Rotary distributing device for double-hearth lime kiln

Abstract

The utility model provides a rotary distributing device for a double-chamber lime kiln, which comprises a rotatable distributing disc positioned at the upper position inside a kiln body of the double-chamber lime kiln, the distributing disc is of an umbrella-shaped structure, and a plurality of limiting strips protruding upwards are uniformly distributed on the upper surface of the distributing disc. A discharging area convenient for materials to move to the edge position of the material distribution disc is formed between every two adjacent limiting strips, and a plurality of discharging area groups uniformly distributed around the center of the material distribution disc are formed by all the discharging areas; the material distributing disc is reasonable in design structure and convenient to use, the discharging areas with the edges different from the center of the material distributing disc in distance are arranged on the material distributing disc, so that materials fall down from the different edges of the discharging areas, the problem of blockage caused by discharging through dispersing holes is avoided, discharging uniformity is improved, and the material distributing disc is convenient to use. And an original vibration type structure is replaced by a pneumatic blowing mode, so that the blanking effect is improved on the premise of avoiding equipment damage, and the effects of uniform blanking, stable operation and long service life of the distributor are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of distributors for double-chamber lime kilns, and in particular relates to a rotary distributor for double-chamber lime kilns. Background Art

[0002] At present, in a double-chamber lime kiln, limestone is distributed through a distributor located on the top of the kiln. The uniformity of the lime powder after distribution has a certain impact on the production efficiency of the lime kiln. The existing rotary distributor can achieve a certain degree of equal distribution of the lime powder, but the lime powder is generally not evenly distributed. The lime powder is prone to stacking after stirring, which directly affects the homogenization effect. Poor homogenization effect and unreasonable lime distribution also lead to low production efficiency of the lime kiln.

[0003] In order to solve the above technical problems, the applicant submitted a Chinese utility model patent with application number 202221520699.0 on August 30, 2022, which discloses a lime kiln rotary distributor, relating to the technical field of lime kiln devices. The lime kiln rotary distributor includes a lime kiln tank body, and a feeding hole is opened on the top of the lime kiln tank body. A feeding pipe connected to the feeding hole is fixedly connected to the top of the lime kiln tank body. When in use, the raw materials are added through the feeding pipe, and the raw materials will pass through the feeding hole and the discharge pipe and fall onto the dispersion disk for dispersion, and then the raw materials slide down the inclined surface of the dispersion disk and leak out from the dispersion hole for discharge. At the same time, the driving mechanism is started to drive the discharge pipe to rotate, and the rotation of the discharge pipe drives the dispersion disk to rotate through the connecting rod, so that the raw materials leaked from the dispersion hole are further dispersed. At the same time, the rotation of the dispersion disk drives the protrusion to rotate, and the rotation of the protrusion collides with the impact ball and passes over the impact ball to generate vibration, so that the raw materials on the dispersion disk vibrate and disperse and improve the discharge effect, effectively improving the sufficiency of the lime kiln tank body for calcining the limestone powder raw materials, thereby improving the quality of the quicklime product.

[0004] However, the above scheme still has certain defects in actual use. First, the material enters the dispersion holes along the inclined surface of the dispersion disk, and then leaks out from the dispersion holes for discharge. In actual operation, the dispersion holes will be blocked, resulting in the fact that most of the materials are not discharged from the dispersion holes obviously, which in turn leads to the problem of poor discharge uniformity. Secondly, the collision of the protrusions and the impact balls causes the dispersion disk raw materials to vibrate and disperse. In this process, it is easy to cause damage to the protrusion position or the impact ball, or cause deformation of the dispersion disk or increased wear of other bearing positions of the equipment. When the protrusions and the impact balls are damaged and do not vibrate, it will further lead to poor discharge of the dispersion holes and poor material discharge uniformity. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a rotary distributor for a double-chamber lime kiln, which has a reasonable design structure and is easy to use. Discharging areas with different distances between the edge and the center of the distributing disk are arranged on the distributing disk, so that materials fall from different edge positions of the discharging area, avoiding the problem of blockage caused by discharging materials through dispersed holes, which is beneficial to improving the uniformity of discharging materials. The original vibrating structure is replaced by a pneumatic blowing method, which improves the discharging effect while avoiding damage to the equipment, and ensures that the distributor has the effects of uniform discharging, stable operation and long service life.

[0006] The technical solution adopted by the utility model is: a rotary distributor for a double-chamber lime kiln, comprising a rotatable distribution plate located at an upper position inside the kiln body of the double-chamber lime kiln, the distribution plate is in an umbrella-shaped structure, and a plurality of upwardly protruding limit strips are evenly distributed on the upper surface of the distribution plate, and a discharge area for facilitating the movement of materials to the edge of the distribution plate is formed between two adjacent limit strips, and all the discharge areas form a plurality of discharge area groups evenly distributed around the center of the distribution plate, and the distance between the discharge area edge of each group of discharge areas and the center of the distribution plate is gradually reduced; a discharge pipe is provided inside the kiln body and at a position deviating from the center of the distribution plate, and the material can fall from the discharge pipe onto the distribution plate below, and during the rotation of the distribution plate, the material falls into the kiln body along different discharge areas.

[0007] A first rotating shaft is installed at the center of the material distribution plate. The first rotating shaft is installed on the kiln body through a bearing. The first rotating shaft passes through the top wall of the kiln body and the upper end is connected to a driving device.

[0008] A second rotating shaft is installed inside the feeding pipe, the axis of the second rotating shaft is parallel to the central axis of the material distribution plate, and spiral blades are installed on the outer wall of the second rotating shaft.

[0009] The upper end of the second rotating shaft extends to the outside of the feeding pipe and the end is connected to a second motor.

[0010] It also includes a receiving hopper installed on the top of the kiln body, and the receiving hopper is communicated with the feeding pipe.

[0011] The kiln also includes a ventilation pipe extending to the inside of the kiln body. A nozzle is installed at the lower end of the ventilation pipe, and the nozzle is located above the material distribution plate.

[0012] The beneficial effects of the utility model are:

[0013] The utility model has a reasonable design structure and is easy to use. A material discharging area with different distances between the edge and the center of the material discharging plate is arranged on the material discharging plate, so that the material falls from different edge positions of the material discharging area, avoiding the problem of blockage caused by using dispersed holes for material discharging, which is beneficial to improving the uniformity of material discharging. The original vibration structure is replaced by a pneumatic blowing method, which improves the material discharging effect while avoiding equipment damage, and ensures that the distributor has the effects of uniform material discharging, stable operation and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a three-dimensional diagram of the material distribution tray of the utility model.

[0016] Markings in the figure: 1. kiln body; 2. discharge pipe; 3. spiral blade; 4. first rotating shaft; 5. distribution plate; 6. nozzle; 7. ventilation pipe; 8. first motor; 9. second motor; 10. second rotating shaft; 11. receiving hopper; 12. limit bar; 13. first discharge area; 14. second discharge area; 15. third discharge area; 16. fourth discharge area. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] As shown in the figure, a rotary distributor for a double-chamber lime kiln includes a rotatable distribution plate 5 located above the kiln body 1 of the double-chamber lime kiln, wherein a first rotating shaft 4 is installed at the center of the distribution plate 5, and the first rotating shaft 4 is installed on the kiln body 1 through a bearing. The first rotating shaft 4 passes through the top wall of the kiln body 1 and is connected to a driving device at the upper end. The driving device includes a first motor 8. The first motor 8 can be connected to the first rotating shaft 4 through a coupling for power transmission, and can also be connected to the first rotating shaft 4 through a synchronous pulley, a wedge pulley or other power transmission methods.

[0019] The material distribution plate 5 is an umbrella-shaped structure, and a plurality of upwardly protruding limiting strips 12 are evenly distributed on the upper surface of the material distribution plate 5. A material discharge area is formed between two adjacent limiting strips 12 to facilitate the movement of materials to the edge of the material distribution plate 5. All material discharge areas form a plurality of material discharge area groups evenly distributed around the center of the material distribution plate 5, and the distance between the edge of the material discharge area of ​​each material discharge area group and the center of the material distribution plate 5 is gradually reduced; in this example, Figure 2As shown, there are 16 unloading areas in total, and 4 adjacent unloading areas form a unloading area group. Each unloading area group includes the first unloading area 13, the second unloading area 14, the third unloading area 15 and the fourth unloading area 16, and the distance between the outlet edge position of the four unloading areas and the center of the distribution plate 5 gradually decreases, so that when the materials fall from different unloading areas, they can fall respectively on the position between the outer circle and the inner circle inside the kiln body 1. Since the distribution plate 5 is in a rotating state when working, the uniformity of the material distribution is further improved. The limiting strip 12 is mainly used to play a limiting effect to prevent the materials on the surface of the adjacent unloading areas from moving to the surface of other unloading areas.

[0020] A discharge pipe 2 is arranged inside the kiln body 1 and at a position deviating from the center of the distribution disk 5. The material can fall from the discharge pipe 2 onto the distribution disk 5 below, and during the rotation of the distribution disk 5, the material falls into the kiln body 1 along different discharge areas. The number of discharge pipes 2 can be one or two according to actual conditions, or even multiple discharge pipes 2 can be evenly distributed around the center of the distribution disk 5. The more discharge pipes 2 there are, the better the distribution uniformity. After the material falls from the discharge pipe 2, it can fall on the surface of the distribution disk 5. Since the distribution disk 5 is in a rotating state, the problem of material accumulation during discharge can be avoided.

[0021] A second rotating shaft 10 is installed inside the feeding tube 2, and the axis of the second rotating shaft 10 is arranged parallel to the central axis of the distribution plate 5, and a spiral blade 3 is installed on the outer wall of the second rotating shaft 10. The purpose of this arrangement is to use the second rotating shaft 10 to drive the spiral blade 3 to rotate, so as to use the spiral blade 3 to control the feeding speed of the material in the feeding tube 2, so as to effectively control the feeding time and feeding uniformity according to different working scenarios.

[0022] The upper end of the second rotating shaft 10 extends to the outside of the feeding tube 2 and is connected to the end thereof with a second motor 9 . The second motor 9 is used as a power source to drive the second rotating shaft 10 and the spiral blade 3 to rotate.

[0023] It also includes a receiving hopper 11 installed on the top of the kiln body 1, and the receiving hopper 11 is connected to the discharge pipe 2. When the number of the discharge pipe 2 is one, the discharge pipe 2 is directly connected to the position below the receiving hopper 11. When the number of the discharge pipe 2 is two or more, the upper end of the discharge pipe 2 is evenly distributed around the discharge port of the receiving hopper 11, so that the material in the receiving hopper 11 can evenly enter the discharge pipes 2 in different directions.

[0024] The kiln body 1 also includes a ventilation pipe 7 extending to the inside of the kiln body 1, and a nozzle 6 is installed at the lower end of the ventilation pipe 7. The nozzle 6 is located above the distribution plate 5, wherein the ventilation pipe 7 is used to connect to an external air pump, and high-pressure gas can be introduced into the inside of the kiln body 1 through the ventilation pipe 7, and then sprayed to the surface of the rotating distribution plate 5 through the nozzle 6, so as to blow the materials on the distribution plate 5 that are not easy to discharge, so as to avoid the problem of material blockage in the discharge area.

[0025] When this rotary distributor for a double-chamber lime kiln is in use, the material is first introduced into the receiving hopper 11, and the material enters the discharge pipe 2 through the receiving hopper 11, and the spiral blade 3 is driven to rotate by the second motor 9, so that the material can be evenly discharged in the discharge pipe 2, and the falling material falls on the rotating distribution plate 5. During the rotation of the distribution plate 5, the material can move toward its edge in different discharge areas, and finally fall into the inside of the kiln body 1 from the discharge areas at different edges, thereby achieving the effect of evenly distributing the material inside the kiln body 1. During the distribution process, the gas can be sprayed from the nozzle 6 through the ventilation pipe 7 at a certain time interval, or after the distribution is completed, the material deposited on the distribution plate 5 is cleaned, which replaces the method of vibrating the material in the prior art, and has the advantages of convenient operation, safe use, and extended equipment service life.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary distributor for a double-chamber lime kiln, characterized in that: The invention comprises a rotatable material distribution plate located above the kiln body of a double-chamber lime kiln, the material distribution plate is in an umbrella-shaped structure, a plurality of upwardly protruding limit strips are evenly distributed on the upper surface of the material distribution plate, a material discharge area is formed between two adjacent limit strips to facilitate the movement of materials to the edge of the material distribution plate, all the material discharge areas form a plurality of material discharge area groups evenly distributed around the center of the material distribution plate, and the distance between the edge of the material discharge area of ​​each material discharge area group and the center of the material distribution plate is gradually reduced; a material discharge pipe is provided inside the kiln body and at a position deviated from the center of the material distribution plate, materials can fall from the material discharge pipe onto the material distribution plate below, and during the rotation of the material distribution plate, the materials fall into the kiln body along different material discharge areas.

2. A rotary distributor for a double-chamber lime kiln according to claim 1, characterized in that: A first rotating shaft is installed at the center of the material distribution plate. The first rotating shaft is installed on the kiln body through a bearing. The first rotating shaft passes through the top wall of the kiln body and the upper end is connected to a driving device.

3. A rotary distributor for a double-chamber lime kiln according to claim 1, characterized in that: A second rotating shaft is installed inside the feeding pipe, the axis of the second rotating shaft is parallel to the central axis of the material distribution plate, and spiral blades are installed on the outer wall of the second rotating shaft.

4. A rotary distributor for a double-chamber lime kiln according to claim 3, characterized in that: The upper end of the second rotating shaft extends to the outside of the feeding tube and the end is connected to a second motor.

5. A rotary distributor for a double-chamber lime kiln according to claim 1, characterized in that: It also includes a receiving hopper installed on the top of the kiln body, and the receiving hopper is communicated with the feeding pipe.

6. A rotary distributor for a double-chamber lime kiln according to claim 1, characterized in that: The kiln also includes a ventilation pipe extending to the inside of the kiln body. A nozzle is installed at the lower end of the ventilation pipe, and the nozzle is located above the material distribution plate.

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