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CN-121994538-A - Chute sampler that cement manufacture used

CN121994538ACN 121994538 ACN121994538 ACN 121994538ACN-121994538-A

Abstract

The application provides a chute sampler for cement production, which comprises a homogenizing and scattering device, a converging device and a rotary sampling device, wherein the homogenizing and scattering device, the converging device and the rotary sampling device are sequentially arranged along the flow direction of materials, the homogenizing and scattering device comprises a suspended chain and is used for scattering the materials and buffering kinetic energy, the converging device comprises two inclined guide plates and is used for converging the materials with the whole section of a chute to a sampling area, the rotary sampling device comprises a driving piece, a sampling tube and a controller, and the driving piece drives the sampling tube to rotate so that a material taking opening of the sampling tube is switched between a sampling station facing the materials and a station opposite to the materials. The application ensures the representativeness of the sample by the combined action of homogenization, diversion convergence and rotary interception of the chain, effectively reduces the abrasion of parts, realizes full-automatic sampling, and solves the problems of poor representativeness, serious abrasion and low degree of automation of the sampling in the prior art.

Inventors

  • YUAN YIBIN
  • CHEN ZIYANG
  • YU KAI
  • XU ZEBING
  • SUN KAIMING
  • WANG DA

Assignees

  • 依泰可(诸暨)智能装备有限公司

Dates

Publication Date
20260508
Application Date
20260319

Claims (10)

  1. 1. The chute sampler for cement production is arranged on a conveying chute (5) of a cement production line and is characterized by comprising a homogenizing and scattering device (1), a converging device (2) and a rotary sampling device (3) which are sequentially arranged along the material flow direction; The homogenizing and scattering device (1) is arranged at the inner upstream of the chute (5) and comprises a plurality of chains (12) which are suspended and used for scattering and homogenizing materials flowing through the chute (5); The converging device (2) is arranged at the downstream of the homogenizing and scattering device (1) and comprises two inclined guide plates (21) which are arranged oppositely, the two inclined guide plates (21) are respectively fixed on the inner walls of the two sides of the chute (5), and a converging channel from wide to narrow is formed in the width direction of the chute (5) and is used for converging the materials with the whole section of the chute (5) to a preset sampling area; the rotary sampling device (3) is arranged at the downstream of the confluence device (2), and the material taking opening (321) is arranged corresponding to a sampling area formed by the confluence device (2); The rotary sampling device (3) comprises a driving piece, a sampling tube (32) and a controller; One end of the sampling tube (32) is provided with a material taking hole (321) and the other end is provided with a material discharging hole (322), the sampling tube (32) is rotatably arranged on the chute (5), and the material taking hole (321) is positioned in the chute (5); The driving end of the driving piece is in transmission connection with the sampling tube (32) and is used for driving the sampling tube (32) to rotate around the axial center line of the sampling tube so as to enable the material taking port (321) to be switched between a sampling station facing the material flowing direction and a avoiding station facing away from the material flowing direction; the controller is electrically connected with the driving piece and used for controlling the action of the driving piece.
  2. 2. A chute sampler for cement production according to claim 1, characterized in that said homogenizing and breaking device (1) further comprises a mounting cross member (11) fastened across the upper part of the chute (5), the upper end of said chain (12) being detachably suspended from said mounting cross member (11) by means of a connecting member, the lower end of the chain (12) being free to extend and being proximate to the bottom of the chute (5).
  3. 3. The chute sampler for cement production according to claim 1, wherein the inclined guide plate (21) of the converging device (2) comprises a front guide part and a rear gathering part, the front guide part smoothly extends along the material flow direction and is used for guiding the material to move towards the center of the chute (5), and the plate surface distance of the rear gathering part gradually reduces along the material flow direction to finally form a discharge hole (322).
  4. 4. A chute sampler for cement production according to claim 1, characterized in that the rotary sampling device (3) further comprises a mounting flange (33) and a blanking switch (34); the mounting flange (33) is of an annular sealing structure, is fixedly sleeved at the position of the sampling tube (32) penetrating through the side wall of the chute (5), and is used for realizing rotary sealing between the sampling tube (32) and the wall of the chute (5); The blanking switch (34) is arranged at a discharge hole (322) of the sampling tube (32) and is electrically connected with the controller, and is used for being opened when the sampling tube (32) is in a sampling station and being closed when the sampling tube (32) is in an avoidance station.
  5. 5. A chute sampler for cement production according to claim 4, characterized in that said rotary sampling device (3) further comprises a lower gate valve (35) arranged downstream of the discharge channel, said lower gate valve (35) being electrically connected to said controller for controlling the final discharge of accumulated samples.
  6. 6. The chute sampler for cement production according to claim 4 or 5, wherein a sampling program is preset in the controller, the sampling program is configured to control the driving member to rotate forward by a first preset angle in response to a sampling instruction, so that the sampling tube (32) is switched to a sampling station, simultaneously control the blanking switch (34) to be opened, control the driving member to rotate reversely by a second preset angle to reset after maintaining the first preset time, so that the sampling tube (32) is switched to an avoidance station, simultaneously control the blanking switch (34) to be closed, and the sampling program is further configured to circularly execute the actions for a plurality of times so as to realize a plurality of times of sampling.
  7. 7. A chute sampler for cement production according to claim 1, characterized in that the chute (5) sampler further comprises an observation device (4), the observation device (4) being arranged on the side wall of the chute (5) between the confluence device (2) and the rotary sampling device (3); the observation device (4) comprises a manhole assembly (41) and a mounting piece (42); the manhole assembly (41) comprises an observation port formed in the side wall of the chute (5), a sealing cover (411) for sealing the observation port and a transparent window (412) arranged on the sealing cover (411); The mounting piece (42) is used for sealing and fixing the manhole assembly (41) on the side wall of the chute (5).
  8. 8. A chute sampler for cement production according to claim 1, characterized in that the driving member is a rotary cylinder (31) or a servo motor.
  9. 9. A chute sampler for cement production according to claim 1, characterized in that the take-out opening (321) of the sampling tube (32) is of a bevel configuration.
  10. 10. A chute sampler for cement production according to claim 3 and characterized in that the inclined guide plate (21) is mounted on the inner wall of the chute (5) by a fixing member (22) with oblong holes, so that the mounting angle of the inclined guide plate (21) is adjustable.

Description

Chute sampler that cement manufacture used Technical Field The invention relates to the technical field of cement sampling, in particular to a chute sampler for cement production. Background Cement is an important building material and is mainly made up by using limestone, clay and other raw materials through the processes of calcining and grinding. In the cement production process, indexes such as chemical components, fineness and the like of semi-finished products or finished products are subjected to real-time assay analysis, which is a key link for guaranteeing the quality stability of cement, and an air conveying chute (for short, a chute) is widely applied to conveying easily fluidized powdery materials such as cement, raw meal and the like due to simple structure and low energy consumption. In order to sample and analyze the materials in the chute, the traditional method is mostly manual operation or adopts a simple mechanical sampling device. For example, there is a manually controlled screw sampling device in the prior art that requires an operator to extend its sampling tube into the interior of the chute for interception. In the prior art, during the use process of cement sampling, the following technical defects exist: (1) The chute section is larger, the flow speed of the internal materials is higher in a fluidization state, the sampling part of the sampling device directly stretches into the main runner, the sampling part is impacted and ground by the high-speed materials for a long time, the abrasion of core parts is fast, the maintenance cost is high, and the service life of equipment is short; (2) The sample representativeness is poor, the traditional manual sampling or fixed sampling port can only cut out materials with a certain fixed point or a certain section of the chute, and the samples obtained by the mode of 'local cutting' often deviate from the whole real average property of the materials due to the phenomena of particle classification, uneven flow rate and the like (such as different properties of the materials at the edge and the center) when the materials flow in the chute, so that the actual conditions of production are difficult to be accurately reflected, and errors are brought to subsequent assay analysis; (3) The potential safety hazard and the low efficiency are that an operator is required to approach running equipment for manual sampling, the risks of mechanical injury and dust pollution exist, meanwhile, the manual operation efficiency is low, the continuous, timed and automatic sampling requirements of 24 hours cannot be realized, the production cost is increased, and the quality control requirement of the modern large-scale cement production is difficult to meet; therefore, we improve on this and propose a chute sampler for cement production. Disclosure of Invention The invention aims to provide a chute sampler for cement production, which aims to solve the technical problems of poor sampling representativeness, serious component abrasion and low automation degree in the prior art. In order to achieve the above object, the present invention provides the following technical solutions: a chute sampler for cement production to improve the above problems. The application is specifically as follows: A chute sampler for cement production comprises a homogenizing and scattering device, a converging device and a rotary sampling device which are sequentially arranged along the material flow direction; the homogenizing and scattering device is arranged at the upper stream of the inside of the chute and comprises a plurality of chains which are hung and arranged, and is used for scattering and homogenizing materials flowing through the chute; The converging device is arranged at the downstream of the homogenizing and scattering device and comprises two inclined guide plates which are oppositely arranged, the two inclined guide plates are respectively fixed on the inner walls of the two sides of the chute, and a converging channel from wide to narrow is formed in the width direction of the chute and is used for converging the materials with the whole cross section of the chute to a preset sampling area; the rotary sampling device is arranged at the downstream of the converging device, and the material taking opening of the rotary sampling device is arranged corresponding to a sampling area formed by the converging device; the rotary sampling device comprises a driving piece, a sampling tube and a controller; one end of the sampling tube is a material taking opening, the other end of the sampling tube is a material discharging opening, the sampling tube is rotatably arranged on the chute, and the material taking opening is positioned in the chute; The driving end of the driving piece is in transmission connection with the sampling tube and is used for driving the sampling tube to rotate around the axial center line of the sampling tube so as to enable the material taking port to