CN111704436A - A device and method for synergistically preparing ceramsite from coal gangue, phosphogypsum and sludge - Google Patents

Abstract

The invention relates to the technical field of equipment for preparing ceramsite from coal gangue, in particular to a device and a method for preparing ceramsite from coal gangue, phosphogypsum and sludge in a synergistic manner. The coal gangue and the gasified slag are added into the mixing device to be mixed together with the phosphogypsum, and the grinding operation is carried out, so that the mixed raw materials can form new particles under the action of the granulator, and the new particles are sintered into the ceramsite by virtue of the rotary kiln, so that the treatment of the coal gangue and the gasified slag is organically combined together, and the ceramsite with higher value is formed by production, thereby being beneficial to reducing the cost of the treatment of the coal gangue and the gasified slag and being convenient for improving the enthusiasm of people for environmental management.

Description

A device and method for synergistically preparing ceramsite from coal gangue, phosphogypsum and sludge

technical field

The invention relates to the technical field of equipment for preparing ceramsite from coal gangue, in particular to a device and method for preparing ceramsite in synergy with coal gangue, phosphogypsum and sludge.

Background technique

In real life, with the gradual expansion of the scope of human activities, in order to improve economic development, human beings are increasingly destroying the natural environment in production and life, resulting in soil and water pollution, which is not conducive to the sustainable development of environmental resources, and the environment The negative state brought about by pollution has had a serious impact on people's daily life. For example, after mining, the mined mountains are often covered with slag waste pollution, and the abandoned coal gangue and other wastes accumulate on the surface of the mining wasteland. On the surface of the mountain, it is a great obstacle to the natural recovery of the ecological environment of the mountain;

Due to the low recycling value of mining waste, people are not very enthusiastic about the restoration and management of the mine mountain environment. Therefore, if the coal gangue on the surface of the mine can be reasonably processed and utilized to form products with gain performance, it can greatly improve people's enthusiasm. Take the initiative in mountain treatment and reduce the cost of mountain treatment and restoration;

And in the field of gas extraction in the mining industry today, the utilization efficiency of coke slag formed by firing after gas extraction is low, and the existence of coke slag can often only be used as building landfill, but due to the impact of transportation costs and harmless treatment costs. As a result, the coke slag is usually directly discarded as waste. If the coal gasification slag and the waste coal gangue from mining can be rationally utilized to produce products with beneficial effects, the utilization efficiency of waste resources can be effectively enhanced and the environment can be reduced. the cost of governance;

Among various building materials today, there is a kind of material particles fired by earth and stone debris - ceramsite, ceramsite is a building material that can be processed and fired by a rotary kiln. High cylinder compressive strength, high porosity, high softening coefficient, good frost resistance, excellent reactivity of alkali-resistant aggregates, etc., make it applicable to various industrial and civil construction fields, and have high production value. Therefore, Combining the remaining coal gangue from mining with coal gasification slag to produce ceramsite can effectively improve the utilization value of coal gangue and coal gasification slag, and reduce the cost of mountain environment restoration and coal gasification slag treatment. A device and method for synergistically preparing ceramsite from coal gangue, phosphogypsum and sludge to solve the above problems.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a device and method for preparing ceramsite in synergy with coal gangue, phosphogypsum and sludge, so as to solve the problem that the existing mines proposed in the above-mentioned background technology use waste coal gangue and coal gasification slag. The problem is that coal gangue and coal gasification slag cannot be co-treated during harmless treatment, which is not conducive to improving people's enthusiasm for the restoration of the mine environment.

In order to achieve the above purpose, the present invention provides the following technical solutions: a device for preparing ceramsite in coordination with coal gangue, phosphogypsum and sludge, including a stirring mechanism, the stirring mechanism includes a support seat, and the support seat is provided with two The two sets of the support bases are fixed on the ground symmetrically, the tops of each set of the support bases are rotatably connected with a first rotating shaft, and a mixing barrel is fixedly connected between the two sets of the first rotating shafts, one of which is One end of the first rotating shaft away from the mixing barrel is fixedly connected with a first servo motor, one side of the top of the mixing barrel is fixedly connected with a feeding port, and the other side of the top of the mixing barrel is fixedly connected with a material return port, The inner middle position of the mixing barrel is vertically inserted with a second rotating shaft, and the outer side of the second rotating shaft is fixedly installed with a stirring blade, and the upper end of the second rotating shaft is fixedly connected with a second servo motor. A discharge pipe is fixed in the middle of the bottom, the other end of the discharge pipe is connected with a first feeding pump through a hose, and the output end of the first feeding pump is connected with a mill through a pipe, and the grinding machine is The bottom of the machine is fixedly connected with a granulator, the discharge port of the granulator is fixedly connected with a second feeding pump, and the output end of the second feeding pump is connected with a rotary kiln through a pipeline, and the output of the rotary kiln is connected. There is a cooling mechanism connected to the material port through a pipeline, and the outer wall of the cooling mechanism is evenly inlaid with heat pipes, the outer side of the rotary kiln is wrapped with a condensation pipe, and the discharge port of the cooling mechanism is connected with a third feeding pump through a pipe , and the output end of the third feeding pump is connected with a dust removal mechanism through a pipeline. The dust removal mechanism includes a dust removal cylinder. The top middle position of the dust removal cylinder is fixedly installed with a feeding cylinder. A baffle is installed through the bracket, and the bottom of the baffle is welded and fixed with an air supply hood, the outer wall of the baffle is evenly inlaid with ventilation guide cylinders, and the end of the air supply hood away from the baffle is welded and communicated with a fan. The outer wall of the dust removal cylinder is fixedly inlaid with a connecting pipe, and the other end of the connecting pipe is welded and connected with a connecting ring cylinder, the bottom of the dust removal cylinder is welded and connected with a discharge hopper, and the other end of the discharge hopper is fixedly connected with a screening mechanism. The screening mechanism includes a cylinder, a third rotating shaft is laterally inserted in the inner middle position of the cylinder, and one end of the third rotating shaft is fixedly connected with a third servo motor, and the third rotating shaft is located outside one end of the interior of the cylinder A spiral blade is fixedly installed, through holes are evenly opened on the outer wall of the cylinder, a recovery box is wrapped at the lower part of the outer side of the cylinder, and one side of the recovery box is welded and connected to the input end of the fourth feeding pump .

Preferably, the mixing barrel is rotatably connected to the support seat through a first rotating shaft, the first rotating shaft is fixedly connected to the rotation output shaft of the first servo motor, and the stirring blade is rotatably connected to the mixing barrel through the second rotating shaft, so The second rotating shaft is fixedly connected to the rotating output shaft of the second servo motor.

Preferably, the heat pipe and the condensing pipe are communicated with each other through pipes, the interior of the heat pipe is filled with high-purity water, and the heat pipe and the condensing pipe are spirally wound and fixed on the outside of the cooling mechanism and the rotary kiln, respectively.

Preferably, the shape of the shield is stepped, and the middle position of the top of the shield is directly below the feeding cylinder, and the feeding cylinder is connected to the output end of the third feeding pump through a pipeline.

Preferably, the air supply hood is funnel-shaped and fixed on the bottom of the shield, the ventilation guide cylinders are obliquely installed on the outer wall of the shield, and each group of the ventilation guide cylinders is fixedly embedded with a filter mesh.

Preferably, the shape of the connecting ring tube is circular, and the center of the connecting ring tube and the dust removal tube are located on the same vertical line, the outer side of the connecting ring tube is connected with a connecting box through a pipeline, and the The other end is fixedly connected to the return port through a pipeline.

Preferably, the cylinder is installed and communicated at the bottom of the discharge hopper in an inclined shape, the helical blade is rotatably connected to the cylinder through a third rotating shaft, the outer shape of the helical blade is helical, and the outer edge of the helical blade is located at the bottom of the hopper. Fitted to the inner wall of the cylinder.

Preferably, the right outer wall of the cylinder is provided with a through opening, the recovery box is wrapped on the outside of the through hole, and the output end of the fourth feeding pump is connected to the connection box through a pipeline.

A method for synergistically preparing ceramsite from coal gangue, phosphogypsum and sludge, comprising the following steps:

Step 1: Add coal gangue, phosphogypsum and coal gasification slag raw materials to the inside of the mixing barrel through the feeding port, the first servo motor drives the mixing barrel to swing back and forth after power-on and starts, and the second servo motor rotates after power-on and starts, and passes through the first servo motor. The second rotating shaft drives the stirring blade to rotate, and stirs and mixes the added raw materials inside the mixing barrel, so that the added coal gangue, phosphogypsum and coal gasification slag raw materials are evenly mixed;

Step 2: The uniformly mixed raw material enters the interior of the mill through the pumping of the first feeding pump, and is ground into powder in the interior of the mill;

Step 3: The raw materials ground into powder drop down into the inside of the granulator, start up through the work of the granulator, and process into granular semi-finished products;

Step 4: The semi-finished products processed into granules inside the granulator are pumped to the inside of the rotary kiln under the operation of the second feeding pump, and the ceramsite is formed by firing in the rotary kiln;

Step 5: The ceramsite fired and formed inside the rotary kiln is transported to the inside of the cooling mechanism, and the cooling mechanism is carried out inside the cooling mechanism. , for waste heat utilization;

Step 6: The ceramsite fired and formed inside the rotary kiln is transported to the inside of the dust removal mechanism by the pumping of the third feeding pump. Reuse inside the stirring mechanism;

Step 7: The dust-removed ceramsite inside the dust-removing mechanism falls down and enters the interior of the screening mechanism. After being screened by the screening mechanism, the bad particles inside the ceramsite are screened out, and the qualified products are exported. It is transported to the inside of the stirring mechanism for recycling.

Compared with the prior art, the beneficial effects of the present invention are:

1. By setting, the coal gangue and coal gasification slag and phosphogypsum are added to the mixing device for mixing, and the grinding operation is carried out, so that the mixed raw materials can form new particles under the action of the granulator, and with the help of cyclone The kiln is fired into ceramsite, which makes the treatment of coal gangue and coal gasification slag organically combined, and the formation of ceramsite with high value through production is conducive to reducing the cost of coal gangue and coal gasification slag treatment, and is convenient for improving people's enthusiasm for environmental governance;

2. By setting the first servo motor to turn on the power to drive the mixing barrel to swing back and forth, and to cooperate with the second servo motor to turn on the power to drive the stirring blade to rotate and stir inside the mixing barrel, which effectively enhances the mixing mechanism of the stirring mechanism for coal gangue, coal gasification slag and phosphogypsum. uniformity of stirring;

3. By setting the heat pipe to communicate with the condenser pipe, high-purity water is added inside the heat pipe, so that when the formed ceramsite enters the cooling mechanism for heat dissipation and cooling, the high-purity water in the heat pipe can be vaporized and enter the condensing pipe to release heat, which is for the cyclone. The temperature inside the kiln provides a guarantee, which is conducive to the recycling and utilization of heat resources and is convenient for reducing energy loss;

4. By setting up a dust removal mechanism to remove dust from the produced ceramsite, it is beneficial to prevent the ceramsite from flying dust when it is screened and filtered. At the same time, the unqualified ceramsite falling from the inside of the recovery box is recycled through the fourth feeding pump. , Cooperate with the dust collected in the connecting ring cylinder, and re-transport it to the inside of the stirring mechanism through the connecting box, which is conducive to the recycling of unqualified products and effectively avoids the waste of resources.

Description of drawings:

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative efforts.

Fig. 1 is the structure front sectional schematic diagram of the present invention;

2 is a schematic front view of the structure of the present invention;

Fig. 3 is the structural front sectional schematic diagram of the stirring mechanism of the present invention;

Fig. 4 is the structural front sectional schematic diagram of the dust removal mechanism of the present invention;

5 is a schematic top view of the structure of the dust removal mechanism of the present invention;

6 is a schematic perspective view of the structure of the shield of the present invention;

FIG. 7 is a schematic cross-sectional view of the structure of the screening mechanism of the present invention;

FIG. 8 is a schematic diagram of the work flow of the present invention.

In the figure: 1, stirring mechanism; 101, support base; 102, first shaft; 103, mixing barrel; 104, first servo motor; 105, feed port; 106, return port; 107, second shaft; 108 , stirring blade; 109, the second servo motor; 110, the discharge pipe; 2, the first feed pump; 3, the mill; 4, the granulator; 5, the second feed pump; 6, the rotary kiln; 7. Cooling mechanism; 801, heat pipe; 802, condenser pipe; 9, the third feeding pump; 10, dust removal mechanism; 1001, dust removal cylinder; 1002, feeding cylinder; 1003, shield; 1004, air supply hood; 1005 , ventilation guide cylinder; 1006, fan; 1007, connecting pipe; 1008, connecting ring cylinder; 1009, hopper; 11, screening mechanism; 1101, cylinder; 1102, the third shaft; 1103, the third servo motor; 1104, Spiral blade; 1105, through hole; 1106, recovery box; 1107, fourth feeding pump; 12, connection box.

Detailed ways:

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIGS. 1-8 , an embodiment provided by the present invention: a device for synergistically preparing ceramsite from coal gangue, phosphogypsum and sludge, comprising a stirring mechanism 1, and the stirring mechanism 1 includes a support base 101, and the support base There are two sets of 101, two sets of support bases 101 are fixed on the ground symmetrically, the top of each set of support bases 101 is rotatably connected with a first rotating shaft 102, and the two sets of first rotating shafts 102 are fixedly connected with a hybrid. The barrel 103, wherein one end of the first rotating shaft 102 away from the mixing barrel 103 is fixedly connected with the first servo motor 104, the top side of the mixing barrel 103 is fixedly connected with the feeding port 105, and the other side of the top of the mixing barrel 103 is fixedly connected There is a material return port 106, a second rotating shaft 107 is vertically inserted in the middle position of the mixing barrel 103, and a stirring blade 108 is fixedly installed on the outer side of the second rotating shaft 107, and the upper end of the second rotating shaft 107 is fixedly connected with a second servo The motor 109, the middle position of the bottom of the mixing barrel 103 is fixedly provided with a discharge pipe 110, the other end of the discharge pipe 110 is connected to the first feeding pump 2 through a hose, and the mixing barrel 103 is connected to the support seat through the first rotating shaft 102. 101 is rotatably connected, the first shaft 102 is fixedly connected to the rotation output shaft of the first servo motor 104, the stirring blade 108 is rotatably connected to the mixing tank 103 through the second shaft 107, and the second shaft 107 is fixedly connected to the second servo motor 109. On the rotating output shaft, when working, the workers add coal gangue, coal gasification slag and phosphogypsum into the mixing barrel 103 through the feeding port 105. At this time, the first servo motor 104 and the second servo motor 109 are powered on and started, When the first servo motor 104 rotates, it drives the first rotating shaft 102 fixed on its rotating output shaft to rotate back and forth, so that the mixing barrel 103 with a fixed middle position of the first rotating shaft 102 swings back and forth. At the same time, after the second servo motor 109 is powered on and started Drive the second rotating shaft 107 fixed on the rotating output shaft to rotate, so that the second rotating shaft 107 drives the stirring blade 108 to rotate inside the mixing barrel 103, and stirs the coal gangue, coal gasification slag and phosphogypsum added inside the mixing barrel 103 Mixing, with the back and forth swinging of the mixing barrel 103, makes the mixing more uniform and effective, and greatly improves the uniformity of the mixing of the raw materials.

The output end of the first feeding pump 2 is connected with the mill 3 through the pipeline, and the bottom of the mill 3 is fixedly connected with the granulator 4, and the discharge port of the granulator 4 is fixedly connected with the second feeding pump 5 , and the output end of the second feeding pump 5 is connected with the rotary kiln 6 through the pipeline, the discharge port of the rotary kiln 6 is connected with the cooling mechanism 7 through the pipeline, and the inner wall of the cooling mechanism 7 is evenly inlaid with the heat pipe 801. The outer side of 6 is wrapped with a condensing pipe 802. The heat pipe 801 and the condensing pipe 802 are connected to each other through pipes. The interior of the heat pipe 801 is filled with high-purity water. On the outside of the kiln 6, when the raw materials are fully mixed in the stirring mechanism 1, the fully mixed coal gangue, coal gasification slag and phosphogypsum in the mixing barrel 103 will flow out under the pumping action of the first feeding pump 2. The inside of the material pipe 110 is led out into the interior of the mill 3, the grinding operation is completed in the mill 3, and the raw material after the grinding operation is turned into a powder into the interior of the granulator 4, and the granule is formed by the granulator 4. Semi-finished products, and through the electrification of the second feeding pump 5, the granular semi-finished products inside the granulator 4 are transported to the interior of the rotary kiln 6, and the granular semi-finished products are fired and shaped inside the rotary kiln 6 to generate ceramsite. After the ceramsite production is completed, it enters the interior of the cooling mechanism 7 for cooling and cooling, and the inside of the heat pipe 801 and the condenser pipe 802 is in a negative pressure state. The high-purity water absorbs the waste heat inside the cooling mechanism 7, and rapidly vaporizes through heat absorption. The vaporized high-purity water enters the interior of the condenser tube 802 upward, and the heat is released in the interior of the condenser tube 802. Sliding into the inside of the heat pipe 801, the heat pipe 801 recycles the waste heat inside the cooling mechanism 7, and by releasing heat inside the condensing pipe 802, the auxiliary rotary kiln 6 maintains the ceramsite firing temperature, and effectively avoids the direct dissipation of the waste heat, which is convenient for Recycling and utilization of thermal resources.

The discharge port of the cooling mechanism 7 is connected with a third feeding pump 9 through a pipeline, and the output end of the third feeding pump 9 is connected with a dust removal mechanism 10 through a pipeline. The dust removal mechanism 10 includes a dust removal cylinder 1001. A feeding cylinder 1002 is fixedly installed in the middle position, and a blocking cover 1003 is installed in the middle position of the dust removal cylinder 1001 through a bracket. , the feeding cylinder 1002 is connected to the output end of the third feeding pump 9 through a pipeline. During operation, the ceramsite after cooling in the cooling mechanism 7 is transported to the inside of the dust removal mechanism 10 by the electrification of the third feeding pump 9, and the ceramic The granules enter the interior of the dust removal tube 1001 from the feeding cylinder 1002. Under the action of gravity, the ceramsite falls onto the shield 1003 and falls down along the stepped shield 1003. The countertop of the shield 1003 collides and jumps, so that the ceramsite is separated from the dust mixed inside, which is convenient for the quick removal of the dust inside the ceramsite.

The bottom of the baffle 1003 is welded and fixed with an air supply hood 1004, the outer wall of the baffle 1003 is evenly embedded with a ventilation guide tube 1005, the end of the air supply hood 1004 away from the baffle 1003 is welded and connected to a fan 1006, and the outer wall of the dust removal cylinder 1001 is fixed A connecting pipe 1007 is inlaid, the air supply hood 1004 is funnel-shaped and fixed on the bottom of the shield 1003, the ventilation guide tube 1005 is installed obliquely on the outer wall of the shield 1003, and the interior of each group of ventilation guide tubes 1005 is fixed and inlaid with a filter mesh , when working, when the ceramsite collides and jumps on the shield 1003, the fan 1006 is energized and started, and the air is blown into the shield 1003 through the air supply hood 1004, and the gas pushes the ceramsite through the ventilation guide tube 1005. Under the guidance of the ventilation guide tube 1005, the gas is blown upward obliquely, and the dust mixed in the ceramsite is blown into the connecting pipe 1007. The connecting pipe 1007 is embedded with a filter screen, which can effectively prevent the ceramsite from entering the connecting pipe 1007. , Through the wind blowing, the dust mixed in the ceramsite can be effectively exported.

The other end of the connecting pipe 1007 is connected with a connecting ring cylinder 1008 by welding. The shape of the connecting ring cylinder 1008 is annular, and the center of the connecting ring cylinder 1008 and the dust removal cylinder 1001 are located on the same vertical line, and the outer side of the connecting ring cylinder 1008 The connection box 12 is connected to the connection box 12 through the pipeline, and the other end of the connection box 12 is fixedly connected to the return port 106 through the pipeline. During operation, the dust entering the connection pipe 1007 enters the connection box 12 through the connection ring cylinder 1008 and passes through the pipeline. Re-enter the interior of the mixing barrel 103 from the return port 106, so that the device can recycle the dust derived from the device, avoid unnecessary dust discharge, and facilitate the recycling of resources.

A discharge hopper 1009 is connected to the bottom of the dust removal cylinder 1001 by welding, and the other end of the discharge hopper 1009 is fixedly connected with a screening mechanism 11 . , and one end of the third rotating shaft 1102 is fixedly connected with the third servo motor 1103, the outer side of one end of the third rotating shaft 1102 located in the interior of the cylinder 1101 is fixedly installed with a spiral blade 1104, and the outer wall of the cylinder 1101 is uniformly opened with through holes 1105, The cylinder 1101 is installed and communicated at the bottom of the discharge hopper 1009 in an inclined shape. The spiral blade 1104 is rotatably connected to the cylinder 1101 through the third rotating shaft 1102. On the inner wall of the cylinder 1101, during operation, the ceramsite after the dust removal in the dust removal cylinder 1001 falls down to the inside of the cylinder 1101, and is filtered through the through holes 1105 opened on the outer wall of the cylinder 1101, which is conducive to the comparison of the interior of the ceramsite. The small unqualified products are filtered, and the spiral blades 1104 are set to rotate and install inside the cylinder 1101. When the third servo motor 1103 is powered on and started, it can drive the third rotating shaft 1102 fixed on its rotating output to rotate, so that the spiral blades 1104 Rotating inside the cylinder 1101, through the helical rotation of the helical blade 1104, the falling speed of the ceramsite is delayed under the action of the axial conveying force, so that the ceramsite is fully screened inside the cylinder 1101, and the qualified ceramsite passes through the circle. The opening on the right side of the cartridge 1101 leads out.

A recovery box 1106 is wrapped at the lower part of the outer side of the cylinder 1101, and one side of the recovery box 1106 is connected to the input end of the fourth feeding pump 1107 by welding. The right outer wall of the cylinder 1101 is provided with a through opening, and the recovery box 1106 is wrapped on the outside of the through hole 1105, and the output end of the fourth feeding pump 1107 is connected to the connection box 12 through a pipeline. Inside, the fourth feeding pump 1107 is energized to twitch the inside of the conveyor belt connection box 12, and enters the mixing barrel 103 from the inside of the return port 106 through a pipeline for recycling, which is beneficial to avoid waste of resources.

A method for synergistically preparing ceramsite from coal gangue, phosphogypsum and sludge, comprising the following steps:

Step 1: Add coal gangue, phosphogypsum and coal gasification slag raw materials into the mixing barrel 103 through the feeding port 105, the first servo motor 104 drives the mixing barrel 103 to swing back and forth after being powered on, and the second servo motor 109 is powered on to start After the rotation, the stirring blade 108 is driven to rotate by the second rotating shaft 107, and the added raw materials inside the mixing barrel 103 are stirred and mixed, so that the added coal gangue, phosphogypsum and coal gasification slag raw materials are evenly mixed;

Step 2: The uniformly mixed raw material enters the interior of the mill 3 through the pumping of the first feed pump 2, and is ground into powder in the interior of the mill 3;

Step 3: The raw materials ground into powder drop down into the interior of the granulator 4, and are started by the work of the granulator 4 to be processed into granular semi-finished products;

Step 4: The semi-finished products processed into granular inside the granulator 4 are pumped to the inside of the rotary kiln 6 under the operation of the second feed pump 5, and the ceramsite is formed by the firing of the rotary kiln 6;

Step 5: The ceramsite fired inside the rotary kiln 6 is transported to the inside of the cooling mechanism 7, and the cooling mechanism 7 is cooled. The heat pipe 801 wrapped on the outer wall of the cooling mechanism 7 recovers the waste heat inside the cooling mechanism It is transported to the inside of the condenser tube 802 for waste heat utilization;

Step 6: The ceramsite fired in the rotary kiln 6 is transported to the inside of the dust removal mechanism 10 by the pumping of the third feeding pump 9, and the dust mixed in the ceramsite is blown off inside the dust removal mechanism 10, and the separated The dust is re-transported to the inside of the stirring mechanism 1 for reuse;

Step 7: The dust-removed ceramsite inside the dust-removing mechanism 10 falls down into the interior of the screening mechanism 11, and is screened by the screening mechanism 11, so that the bad particles inside the ceramsite are screened out, the qualified products are exported, and the unqualified products are passed through The connection box 12 is re-transported into the stirring mechanism 1 for recycling.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the appended claims. All changes within the meaning and range of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (9)

1. A device for synergistically preparing ceramsite from coal gangue, phosphogypsum and sludge, comprising a stirring mechanism (1), characterized in that: the stirring mechanism (1) includes a support seat (101), and the support seat (101) ) is provided with two groups in total, the two groups of said support bases (101) are fixed on the ground symmetrically, the top of each group of said support bases (101) is rotatably connected with a first shaft (102), and the two groups of A mixing barrel (103) is fixedly connected between the first rotating shafts (102), and a first servo motor (104) is fixedly connected to one end of a group of the first rotating shafts (102) away from the mixing barrel (103). The top side of the mixing barrel (103) is fixedly connected with a feeding port (105), and the other side of the top of the mixing barrel (103) is fixedly connected with a return material port (106). A second rotating shaft (107) is vertically inserted in the inner middle position, and a stirring blade (108) is fixedly installed on the outer side of the second rotating shaft (107), and the upper end of the second rotating shaft (107) is fixedly connected with a second servo In the motor (109), a discharge pipe (110) is fixedly opened at the middle position of the bottom of the mixing barrel (103), and the other end of the discharge pipe (110) is connected with a first feeding pump (2) through a hose , the output end of the first feeding pump (2) is connected with a mill (3) through a pipeline, and a granulator (4) is fixedly connected to the bottom of the mill (3), and the granulator ( The discharge port of 4) is fixedly connected with a second feeding pump (5), and the output end of the second feeding pump (5) is connected with a rotary kiln (6) through a pipeline, and the discharge of the rotary kiln (6) A cooling mechanism (7) is communicated with the mouth through a pipeline, and a heat pipe (801) is evenly embedded in the outer wall of the cooling mechanism (7), and a condensation pipe (802) is wrapped around the outside of the rotary kiln (6). The discharge port of the mechanism (7) is connected with a third feeding pump (9) through a pipeline, and the output end of the third feeding pump (9) is connected with a dust removal mechanism (10) through a pipeline, and the dust removal mechanism (10) It includes a dust removal cylinder (1001), a feeding cylinder (1002) is fixedly installed at the top middle position of the dust removal cylinder (1001), and a shield (1003) is installed at the inner middle position of the dust removal cylinder (1001) through a bracket , and the bottom of the shield (1003) is welded and fixed with an air supply cover (1004), the outer wall of the shield (1003) is evenly inlaid with a ventilation guide tube (1005), and the air supply cover (1004) is far away from the shield One end of (1003) is connected with the fan (1006) by welding, the outer wall of the dust removal cylinder (1001) is fixedly embedded with a connecting pipe (1007), and the other end of the connecting pipe (1007) is welded and connected with a connecting ring cylinder (1008) The bottom of the dust removal cylinder (1001) is welded with a discharge hopper (1009), and the other end of the discharge hopper (1009) is fixedly connected with a screening mechanism (11), and the screening mechanism (11) includes a cylinder (1101). ), the inner middle position of the cylinder (1101) A third rotating shaft (1102) is inserted laterally, and one end of the third rotating shaft (1102) is fixedly connected with a third servo motor (1103), and the third rotating shaft (1102) is located at one end of the interior of the cylinder (1101). A spiral blade (1104) is fixedly installed on the outer side, through holes (1105) are evenly opened on the outer wall of the cylinder (1101), and a recovery box (1106) is wrapped at the lower position of the outer side of the cylinder (1101). One side of the box (1106) is connected to the input end of the fourth feeding pump (1107) by welding. 2 . The device for preparing ceramsite in coordination with coal gangue, phosphogypsum and sludge according to claim 1 , wherein the mixing barrel ( 103 ) passes through the first rotating shaft ( 102 ) and the support seat ( 101 ). 3 . Rotationally connected, the first rotating shaft (102) is fixedly connected to the rotation output shaft of the first servo motor (104), and the stirring blade (108) is rotatably connected to the mixing barrel (103) through the second rotating shaft (107), The second rotating shaft (107) is fixedly connected to the rotation output shaft of the second servo motor (109). 3. The device for preparing ceramsite in coordination with coal gangue, phosphogypsum and sludge according to claim 1, wherein the heat pipe (801) and the condensation pipe (802) are communicated with each other through pipes, so The inside of the heat pipe (801) is filled with high-purity water, and the heat pipe (801) and the condensation pipe (802) are spirally wound and fixed on the outside of the cooling mechanism (7) and the rotary kiln (6) respectively. 4. A device for preparing ceramsite in synergy with coal gangue, phosphogypsum and sludge according to claim 1, characterized in that: the shape of the shield (1003) is stepped, and the shield (1003) The middle position of the top of the feeding cylinder (1002) is directly below the feeding cylinder (1002), and the feeding cylinder (1002) is connected with the output end of the third feeding pump (9) through a pipeline. 5. A device for preparing ceramsite in coordination with coal gangue, phosphogypsum and sludge according to claim 1, wherein the air supply hood (1004) is funnel-shaped and fixed on the bottom of the shield (1003) , the ventilation guide cylinders (1005) are installed obliquely on the outer wall of the shield (1003), and each group of the ventilation guide cylinders (1005) is fixedly inlaid with a filter screen inside. 6. A device for preparing ceramsite in coordination with coal gangue, phosphogypsum and sludge according to claim 1, wherein the connection ring cylinder (1008) has an annular shape, and the connection ring cylinder (1008) has a circular shape. 1008) and the center of the dust removal cylinder (1001) are located on the same vertical line, the outer side of the connecting ring cylinder (1008) is connected with a connection box (12) through a pipeline, and the other end of the connection box (12) is fixed through the pipeline. Connected to the return port (106). 7 . The device for preparing ceramsite in coordination with coal gangue, phosphogypsum and sludge according to claim 1 , wherein the cylinder ( 1101 ) is installed and communicated at the bottom of the discharge hopper ( 1009 ) in an inclined shape. 8 . , the helical blade (1104) is rotatably connected to the cylinder (1101) through the third rotating shaft (1102), the helical blade (1104) has a helical shape, and the outer edge of the helical blade (1104) is in close contact with each other. on the inner wall of the cylinder (1101). 8 . The device for preparing ceramsite in coordination with coal gangue, phosphogypsum and sludge according to claim 6 , wherein the right outer wall of the cylinder ( 1101 ) is provided with a through opening, and the The recovery box (1106) is wrapped on the outside of the through hole (1105), and the output end of the fourth feeding pump (1107) is communicated with the connection box (12) through a pipeline. 9. A method for synergistically preparing ceramsite from coal gangue, phosphogypsum and sludge, comprising the steps of: Step 1: add coal gangue, phosphogypsum and coal gasification slag raw materials into the mixing barrel (103) through the feeding port (105), and the first servo motor (104) drives the mixing barrel (103) to swing back and forth after being powered on and started, And the second servo motor (109) rotates after being powered on, drives the stirring blade (108) to rotate through the second rotating shaft (107), and stirs and mixes the injected raw materials inside the mixing barrel (103), so that the added coal gangue, The phosphogypsum and coal gasification slag raw materials are mixed evenly; Step 2: the uniformly mixed raw material enters the interior of the mill (3) through the pumping of the first feed pump (2), and is ground into powder in the interior of the mill (3); Step 3: the raw materials ground into powder drop down into the inside of the granulator (4), start up by the work of the granulator (4), and process into granular semi-finished products; Step 4: The semi-finished products processed into the granular shape inside the granulator (4) are pumped into the interior of the rotary kiln (6) under the operation of the second feeding pump (5), and formed by firing the rotary kiln (6). ceramsite; Step 5: the ceramsite fired and formed inside the rotary kiln (6) is transported to the inside of the cooling mechanism (7), and the cooling mechanism (7) is cooled inside the cooling mechanism (7), the heat pipe (801) wrapped on the outer wall of the cooling mechanism (7), The waste heat inside the cooling mechanism (7) is recovered and transported to the inside of the condenser pipe (802) for waste heat utilization; Step 6: The ceramsite fired inside the rotary kiln (6) is transported to the inside of the dust removal mechanism (10) by the pumping of the third feeding pump (9). Blow off, and re-transport the separated dust to the inside of the stirring mechanism (1) for reuse; Step 7: The ceramsite after dust removal inside the dust removal mechanism (10) falls down into the interior of the screening mechanism (11), and is screened by the screening mechanism (11), so that the bad particles inside the ceramsite are screened out, and the qualified products are exported , and the unqualified products are re-transported to the inside of the stirring mechanism (1) through the connection box (12) for recycling.

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