CN216296112U

CN216296112U - Multi-flow continuous homogenizing device for cement raw materials

Info

Publication number: CN216296112U
Application number: CN202122402870.XU
Authority: CN
Inventors: 周开晶; 黄兴寿; 甘会朝
Original assignee: Huize Jinyuan Cement Co ltd
Current assignee: Huize Jinyuan Cement Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-04-15
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses a multi-strand continuous homogenizing device for cement raw materials, which comprises a circular plate, a cylinder and a bottom cone, wherein an air outlet pipe and a first vertical cylinder are arranged on the circular plate, a feed pipe is arranged on the first vertical cylinder, a material gathering cone and an air isolating cone are arranged in the cylinder, the cylinder is divided into a material homogenizing chamber, a homogenizing chamber and an air chamber by the material gathering cone and the air isolating cone, a vertical shaft is arranged on the vertical axis of the cylinder, a material homogenizing mechanism is arranged on the vertical shaft in the material homogenizing chamber, a rotary disc is arranged on the vertical shaft at the upper part of the homogenizing chamber, a plurality of blanking holes are uniformly processed on the rotary disc, a plurality of air inlet pipes are uniformly distributed on the circumference of a second vertical cylinder at the center of the bottom cone, a circular shaft is concentrically arranged inside the air inlet ends of the air inlet pipes, spiral blades are arranged on the circular shaft, a group of discharging pipes are arranged on each air inlet pipe, a discharging cone is arranged at the upper end of each discharging pipe, and a plurality of groups of vertical pipes are uniformly distributed on the circumference of the air isolating cone. The utility model has the advantages of difficult blockage of the air inlet, low operation cost, good homogenization effect and obvious economic and social values.

Description

Multi-flow continuous homogenizing device for cement raw materials

Technical Field

The utility model relates to the technical field of cement production, in particular to a multi-stream continuous homogenizing device for cement raw materials.

Background

In the dry production process of cement, in order to reduce the fluctuation among various components in the raw material, the raw material discharged from the mill is further homogenized before entering the kiln, so as to ensure the quality of the raw material entering the kiln, thereby stabilizing the overall quality of the product and improving the yield, the raw material must be homogenized, the raw material homogenization is the most important process link in the production homogenization chain, and plays a role in improving the yield of cement clinker and ensuring the stability of the cement quality, and the quality of the raw material homogenization device is directly related to the quality of the homogenization effect. The raw material homogenizing warehouse commonly used by the novel dry method cement is a pneumatic homogenizing warehouse and is divided into an intermittent homogenizing warehouse and a continuous homogenizing warehouse, the intermittent homogenizing warehouse adopts an air stirring principle and has the defects of large power consumption and the need of multi-warehouse intermittent operation, the continuous homogenizing warehouse is generally applied at present, and the continuous homogenizing warehouse has the advantages of simple process, small occupied area, convenience in operation and low power consumption, and the multi-flow-type continuous raw material homogenizing warehouse is one of the batch homogenizing warehouses. However, the multi-strand flow-type continuous raw material homogenizing silo has some problems in the using process: the cement raw material is not thoroughly homogenized, so that the sintering quality of later-period clinker is unstable; the air inlet is easy to block, the maintenance cost is high, and the homogenization effect of raw materials is also influenced; the cement raw materials are directly accumulated after entering the warehouse, and preliminary mixing homogenization is not carried out, so that the homogenization effect is not ideal. Therefore, it is an objective need to develop a multi-stream continuous homogenizing device for cement raw meal, which has a less likely blockage of the air inlet, low operation cost and good homogenizing effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multi-flow continuous homogenizing device for cement raw materials, which has the advantages of difficult blockage of an air inlet, low operation cost and good homogenizing effect.

The utility model aims to realize the purpose, which comprises a circular plate, a cylinder and a bottom cone which are sequentially connected from top to bottom, wherein an air outlet pipe and a first vertical cylinder are arranged on the circular plate, the first vertical cylinder is positioned at the central position of the circular plate, the upper end of the first vertical cylinder is provided with a sealing plate, the side wall of the upper part of the first vertical cylinder is provided with a feed pipe, a material gathering cone and an air isolating cone are arranged in the cylinder at intervals from top to bottom, the large opening end of the material gathering cone is fixed on the side wall of the cylinder, the small opening end is downward and arranged in a hanging way, the large opening end of the air isolating cone is fixed on the side wall of the cylinder, the cone points are arranged upwards, the material gathering cone and the air isolating cone divide the inner space of the cylinder into a material homogenizing chamber, a homogenizing chamber and an air chamber, a vertical shaft is arranged on the vertical axis of the cylinder, the upper end of the vertical shaft penetrates through the sealing plate and is connected with a driving mechanism in a transmission way, the vertical shaft in the homogenizing chamber is provided with a homogenizing mechanism, the homogenizing mechanism comprises a plurality of homogenizing cones which are arranged at intervals, the vertex of a cone and the vertical axis fixed connection of homogenization awl, macrostoma end down and unsettled arranging, the diameter grow gradually from the top down of a plurality of homogenization awl macrostoma, be provided with the carousel on the vertical axis on homogenization room upper portion, evenly processed has a plurality of blanking holes on the carousel, is provided with the bounding wall on the edge of carousel.

The center department of end awl is provided with the second and erects a section of thick bamboo, the lower extreme of second perpendicular section of thick bamboo is provided with the material awl, the bottom of material awl is provided with the unloading pipe, the lower extreme of unloading pipe is connected with the conveyer, the circumference equipartition has a plurality of air-supply lines on the lateral wall on second perpendicular section of thick bamboo upper portion, the inside of air-supply line air inlet end is provided with the circle axle with one heart, the epaxial helical blade that is provided with of circle, all be provided with a set of unloading pipe on every air-supply line, many unloading pipes of every group are arranged along the axial of air-supply line equidistant, the upper end of unloading pipe is provided with the unloading awl, the upper end and the gas separation awl intercommunication of unloading awl, the circumference equipartition has the multiunit standpipe on the gas separation awl, many standpipes in every group are arranged along the radial equidistant of gas separation awl, the upper end of standpipe is provided with the dust proof cotton, the lower extreme and air chamber intercommunication, multiunit unloading pipe and multiunit standpipe are arranged along the circumference in turn.

Furthermore, the air inlet pipe is obliquely arranged, and the higher end of the air inlet pipe is communicated with the second vertical cylinder.

Further, the air inlet pipe is tangentially communicated with the second vertical cylinder.

Furthermore, a vertical shaft in the first vertical cylinder is provided with a stirring rod.

Furthermore, the upper end of the second vertical cylinder is provided with an arc-shaped filter screen which protrudes upwards,

furthermore, the lower end of the vertical shaft penetrates through the air isolation cone and the arc-shaped filter screen and then is connected with a scraper, and the upper side face of the scraper is matched with the lower surface of the arc-shaped filter screen.

Furthermore, a cyclone dust collector is arranged on one side of the cylinder, the end part of the air outlet pipe is communicated with an air inlet of the cyclone dust collector, a dust exhaust port of the cyclone dust collector is communicated with the cylinder through an inclined pipe, and an air outlet of the cyclone dust collector is communicated with the air inlet pipe through a communicating pipe.

The utility model is used for the homogenization of cement raw meal, when in operation, the cement raw meal enters a first vertical cylinder from a feed pipe and then falls into the cylinder, simultaneously a driving mechanism is started to drive a vertical shaft to rotate, the vertical shaft drives a homogenizing cone and a rotary table to rotate, the raw meal firstly falls on the top homogenizing cone, the raw meal is thrown out to the periphery under the action of the self gravity and the centrifugal force, then falls on the next homogenizing cone in a parabola shape, and completes one-time homogenization in the process, and so on, the raw meal can form one-time homogenization in the falling process, then falls on the rotary table under the action of a material gathering cone, the rotary table cuts the bottom layer of the raw meal in the rotating process, the raw meal falls into a homogenizing chamber from a material falling hole after being homogenized again, and simultaneously ventilates to an air inlet pipe, airflow forms cyclone under the action of a helical blade, when the raw meal falls from a material discharging pipe, the raw meal can be rolled up by the cyclone and enters a second vertical cylinder along with the cyclone, raw material drifts along with the air current in the second chimney, thereby carry out the homogenization once more, raw material whereabouts after the homogenization is sent away from the conveyer, and gas then can let in the homogenization room from the standpipe, the indoor raw material of homogenization then produces funnel effect under air current stirring and action of gravity, cut the multilayer when falling downwards and expect the face and mix, whole process has carried out many times homogenization to raw material, the homogenization effect of raw material is better, and finally, the upper end at the standpipe has set up the dust separation cotton, can prevent the jam of standpipe, reduce the maintenance frequency of equipment, the long-term normal operating of guarantee equipment, thereby reduce the running cost of equipment. The utility model has the advantages of difficult blockage of the air inlet, low operation cost, good homogenization effect and obvious economic and social values.

Drawings

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

FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;

in the figure: 1-round plate, 2-cylinder, 3-bottom cone, 4-air outlet pipe, 5-first vertical cylinder, 6-closing plate, 7-feed pipe, 8-aggregate cone, 9-air-isolating cone, 10-homogenizing chamber, 11-homogenizing chamber, 12-air chamber, 13-vertical shaft, 14-homogenizing cone, 15-rotary table, 16-blanking hole, 17-second vertical cylinder, 18-cone, 19-conveyor, 20-air inlet pipe, 21-circular shaft, 22-helical blade, 23-blanking pipe, 24-blanking cone, 25-vertical pipe, 26-dust isolating cotton, 27-stirring rod, 28-arc filter screen, 29-scraper, 30-cyclone dust collector, 31-inclined pipe and 32-communicating pipe.

Detailed Description

The present invention is further described with reference to the drawings, but the present invention is not limited thereto in any way, and any modification or improvement based on the present invention is within the protection scope of the present invention.

As shown in figures 1-2, the utility model comprises a circular plate 1, a cylinder 2 and a bottom cone 3 which are connected in sequence from top to bottom, wherein an air outlet pipe 4 and a first vertical cylinder 5 are arranged on the circular plate 1, the first vertical cylinder 5 is positioned at the central position of the circular plate 1, a sealing plate 6 is arranged at the upper end of the first vertical cylinder 5, a feed pipe 7 is arranged on the side wall of the upper part of the first vertical cylinder 5, a material gathering cone 8 and an air isolating cone 9 are arranged in the cylinder 2 at intervals from top to bottom, the large opening end of the material gathering cone 8 is fixed on the side wall of the cylinder 2, the small opening end is arranged downwards and is suspended, the large opening end of the air isolating cone 9 is fixed on the side wall of the cylinder 2, the cone tips are arranged upwards, the material gathering cone 8 and the air isolating cone 9 divide the internal space of the cylinder 2 into a material homogenizing chamber 10, a homogenizing chamber 11 and an air chamber 12, a vertical shaft 13 is arranged on the vertical axis of the cylinder 2, the upper end of the vertical shaft 13 penetrates through the sealing plate 6 and is connected with a driving mechanism in a transmission way, the driving mechanism is of the existing structure, can use motor collocation gearbox, be used for driving vertical axis 13 to rotate, and control and adjust the rotational speed, be provided with refining mechanism on the vertical axis 13 in the refining room 10, refining mechanism includes a plurality of interval arrangement's refining awl 14, refining awl 14's vertex of a cone and vertical axis 13 fixed connection, macrostoma end is down and unsettled arranges, the diameter grow gradually from the top down of a plurality of refining awl 14 macrostoma end, be provided with carousel 15 on the vertical axis 13 on homogenization room 11 upper portion, evenly processing has a plurality of blanking holes 16 on carousel 15, be provided with the bounding wall on carousel 15's the edge, the effect of bounding wall prevents that the raw material from falling down from carousel 15's edge, influence the homogenization effect of raw material.

A second vertical tube 17 is arranged at the center of the bottom cone 3, a cone 18 is arranged at the lower end of the second vertical tube 17, a blanking tube is arranged at the bottom of the cone 18, a conveyor 19 is connected to the lower end of the blanking tube, the conveyor 19 is of an existing structure and is used for conveying homogenized raw materials, a plurality of air inlet tubes 20 are uniformly distributed on the upper portion of the side wall of the second vertical tube 17 along the circumference, circular shafts 21 are concentrically arranged in the air inlet ends of the air inlet tubes 20, spiral blades 22 are arranged on the circular shafts 21, a group of blanking tubes 23 are arranged on each air inlet tube 20, a plurality of blanking tubes 23 in each group are arranged at equal intervals along the axial direction of the air inlet tube 20, a blanking cone 24 is arranged at the upper end of each blanking tube 23, the upper end of the blanking cone 24 is communicated with the air isolation cone 9, a plurality of groups of vertical tubes 25 are uniformly distributed on the circumference of the air isolation cone 9, the plurality of vertical tubes 25 in each group are arranged at equal intervals along the radial direction of the air isolation cone 9, dust isolation cotton 26 is arranged at the upper end of the vertical tubes 25, the lower end is communicated with the air chamber 12, and a plurality of groups of blanking pipes 23 and a plurality of groups of vertical pipes 25 are arranged alternately along the circumference.

The utility model is used for the homogenization of cement raw meal, during the operation, the cement raw meal enters the first vertical cylinder 5 from the feed pipe 7, then falls into the cylinder 2, simultaneously the driving mechanism is started to drive the vertical shaft 13 to rotate, the vertical shaft 13 drives the homogenizing cone and the rotating disc to rotate, the raw meal firstly falls on the topmost homogenizing cone 14, the raw meal is thrown out to the periphery under the action of the self gravity and the centrifugal force, then falls on the next homogenizing cone 14 in a parabola shape, and completes one-time homogenization in the process, and so on, the raw meal forms one-time homogenization in the falling process, then falls on the rotating disc 15 under the action of the material gathering cone 8, the rotating disc 15 cuts the bottom layer of the raw meal in the rotating process, the raw meal falls into the chamber 11 from the blanking hole 16 after being homogenized again, and simultaneously flows into the air inlet pipe 20, the air current forms homogenization whirlwind under the action of the helical blade 22, when the raw meal falls from the blanking pipe 23, the raw meal can be rolled up by the whirlwind and enters the second vertical barrel 17 along with the whirlwind, the raw meal drifts along with the air current in the second vertical barrel 17, thus homogenize again, the raw meal after homogenizing falls and is sent away from the conveyer 19, and the gas can be introduced into the homogenizing chamber 11 from the standpipe 25, the raw meal in the homogenizing chamber 11 produces the funnel effect under the action of air current stirring and gravity, cut the multilayer lining level and mix when falling downwards, the whole process homogenizes the raw meal many times, the homogenizing effect of the raw meal is better, finally, the upper end of the standpipe 25 has been set up the dust-proof cotton 26, can prevent the blockage of the standpipe 25, reduce the maintenance frequency of the apparatus, ensure the long-term normal operation of the apparatus, thus reduce the running cost of the apparatus.

The air inlet pipe 20 is obliquely arranged, the higher end of the air inlet pipe 20 is communicated with the second vertical cylinder 17, air flow mixed with raw materials can flow upwards to form throwing, and multiple strands of thrown air flow can collide with the second vertical cylinder 17, so that the homogenization efficiency of the raw materials is improved.

The air inlet pipe 20 is tangentially communicated with the second vertical cylinder 17, and when the air flow mixed with the raw materials enters the second vertical cylinder 17, a rotational flow can be formed in the second vertical cylinder 17, so that the raw materials are further homogenized.

The vertical shaft 13 in the first vertical shaft 5 is provided with a stirring rod 27, and the stirring rod 27 can stir the raw meal when the raw meal enters the first vertical shaft 5, so that the homogenization efficiency of the raw meal is improved.

The upper end of the second vertical cylinder 17 is provided with an upward convex arc-shaped filter screen 28, and raw materials in the gas can be filtered through the arrangement of the arc-shaped filter screen 28, so that the raw materials are prevented from being mixed in the gas to cause the blockage of the vertical pipe 25.

The lower end of the vertical shaft 13 passes through the air isolation cone 9 and the arc-shaped filter screen 28 and then is connected with a scraper 29, the upper side surface of the scraper 29 is matched with the lower surface of the arc-shaped filter screen 28, when in operation, the scraper 29 rotates along with the vertical shaft 13, raw materials adhered to the arc-shaped filter screen 28 are scraped off in the rotating process, and the arc-shaped filter screen 28 is kept to have better filtering effect all the time.

One side of drum 2 is provided with cyclone 30, cyclone 30 is the existing equipment, be used for separating the raw meal granule that mix with in the gas, the tip of outlet duct 4 communicates with the air inlet of cyclone 30, the dust exhaust mouth of cyclone 30 communicates with drum 2 through pipe chute 31, the gas outlet of cyclone 30 communicates with air-supply line 20 through communicating pipe 32, mix with certain raw meal granule in the gas of outlet duct 4, if directly discharging, both can cause the pollution of environment, still can cause the waste of raw meal, collect and return to drum 2 raw meal granule through cyclone 30, can avoid the extravagant problem of environmental pollution and raw meal, and the same reason, still have certain dust in the gas behind cyclone 30, the evacuation also can pollute the environment, return it to drum 2, can avoid this problem.

Claims

1. The multi-strand continuous homogenizing device for the cement raw materials is characterized by comprising a circular plate (1), a cylinder (2) and a bottom cone (3) which are sequentially connected from top to bottom, wherein an air outlet pipe (4) and a first vertical cylinder (5) are arranged on the circular plate (1), the first vertical cylinder (5) is positioned at the central position of the circular plate (1), a sealing plate (6) is arranged at the upper end of the first vertical cylinder (5), a feeding pipe (7) is arranged on the side wall of the upper part of the first vertical cylinder (5), a material gathering cone (8) and an air isolating cone (9) are arranged in the cylinder (2) at intervals from top to bottom, the large opening end of the material gathering cone (8) is fixed on the side wall of the cylinder (2), the small opening end of the material gathering cone faces downwards and is arranged in a hanging manner, the large opening end of the air isolating cone (9) is fixed on the side wall of the cylinder (2), the cone tip faces upwards, and the material gathering cone (8) and the air isolating cone (9) divide the inner space of the cylinder (2) into a material homogenizing chamber (10), The device comprises a homogenizing chamber (11) and an air chamber (12), wherein a vertical shaft (13) is arranged on the vertical axis of a cylinder (2), the upper end of the vertical shaft (13) penetrates through a sealing plate (6) and then is connected with a driving mechanism in a transmission manner, a refining mechanism is arranged on the vertical shaft (13) in the refining chamber (10), the refining mechanism comprises a plurality of refining cones (14) which are arranged at intervals, the tops of the refining cones (14) are fixedly connected with the vertical shaft (13), the large-opening ends face downwards and are arranged in a hanging manner, the diameters of the large-opening ends of the plurality of refining cones (14) are gradually increased from top to bottom, a rotary table (15) is arranged on the vertical shaft (13) at the upper part of the homogenizing chamber (11), a plurality of blanking holes (16) are uniformly processed on the rotary table (15), and a surrounding plate is arranged on the edge of the rotary table (15);

a second vertical cylinder (17) is arranged at the center of the bottom cone (3), a cone (18) is arranged at the lower end of the second vertical cylinder (17), a blanking pipe is arranged at the bottom of the cone (18), a conveyor (19) is connected to the lower end of the blanking pipe, a plurality of air inlet pipes (20) are uniformly distributed on the side wall of the upper portion of the second vertical cylinder (17) along the circumference, a circular shaft (21) is concentrically arranged inside the air inlet end of each air inlet pipe (20), spiral blades (22) are arranged on the circular shaft (21), a group of blanking pipes (23) are arranged on each air inlet pipe (20), a plurality of groups of the blanking pipes (23) in each group are uniformly distributed along the axial direction of the air inlet pipes (20), a blanking cone (24) is arranged at the upper end of each blanking pipe (23), the upper end of each blanking cone (24) is communicated with the air isolation cone (9), a plurality of groups of vertical pipes (25) are uniformly distributed on the circumference of the air isolation cone (9), and the plurality of vertical pipes (25) in each group are uniformly distributed along the radial direction of the air isolation cone (9), the upper end of the vertical pipe (25) is provided with dust insulation cotton (26), the lower end of the vertical pipe is communicated with the air chamber (12), and the plurality of groups of discharging pipes (23) and the plurality of groups of vertical pipes (25) are alternately arranged along the circumference.

2. The apparatus for the continuous homogenization of multiple streams of cement raw materials as claimed in claim 1, wherein the air inlet duct (20) is disposed obliquely, and the higher end of the air inlet duct (20) is communicated with the second shaft (17).

3. A device for the continuous homogenisation of a multi-stream of cement raw meal according to claim 1, characterized in that said air inlet duct (20) communicates tangentially with said second chimney (17).

4. A device for the continuous homogenisation of a multi-stream of cement raw meal according to claim 1, characterized in that the vertical shaft (13) in the first shaft (5) is provided with a stirring rod (27).

5. A device for the continuous homogenisation of cement raw materials in multiple streams according to claim 1, characterised in that the upper end of the second chimney (17) is provided with an upwardly projecting curved sieve (28).

6. The apparatus for the continuous homogenization of multiple flows of cement raw materials as claimed in claim 5, wherein the lower end of the vertical shaft (13) is connected to a scraper (29) after passing through the air-isolating cone (9) and the arc-shaped screen (28), and the upper side of the scraper (29) is fitted with the lower surface of the arc-shaped screen (28).

7. The apparatus for the continuous homogenization of multiple flows of cement raw meal according to claim 1, wherein a cyclone (30) is provided at one side of the cylinder (2), the end of the outlet duct (4) is connected to the inlet of the cyclone (30), the dust outlet of the cyclone (30) is connected to the cylinder (2) through an inclined duct (31), and the outlet of the cyclone (30) is connected to the inlet duct (20) through a communicating duct (32).