阅读说明：本技术 一种石灰生产系统 (Lime production system ) 是由 周春华 于 2019-10-08 设计创作，主要内容包括：本发明涉及一种石灰生产系统,包括窑体和卸灰装置,卸灰装置由上而下为依次连接的承接斗、出灰机、第一卸灰斗和第二卸灰斗,卸灰装置上连接有鼓风机,鼓风机上连接有鼓风管；第一卸灰斗呈圆锥状,且圆锥的轴线平行于水平面,第一卸灰斗的下端为圆锥形的尖锐端,第二卸灰斗的上端连接有进料阀,第一卸灰斗的下端与第二卸灰斗上的进料阀连接,鼓风管远离鼓风机的一端与第一卸灰斗的侧面连接,鼓风管远离鼓风机一端的轴线与第一卸灰斗外侧面相切,在第一卸灰斗一侧设置有出煤灰箱,出煤灰箱的上端连接有第一出煤灰管和第二出煤灰管。其能够减少生产出来的石灰内部煤粉量,提高了石灰的质量。(The invention relates to a lime production system, which comprises a kiln body and an ash discharging device, wherein the ash discharging device comprises a receiving hopper, an ash discharging machine, a first ash discharging hopper and a second ash discharging hopper which are sequentially connected from top to bottom; the first ash discharging hopper is conical, the axis of the cone is parallel to the horizontal plane, the lower end of the first ash discharging hopper is a conical sharp end, the upper end of the second ash discharging hopper is connected with a feed valve, the lower end of the first ash discharging hopper is connected with the feed valve on the second ash discharging hopper, one end of the blast pipe, far away from the air blower, is connected with the side face of the first ash discharging hopper, the axis of the blast pipe, far away from one end of the air blower, is tangent to the outer side face of the first ash discharging hopper, one side of the first ash discharging hopper is provided with an ash discharging box, and the upper end of the ash discharging box is connected with a first ash discharging pipe and a second ash discharging pipe. The method can reduce the amount of coal powder in the produced lime and improve the quality of the lime.)

1. The utility model provides a lime production system, includes the kiln body (1) and unloads grey device (2), unload grey device (2) fixed mounting in the lower extreme department of the kiln body (1), its characterized in that: the ash discharging device (2) comprises a receiving hopper (3), an ash discharging machine (4), a first ash discharging hopper (5) and a second ash discharging hopper (6) which are sequentially connected from top to bottom, the ash discharging device (2) is connected with an air blower (7), and the air blower (7) is connected with an air blowing pipe (71); the first ash discharging hopper (5) is conical, the axis of the cone is parallel to the horizontal plane, the lower end of the first ash discharging hopper (5) is a conical sharp end, the upper end of the second ash discharging hopper (6) is connected with a feeding valve (61), the lower end of the first ash discharging hopper (5) is connected with the feeding valve (61) on the second ash discharging hopper (6), one end, far away from an air blower (7), of a blast pipe (71) is connected with the side face of the first ash discharging hopper (5), the axis, far away from one end of the air blower (7), of the blast pipe (71) is tangent to the outer side face of the first ash discharging hopper (5), a coal ash discharging box (8) is arranged on one side of the first ash discharging hopper (5), the upper end of the coal ash discharging box (8) is connected with a first coal ash discharging pipe (83) and a second coal ash discharging pipe (84), the other end of the first coal ash discharging pipe (83) is connected with the first ash discharging hopper (5), and one end, connected with one end of the first ash discharging hopper (5) is higher than the blast pipe (71), and the first ash discharging hopper (5) is connected with the blast pipe (71) And the axis of one end of the first coal ash discharging pipe (83) connected with the first ash discharging hopper (5) is tangent to the outer side surface of the first ash discharging hopper (5), and the other end of the second coal ash discharging pipe (84) is connected with the bearing hopper (3).

2. A lime production system according to claim 1, wherein: the position that blast pipe (71) and first ash discharging bucket (5) lateral surface are connected is located the lower extreme of first ash discharging bucket (5) lateral surface, and blast pipe (71) and the first upper end of first ash discharging bucket (5) of the axis point to of one end is connected with first ash discharging bucket (5), first coal ash discharging pipe (83) and the one end of being connected of first ash discharging bucket (5) be located the upper end of first ash discharging bucket (5) lateral surface.

3. A lime production system according to claim 2, wherein: two opposite side surfaces of coal ash box (8) upper end on respectively fixed mounting have first ash valve (81) and second ash valve (82), the height that highly is higher than first ash valve (81) of second ash valve (82), first ash pipe is connected with first ash valve (81), the second ash pipe is connected with second ash valve (82), the lower extreme fixed mounting of coal ash box (8) has the ash valve of row.

4. A lime production system according to claim 3, wherein: the bottom of the receiving hopper (3) is fixedly provided with at least two lower charging barrels (31), the first ash discharging hopper (5) comprises a hopper body and a sealing cover (51) which is arranged at the upper end of the hopper body in a sealing mode, projections of the lower charging barrels (31) on the sealing cover (51) are located on the same circle, the circle center of the circle is located on the axis of the first ash discharging hopper (5), the distance between every two adjacent lower charging barrels (31) is equal, the sealing cover (51) is provided with the discharging holes (52) with the number equal to that of the lower charging barrels (31), the lower charging barrels (31) correspond to the discharging holes (52) one to one, and the projections of the lower charging barrels (31) on the sealing cover (51) are located in the discharging holes (52) corresponding to the lower charging barrels (31).

5. A lime production system according to claim 4, wherein: the downside of sealed lid (51) on the fixed locating part (53) that is provided with, locating part (53) be conical, its axis and the axis coincidence of first ash bucket (5), and the one end that sealed lid (51) was kept away from in locating part (53) is conical sharp end, the projection of locating part (53) on sealed lid (51) is located down between the projection place circle of feed cylinder (31) on sealed lid (51).

6. A lime production system according to claim 3, wherein: the second ash discharging pipe in install exhaust fan (9), the wind direction that exhaust fan (9) blown out is to the one end that second ash discharging pipe and bearing fill (3) are connected by the one end that second ash discharging pipe and second ash discharging valve (82) are connected.

7. A lime production system according to claim 4, wherein: the second ash discharging pipe is provided with a through groove (91), a chain penetrates through the through groove (91), a fan motor (92) is installed on the outer side face of the second ash discharging pipe, and the fan motor (92) drives the exhaust fan (9) to rotate through the chain.

8. A lime production system according to claim 3, wherein: and a material level meter is also arranged on the coal ash discharging box (8).

Technical Field

The invention relates to the technical field of equipment for generating quick lime by limestone, in particular to a lime production system.

Background

The traditional production process is that limestone and fuel are put into a lime kiln, the lime and the fuel begin to decompose after being preheated to 850 ℃, the calcination is completed when the temperature reaches 1200 ℃, and finally the lime is cooled and discharged out of the kiln. The lime kiln mainly comprises a kiln body, a feeding device, a distributing device, a combustion device, an ash discharging device, a dust removal device and an electric control device. The lime shaft kiln is generally used at present, the lime shaft kiln adopts a countercurrent preheating and calcining principle, the thermal process of lime in the kiln sequentially passes through a preheating zone, a calcining zone and a cooling zone from top to bottom in the kiln, combustion-supporting air reversely moves with materials from bottom to top, and different thermal processes are performed in the zones. Combustion-supporting air enters at the bottom of the kiln, is preheated with lime which is lowered to a cooling section and calcined, is cooled while being preheated, hot air which is preheated by fastening heat exchange enters a calcining area, the calcining temperature is increased in the calcining area to complete combustion-supporting action, high-temperature air flow which flows out from the calcining area and contains carbon dioxide enters the preheating area, the high-temperature air flow exchanges heat with stone and fuel which enter the kiln again, the temperature of the high-temperature air flow is reduced while the heat exchange is carried out, the heat energy brought by waste gas discharged from the kiln is reduced, and energy is saved.

At present, in the process of firing lime by a vertical kiln, raw materials and pulverized coal are mixed and then are put into a kiln body from the upper end of the vertical kiln, and due to various factors, the pulverized coal mixed with the raw materials cannot achieve the effect of complete combustion, and part of the pulverized coal can be condensed into coal slag and is doped in the fired lime. When lime is discharged, lime is poured into a guide sliding groove with a small hole, and a vibration motor is fixedly mounted on the outer side surface of the guide sliding groove, so that the motor continuously vibrates, coal powder with small particles is sieved, and the quality of the produced lime is improved. However, the lime produced just now is brittle and is easy to crack under vibration, and the lime becomes lime particles with smaller particles, and the lime particles leak from the small holes on the guide chute, so that waste is caused.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a lime production system which can reduce the amount of coal powder in produced lime and improve the quality of the lime.

The above object of the present invention is achieved by the following technical solutions:

a lime production system comprises a kiln body and an ash discharging device, wherein the ash discharging device is fixedly arranged at the lower end of the kiln body, the ash discharging device comprises a bearing hopper, an ash discharging machine, a first ash discharging hopper and a second ash discharging hopper which are sequentially connected from top to bottom, the ash discharging device is connected with an air blower, and the air blower is connected with an air blowing pipe; the first ash discharging hopper is conical, the axis of the cone is parallel to the horizontal plane, the lower end of the first ash discharging hopper is a conical sharp end, the upper end of the second ash discharging hopper is connected with a feeding valve, the lower end of the first ash discharging hopper is connected with the feeding valve on the second ash discharging hopper, one end of the blast pipe, far away from the air blower, is connected with the side surface of the first ash discharging hopper, the axis of one end of the blast pipe, far away from the air blower, is tangent to the outer side surface of the first ash discharging hopper, a coal ash discharging box is arranged on one side of the first ash discharging hopper, the upper end of the coal ash discharging box is connected with a first coal ash discharging pipe and a second coal ash discharging pipe, the other end of the first coal ash discharging pipe is connected with the first ash discharging hopper, the end of the first coal ash discharging pipe connected with the first ash discharging hopper is higher than the end of the blast pipe connected with the first ash discharging hopper, and the axis of one end of the first coal ash discharging pipe connected with the first ash discharging hopper is tangent to the outer side surface of the first ash discharging hopper, and the other end of the second coal ash discharging pipe is connected with the receiving hopper.

By adopting the technical scheme, the raw materials are poured into the kiln body and then combusted, and finally fall to the lower end of the kiln body to form lime, and at the moment, the lime is in a small block shape and is doped with incompletely combusted coal powder. When lime falls into the receiving hopper from the lower end of the kiln body and then falls into the first ash discharging hopper, the feeding valve is closed at the moment, and the blower continuously blows air into the first ash discharging hopper from the blast pipe. Because a large amount of combustion-supporting air is needed in the kiln body, the power of the blower is high, the air speed is high, the rotating cyclone is easily formed in the first ash discharging hopper in the conical shape, and falling lime is continuously blown to overturn, so that the pulverized coal on the surface of the lime is separated from the lime. The air blown by the blower is divided into two parts, the first part is a part of the cyclone close to the middle, and the cyclone passes through the ash discharger and returns to the ash discharge hopper, and finally enters the kiln body; the second part of air is the peripheral part of the cyclone, enters the coal ash discharging box through the first coal ash discharging pipe, returns to the ash discharging hopper through the second coal ash discharging pipe and finally enters the kiln body. Since the pulverized coal has a heavier weight than air blown from a blower, the pulverized coal is accumulated on the periphery of the cyclone. First part wind is cleaner than the second part wind, reduces the probability that the coal ash adulterates once more and burns the good lime in the lime, and second part hole wind is when going out the ash bin, because first ash tube and second ash tube all connect the upside at the ash bin, the heavier coal ash of weight falls more easily in the ash bin to reach the inside buggy volume of the lime that reduces to produce, and then improved the quality of lime.

The invention is further configured to: the position that blast pipe and first ash discharging bucket lateral surface are connected is located the lower extreme of first ash discharging bucket lateral surface, and the axis that blast pipe and first ash discharging bucket are connected one end points to the upper end of first ash discharging bucket, the one end that first coal ash discharging pipe and first ash discharging bucket are connected be located the upper end of first ash discharging bucket lateral surface.

Through adopting above-mentioned technical scheme, connect the blast pipe on the bottom of first dust hopper, can make the more comprehensive wind that the air-blower blew in blow through whole first dust hopper in, can be better blow down the coal ash on the lime.

The invention is further configured to: two opposite side surfaces of the upper end of the coal ash discharging box are respectively and fixedly provided with a first ash discharging valve and a second ash discharging valve, the height of the second ash discharging valve is higher than that of the first ash discharging valve, the first ash discharging pipe is connected with the first ash discharging valve, the second ash discharging pipe is connected with the second ash discharging valve, and the lower end of the coal ash discharging box is fixedly provided with an ash discharging valve.

By adopting the technical scheme, when the coal ash in the coal ash discharging box is accumulated to a certain amount, the first ash discharging valve and the second ash discharging valve are closed, so that the coal ash discharging box is not communicated with the bearing hopper and the first ash discharging hopper, and then the ash discharging valve is opened to discharge the coal ash in the coal ash discharging box. And then closing the ash discharge valve, and opening the first ash discharge valve and the second ash discharge valve to enable the ash storage box to normally collect the coal ash. The structure is safer, the interior of the kiln body still keeps a good sealing state, and the phenomenon of accidents caused by gas leakage in the kiln body is not easy to occur.

The invention is further configured to: accept hopper bottom fixed be provided with two at least feed cylinders down, first ash discharge bucket includes hopper body and the sealed lid of sealed setting in hopper body upper end, the projection of each feed cylinder on sealed lid all is located same circle down, and the centre of a circle of this circle is located the axis of first ash discharge bucket, interval between two adjacent feed cylinders down equals, sealed covering sets up the unloading hole that quantity and feed cylinder quantity equal, feed cylinder and unloading hole one-to-one down, the projection of feed cylinder at sealed lid is located the unloading hole that this feed cylinder corresponds down.

Through adopting above-mentioned technical scheme, the bottom of accepting the fill is provided with a plurality of feed barrels down, and the material enters into first ash hopper through feed barrels down. This structure makes lime when falling into first ash discharge bucket, and the axis department that does not directly follow first ash discharge bucket falls to divide into the stranded with lime, be difficult for appearing because a large amount of lime pours into first ash discharge bucket in, lead to appearing the wind direction disorder, unable fine formation whirlwind, the phenomenon of buggy in the reduction lime.

The invention is further configured to: the downside of sealed lid on the fixed locating part that is provided with, the locating part be the taper shape, its axis and the coincidence of the axis of first ash bucket, and the one end that sealed lid was kept away from to the locating part is conical sharp end, the projection of locating part on sealed lid lies in down between the projection place circle of feed cylinder on sealed lid.

Through adopting above-mentioned technical scheme, under the effect of locating part, the wind that the space in the first ash bucket can be better bloated to the air-blower leads to form whirlwind more easily.

The invention is further configured to: the second ash discharging pipe is internally provided with an exhaust fan, and the wind direction blown out by the exhaust fan is from one end of the second ash discharging pipe connected with the second ash discharging valve to one end of the second ash discharging pipe connected with the receiving hopper.

Through adopting above-mentioned technical scheme, the exhaust fan is in work, and the continuous one end of being connected to second ash pipe and accepting the fill is bloied, and at the in-process of blowing, the atmospheric pressure in the ash discharging box reduces, therefore the gas in the first ash discharging bucket is by the suction in the ash discharging box, and the gas in the first ash discharging bucket can get into the ash discharging box more easily in, has improved the effect of cleaing away the coal ash.

The invention is further configured to: the second ash discharging pipe is provided with a through groove, a chain is arranged in the through groove in a penetrating mode, the outer side face of the second ash discharging pipe is provided with a fan motor, and the fan motor drives the exhaust fan to rotate through the chain.

Through adopting above-mentioned technical scheme, because the second ash pipe is direct with accept the fill and be connected, consequently with fan motor setting in the second ash pipe outside, reduce the influence that fan motor received, improved fan motor's life.

The invention is further configured to: and a material level meter is also arranged on the coal ash discharging box.

Through adopting above-mentioned technical scheme, the charge level indicator can detect out the coal ash volume in the coal ash incasement, and the people of being convenient for detect and monitor to the coal ash of people's timely clearance play coal ash incasement accumulation of being convenient for.

In conclusion, the beneficial technical effects of the invention are as follows:

1. the amount of coal powder in the produced lime can be reduced, and the quality of the lime is improved;

2. the coal ash amount in the coal ash box can be detected, and people can conveniently detect and monitor the coal ash.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial schematic view of portion A of FIG. 1;

FIG. 3 is a schematic view of the construction of the ash discharge apparatus;

FIG. 4 is a partial schematic view of portion B of FIG. 3;

fig. 5 is a partial schematic view of portion C of fig. 3.

In the figure, 1, a kiln body; 2. an ash discharge device; 3. a receiving hopper; 31. feeding the material barrel; 4. a dust discharging machine; 41. a movable plate; 42. a telescopic push rod; 5. a first hopper; 51. a sealing cover; 52. a blanking hole; 53. a limiting member; 6. a second hopper; 61. a feed valve; 7. a blower; 71. a blast pipe; 8. discharging a coal ash box; 81. a first ash valve; 82. a second ash valve; 83. a first coal ash discharging pipe; 84. a second coal ash discharging pipe; 9. an exhaust fan; 91. a groove is arranged in a penetrating way; 92. a fan motor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a lime production system disclosed in the present invention includes a kiln body 1 and an ash discharging device 2 installed on a lower end of the kiln body 1. The ash discharging device 2 is provided with a receiving hopper 3, an ash discharging machine 4, a first ash discharging hopper 5 and a second ash discharging hopper 6 which are connected in sequence from top to bottom.

Referring to fig. 2 and 3, the upper end of the receiving hopper 3 is fixedly connected with the bottom end of the kiln body 1, four discharging barrels 31 are welded on the bottom surface of the receiving hopper 3, the discharging barrels 31 are in a circular truncated cone shape, and the cross section of one end of each discharging barrel 31 connected with the bottom surface of the receiving hopper 3 is larger than that of one end far away from the bottom surface of the receiving hopper 3. In the projection of each discharging barrel 31 on the horizontal plane, the circle center of each projection is located on the same circular ring, and the circle center of the circular ring is located on the axis of the kiln body 1. The distance between two adjacent lower barrels 31 is equal. The ash discharging machine 4 comprises four groups of ash discharging units, each group of ash discharging units corresponds to one lower charging barrel 31, one group of ash discharging units comprises a movable plate 41 and a telescopic push rod 42, the movable plate 41 is abutted against the lower end of the corresponding lower charging barrel 31, the telescopic push rod 42 is fixedly connected to the movable plate 41, the other end of the telescopic push rod 42 is located on one side, away from the central point of the cross section of the receiving hopper 3, of a movable cover plate connected with the telescopic push rod 42, and the movable plate 41 is located under the lower charging barrel 31 when the telescopic push rod 42 is completely extended.

Referring to fig. 3 and 4, the first ash discharge hopper 5 is conical, the axis of the first ash discharge hopper 5 and the axis of the kiln body 1 are positioned in the same straight line, and the lower end of the first ash discharge hopper 5 is a conical tip. The top surface of the first ash hopper 5 is welded with a sealing cover 51, the sealing cover 51 is provided with four discharging holes 52, each discharging hole 52 corresponds to one discharging barrel 31, and the projection of the bottom end of each discharging barrel 31 on the sealing cover 51 is positioned in the corresponding discharging hole 52. A hollow stopper 53 is welded to the bottom surface of the seal cap 51, the stopper 53 is conical, and the lower end of the stopper 53 is a conical tip. And the axis of the limiting piece 53 and the axis of the first ash hopper 5 are positioned on the same straight line. The size of an included angle between a generatrix of the limiting piece 53 and the axis is equal to the size of an included angle between the generatrix of the first ash hopper 5 and the axis, and the diameter of the bottom surface of the limiting piece 53 is smaller than the distance between the two opposite blanking holes 52. The upper end of the second ash discharging hopper 6 is provided with a feeding valve 61, and the lower end of the first ash discharging hopper 5 is hermetically connected with the feeding valve 61.

Referring to fig. 3 and 5, a blower 7 is installed at one side of the first hopper 5, a blower pipe 71 is connected to the blower 7, and the other end of the blower pipe 71 is connected to the lower end of the first hopper 5. The end of the blast pipe 71 connected with the first ash discharging hopper 5 is tangent with the outer side surface of the first ash discharging hopper 5, the included angle between the axial line of the end of the blast pipe 71 connected with the first ash discharging hopper 5 and the axial line of the first ash discharging hopper 5 is an acute angle, and the axial line of the end points to the upper end of the first ash discharging hopper 5. Install the ash discharging box 8 in the relative one side of first ash discharging bucket 5, fixed mounting has first ash valve 81 and second ash valve 82 on the ash discharging box 8 upper end, the height that highly is less than second ash valve 82 of first ash valve 81, the first ash pipe 83 of fixedly connected with on first ash valve 81, the other end of first ash pipe 83 is connected to the upper end of first ash discharging bucket 5 side, and first ash pipe 83 is tangent with first ash discharging bucket 5 lateral surface. A second ash discharging pipe 84 is fixedly connected to the second ash discharging valve 82, and the other end of the second ash discharging pipe 84 is connected to the receiving hopper 3. An ash discharge valve is fixedly arranged at the bottom of the coal ash discharging box 8, and a material level meter is fixedly arranged on the coal ash discharging box 8.

Referring to fig. 3 and 5, the second soot discharging pipe 84 is a square pipe, the exhaust fan 9 is fixedly installed inside the second soot discharging pipe 84, and when the exhaust fan 9 rotates, the wind direction blown by the exhaust fan is from the end of the second soot discharging pipe connected with the second connecting valve to the end of the second soot discharging pipe connected with the receiving hopper 3. A through groove 91 and a fan motor 92 are provided on the upper surface of the second soot discharging pipe 84, the through groove 91 is located on the upper side of the exhaust fan 9, the fan motor 92 is located on one side of the through groove 91, a chain is provided between the fan motor 92 and the exhaust fan 9, and the fan motor 92 drives the exhaust fan 9 to rotate through the chain.

The implementation principle of the embodiment is as follows: the raw materials are poured into the kiln body 1 and then combusted, and finally fall to the lower end of the kiln body 1 to form lime, and the lime is in a small block shape and is doped with incompletely combusted coal powder. Lime falls from the lower end of the kiln body 1 to the receiving hopper 3, and is poured into the first ash discharging hopper 5 through the discharging barrel 31 under the action of the ash discharging machine 4. Under the action of the limiting piece 53, the position of the center of the top surface of the first ash hopper 5 is filled, and the blower 7 continuously blows air into the first ash hopper 5 from the blast pipe 71, so that rotating whirlwind is easily formed in the first ash hopper 5 in a conical shape, and falling lime is continuously blown to overturn, so that pulverized coal on the surface of the lime is separated from the lime. At this point the feed valve 61 is closed and the air blown by the blower 7 is divided into two parts, the first part being the middle part of the cyclone, which passes through the ash ejector 4 and returns to the ash hopper and finally enters the kiln body 1; the second part of the air is the peripheral part of the cyclone, enters the coal ash discharging box 8 through the first coal ash discharging pipe 83, returns to the ash discharging hopper through the second coal ash discharging pipe 84 and finally enters the kiln body 1. Since the pulverized coal has a heavier weight than the air blown by the blower 7, the pulverized coal is accumulated on the periphery of the cyclone. First part wind is cleaner than second part wind, the probability of phenomenon that the coal ash dopes in the good lime of firing once more is reduced, second part hole wind is when going out the ash box 8, because first ash pipe 83 is less than second ash pipe 84, and first ash pipe 83 and second ash pipe 84 all connect the upside at ash box 8, the heavier coal ash of weight falls more easily in ash box 8, thereby reach the inside coal dust volume of the lime that reduces production, and then improved the quality of lime. The charge level indicator arranged on the coal ash discharging box 8 can detect the coal ash amount in the coal ash discharging box 8, so that people can conveniently detect and monitor, and the coal ash stored in the coal ash discharging box 8 can be conveniently and timely cleaned.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.