.

[0027] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0029] Figure 1 This is a schematic diagram of a rock wool waste slag furnace recycling system of Example 1.

[0030] Figure 2 This is the structural diagram of the waste cotton scraper machine in Example 1.

[0031] Figure 3 This is a structural diagram of the waste cotton crusher of Example 1.

[0032] Figure 4 This is a structural diagram of the dryer of Example 1.

[0033] Figure 5 Schematic diagram of the iron removal belt conveyor of Example 1.

[0034] In the figure, 1. Waste cotton scraper conveyor, 102 main shaft, 103 driven shaft, 104 sprocket, 105 plate chain, 106 scraper, 2. Waste cotton crusher, 201 trapezoidal feed port, 202 double-shaft crusher, 203 guide plate, 204 square discharge port, 205 roller and slideway, 3. Dryer, 301 dryer feed port, 302 guide plate, 303 check swirl plate, 304 dryer discharge port, 4. Deironing belt conveyor, 401 driving wheel, 402 partition plate. DETAILED DESCRIPTION

[0035] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0036] Embodiment 1

[0037] like Figure 1 As shown, the utility model proposes a rock wool waste slag furnace recycling system, including: a waste cotton scraper conveyor, a waste cotton crusher, a climbing belt conveyor, a dryer, a screw conveyor and a furnace;

[0038] The discharge port of the waste cotton scraper conveyor is connected to the feed port of the waste cotton crusher, the discharge port of the waste cotton crusher is connected to the inlet of the dryer through a climbing belt conveyor, and the tail outlet of the dryer is connected to the inlet of the furnace through a screw conveyor.

[0039] By adopting the above technical scheme, when the rock wool waste is recycled and reused, the waste cotton dropped from the workshop centrifugal-cotton collection system process falls onto the waste cotton scraper conveyor, and the waste cotton scraper conveyor transports the waste cotton to the waste cotton crusher. The waste cotton, waste residue and other materials crushed by the waste cotton crusher are transported to the entrance of the dryer through the climbing belt, and the dried rock wool waste is transported to the furnace for use, thereby realizing online recycling and reuse of waste residue, which saves resources.

[0040] As a further technical solution, Figure 2 As shown, the equipment shell of the waste cotton scraper conveyor 1 is a trough structure, in which a conveyor belt is arranged, and a main shaft 102 and a driven shaft 103 are respectively arranged at both ends of the conveyor belt, and two large sprockets 104 are respectively arranged on the main shaft 102 and the driven shaft 103, and a plate chain 105 is sleeved on the large sprocket 104, and the main shaft 102 and the driven shaft 103 are linked by the plate chain 105;

[0041] A driving motor 101 is installed at the head of the waste cotton scraper conveyor, which is used to drive the head sprocket on the main shaft 102 and then drive the plate chain 105 for transmission. The driving motor speed is 20-40r / min to increase the torque;

[0042] A scraper 106 is arranged at intervals on the conveyor belt of the waste cotton scraper conveyor. Since the waste cotton scraper conveyor is placed at an angle, the scraper 106 is arranged to prevent the rock wool waste from sliding to the bottom.

[0043] As a further technical solution, Figure 3 As shown, the feed inlet of the waste cotton crusher 2 is a trapezoidal feed inlet 201, and the volume of the trapezoidal feed inlet 201 is about 1m 3 , which can ensure that a large amount of waste cotton enters instantly without causing blockage.

[0044] A double-shaft crusher 202 is arranged inside the waste cotton crusher 2. The crusher is provided with teeth. The tooth structure is similar to the rack of a mace. The two crushers in the double-shaft crusher 202 rotate towards each other to cut the waste cotton and run downward; and the top of the double-shaft crushing teeth together with the feed port are an integral rotating shaft design, which is convenient for maintenance of the crusher teeth.

[0045] Below the trapezoidal feed port 201 is a feed channel of a rectangular structure, and below the feed channel is a double-shaft crusher 202; on the upper part of the double-shaft crusher 202 and on the two side walls of the lower part of the feed channel, there are guide plates 203 inclined toward the middle, and the two guide plates 203 are both inclined toward the double-shaft crusher 202 to prevent waste cotton from getting stuck on both sides. An arc plate is connected below the two guide plates 203, which is more conducive to the waste cotton falling into the double-shaft crusher 202 for crushing.

[0046] The discharge port of the waste cotton crusher is a square discharge port 204, on which an arc-shaped grate plate is arranged (equivalent to the bottom of the double-shaft crusher); a plurality of through holes are arranged in an array on the grate plate, and the size of the holes on the grate plate can be adjusted according to the particle size of the furnace feed, for example, the particle size of the furnace feed is generally required to be 5 to 35 mm.

[0047] A movable roller and slideway 205 are provided under the base of the waste cotton crusher 2 to facilitate adjustment of the position of the waste cotton crusher 2. As a further technical solution, Figure 4 As shown, the dryer 3 is a drum-type downstream dryer, and the feed end and the discharge end of the dryer 3 are respectively provided with a feed port 301 and a discharge port 304, the feed end and the discharge end are fixed, and the rotating cylinder in the middle is rotating, and the rotation of the cylinder can be driven by the rotation of the large gear, and the stability and support of the cylinder are supported by the belt.

[0048] The rock wool waste enters the rotating cylinder through the feed port 301. A plurality of guide plates 302 and a swirl check plate 303 are arranged on the inner wall of the rotating cylinder. The guide plates 302 are arranged at the front and rear ends of the rotating cylinder, and the swirl check plate 303 is arranged in the middle of the rotating cylinder.

[0049] The guide plate 302 and the check swirl plate 303 are both cross-shaped structures, the difference is that the rotation directions are opposite, the guide plate 302 is along the direction of the material, and the check swirl plate 303 is against the direction of the material, which is used to stabilize the material and prevent the material from rotating too fast on the inner cylinder wall. By setting the check swirl plate 303, it is achieved that only when the material is stable and the material quantity is large, the front material is used to push the material in the reverse position to move forward, thereby preventing the material from flowing too fast.

[0050] The guide plate of the utility model is set at an angle of 15 degrees to ensure that the material flows forward. At the same time, in order to prevent the waste cotton from often clumping and being difficult to dry, the front guide plate changes the previous plate design and is set in a fork shape to facilitate the dispersion of the waste cotton.

[0051] In order to prevent the waste cotton from flowing too fast due to its light density, a 1m wide anti-swirl plate 303 is set in the middle of the dryer, so that it can move forward only when a large amount of materials are rotating. The connection between the rotating cylinder of the dryer and the fixed feed end and discharge end is sealed with fish scales to prevent air leakage. The fish scales are fixed at both ends with stainless steel sheets and are in direct contact with the rotating cylinder, which has the advantages of high elasticity and low resistance.

[0052] The heat of the dryer 3 comes from the flue gas after the hot blast furnace is burned. On the basis of natural gas heating, the flue gas generated by the furnace is sent to the hot blast furnace through a pipeline for combustion, and the flue gas after combustion is used in the dryer.

[0053] As a further technical solution, a hoist is provided between the dryer and the screw conveyor, and the hoist is used to lift the waste residue at the tail outlet of the dryer and the smoke outlet of the dryer to the feed inlet of the screw conveyor.

[0054] The utility model provides a filter bag at the smoke outlet of the dryer, the discharge port of the filter bag is connected to the feed port of the elevator, the smoke at the dryer outlet is filtered by the filter bag, the smoke is discharged up to standard through the fan, and the cotton wool filtered by the filter bag is finally discharged into the elevator inlet.

[0055] As a further technical solution, a double-twisted lower silo is also included, and the discharge port of the double-twisted lower silo is connected to the feed port of the waste cotton crusher through an iron removal belt conveyor.

[0056] The utility model can add waste cotton after workshop edge fragmentation, waste cotton used for filtering in the production process and waste cotton after building demolition while recycling normal production waste, and uniformly put them into the double-twisted lower silo by a forklift, so as to further realize the recycling of waste materials in the workshop.

[0057] The upper feed port of the double-twisted lower silo is a large trapezoidal silo with a capacity of 6m 3 A double spiral reamer is installed at the bottom 1 / 3, and a toothed structure is installed at intervals on the spiral reamer. The double spiral structure rotates inward at the same time, and the toothed structure is mainly used to tear the cotton board into a ball. A long strip discharge port is set at the bottom of the double spiral, and a height-adjustable gate is set at the discharge end of the discharge port to adjust the discharge volume of the double-twisted discharge bin.

[0058] An iron removal belt conveyor 4 is installed at the discharge port below the double-twisted lower silo. The iron removal belt conveyor 4 and the discharge port of the double-twisted lower silo are sealed with flexible materials to prevent material overflow. The discharge amount of the double-twisted lower silo is controlled by an adjustable gate, and while adjusting the discharge amount, the speed of the double spiral can be adjusted to adjust the discharge amount to prevent blockage.

[0059] like Figure 5As shown, considering that there may be scrap iron blocks in the waste cotton slag during production or building demolition, a permanent magnet is installed in the driving wheel 401 of the de-ironing belt conveyor 4, and a partition plate 402 is provided below the discharge end of the de-ironing belt conveyor. Since the de-ironing belt conveyor 4 is inclined, its lower end is the feed end, which is connected to the discharge port of the double-twisted lower silo, and its higher end is the discharge end, which is connected to the crusher; the waste cotton slag transported on the de-ironing belt conveyor 4 can be thrown forward to the crusher by inertia, and the iron blocks run backward through the magnetism of the roller, that is, they are adsorbed on the conveyor belt. When the magnetism becomes smaller and is not enough to support the weight of the iron blocks, the iron blocks fall to the ground to realize the de-ironing of the waste slag.

[0060] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A rock wool waste slag furnace recycling system, characterized in that: include: Waste cotton scraper conveyor, waste cotton crusher, climbing belt conveyor, dryer, screw conveyor and furnace; The discharge port of the waste cotton scraper conveyor is connected to the feed port of the waste cotton crusher, the discharge port of the waste cotton crusher is connected to the inlet of the dryer through a climbing belt conveyor, and the tail outlet of the dryer is connected to the inlet of the furnace through a screw conveyor.

2. A rock wool waste slag furnace recycling system according to claim 1, characterized in that: The equipment shell of the waste cotton scraper conveyor is a trough-shaped structure, in which a conveyor belt is arranged, and a plurality of scrapers are arranged at intervals on the conveyor belt.

3. A rock wool waste slag furnace recycling system according to claim 1, characterized in that: The feed inlet of the waste cotton crusher is a trapezoidal feed inlet, below the trapezoidal feed inlet is a feed channel, and below the feed channel is a double-shaft crusher; Guide plates inclined toward the middle are arranged on the two side walls of the lower part of the feed channel.

4. A rock wool waste slag furnace recycling system according to claim 1, characterized in that: The discharge port of the waste cotton crusher is a square discharge port, and a grate plate is provided at the end of the square discharge port; The grate plate is provided with a plurality of through holes in an array.

5. The rock wool waste slag furnace recycling system according to claim 1, characterized in that: The feed end and the discharge end of the dryer are fixed, and the rotating cylinder between the feed end and the discharge end rotates; A plurality of guide plates and anti-swirl plates arranged at intervals are arranged on the inner wall of the rotating cylinder.

6. A rock wool waste slag furnace recycling system according to claim 5, characterized in that: The guide plates are arranged at the front and rear ends of the rotating cylinder, and the anti-swirl plate is arranged at the middle position of the rotating cylinder; The guide plate and the anti-swirl plate are both cross-shaped structures, and the difference is that the rotation directions are opposite.

7. A rock wool waste slag furnace recycling system according to claim 1, characterized in that: A hoist is also provided between the dryer and the screw conveyor, and the hoist is used to lift the waste residues at the tail outlet and the smoke outlet of the dryer to the feed inlet of the screw conveyor.

8. A rock wool waste slag furnace recycling system according to claim 7, characterized in that: A filter bag is arranged at the smoke outlet of the dryer, and the discharge port of the filter bag is connected to the feed port of the elevator.

9. A rock wool waste slag furnace recycling system according to claim 1, characterized in that: It also includes a double-twisted lower bin, the discharge port of which is connected to the feed port of the waste cotton crusher through an iron removal belt conveyor; A partition plate is provided below the discharge end of the iron removal belt conveyor.

10. The rock wool waste slag furnace recycling system according to claim 1, characterized in that: The dryer is connected to a hot blast furnace, and the hot blast furnace is used to burn natural gas and furnace flue gas to generate heat for the dryer.

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