Cement fineness screen analysis instrument

Abstract

The utility model relates to the technical field of cement detection, in particular to a cement fineness screen analysis instrument. The technical problems that according to an existing screen analysis instrument, the fineness of cement is generally determined through screening and screen residue calculation, due to the fact that cement materials have certain large particles, part of the large particles may block pores of a screen during common screening, the fine particles are difficult to pass through the screen, the screening precision is affected, and the fineness testing result is inaccurate are solved. According to the technical scheme, the cement fineness screen analysis instrument comprises a shell and further comprises a screening assembly, a driving assembly and a collecting assembly; gas is conveyed into the multiple sets of flowing pipes to be sprayed out through the gas inlet pipe, cement particles at the upper end of the screen are evenly blown by the gas sprayed out of the multiple sets of flowing pipes, the particles are in a flow state under the action of airflow and move along with the airflow, and the situation that part of the particles cannot pass through the screen due to uneven airflow is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cement detection, in particular to a cement fineness sieve analyzer. Background Art

[0002] A cement fineness sieve analyzer is a special instrument for detecting and analyzing the fineness of cement particles. It is mainly used to determine the size distribution of cement particles to ensure that the quality of cement meets the relevant standard requirements. In the process of using the existing sieve analyzers, screening and calculating the residue are usually adopted to determine the fineness of cement. Due to the existence of some relatively large particles in the cement material, some relatively large particles may block the pores of the sieve mesh during ordinary screening, resulting in difficulty for fine particles to pass through the sieve mesh, affecting the screening accuracy and leading to inaccurate fineness test results. Therefore, we propose a cement fineness sieve analyzer to solve the problems raised above. Content of the Utility Model

[0003] In order to overcome the problems of the existing sieve analyzers that usually adopt screening and calculating the residue to determine the fineness of cement. Due to the existence of some relatively large particles in the cement material, some relatively large particles may block the pores of the sieve mesh during ordinary screening, resulting in difficulty for fine particles to pass through the sieve mesh, affecting the screening accuracy and leading to inaccurate fineness test results.

[0004] The technical solution of the utility model is as follows: A cement fineness sieve analyzer includes a housing, and further includes a screening assembly, a driving assembly and a collecting assembly; a screening assembly for screening cement particles to analyze the fineness of cement is installed at the upper end of the housing, a driving assembly for providing a vibration force to effectively screen the cement particles is installed inside the housing, and a collecting assembly for collecting and storing the fine particles passing through the sieve plate during the screening process is installed outside the screening assembly.

[0005] Preferably, the gas is introduced into multiple groups of flow tubes through the intake pipe and ejected, and the gas ejected from the multiple groups of flow tubes evenly blows the cement particles at the upper end of the sieve mesh, causing the particles to be in a fluidized state under the action of the air flow and move along with the air flow, avoiding the situation where some particles cannot pass through the sieve mesh due to uneven air flow. The driving motor is used in combination with the connecting rod to connect multiple groups of springs to drive the screening cylinder to assist in vibrating and screening, enabling the sieve mesh to perform efficient screening under the action of vibration, avoiding blockage of large-sized particles, assisting the fine particles to move and distribute fully inside the screening cylinder, ensuring the full screening of fine particles, reducing screening omissions. At the same time, the sieve mesh inside the screening cylinder can be selected with different pore sizes according to needs to precisely control the screening size of cement particles, meeting different fineness requirements. Meanwhile, the screening cylinder performs sealed screening to ensure that the internal air flow evenly passes through the sieve mesh, avoiding uneven screening of particles caused by uneven air flow. By using the limit bolts to fix the threads after the cover plate is buckled, it is ensured that the cover plate maintains the correct position after buckling, effectively preventing loosening caused by vibration or temperature changes during use, ensuring the long-term stable operation of the equipment. The suction module is used to drive the outlet pipe to transfer the screened particles into the collection cylinder for storage, ensuring that the screened particles are accurately transferred to the collection cylinder, avoiding particle omission and cross-contamination, and facilitating subsequent analysis and management of the particles.

[0006] Preferably, the screening assembly includes a support plate, a screening cylinder, a cover plate, support columns, limit bolts, a feed pipe, a sealing cover, an intake pipe, flow tubes, and a sieve mesh. The upper end of the support plate is provided with a screening cylinder, the upper end of the screening cylinder is provided with a cover plate, the cover plate is buckled and sealed with the screening cylinder, and multiple groups of flow tubes are arranged around the inside of the cover plate. One end of the flow tube is provided with an intake pipe at the upper end of the cover plate. The gas is introduced into multiple groups of flow tubes through the intake pipe and ejected, and the gas ejected from the multiple groups of flow tubes evenly blows the cement particles at the upper end of the sieve mesh, causing the particles to be in a fluidized state under the action of the air flow and move along with the air flow, avoiding the situation where some particles cannot pass through the sieve mesh due to uneven air flow, reducing errors in the screening process, and achieving efficient screening of cement.

[0007] Preferably, the upper end of the cover plate is provided with a feed pipe, the feed pipe passes through the cover plate and extends to the inside, the upper end of the feed pipe is provided with a sealing cover, a sieve mesh is arranged inside the screening cylinder, and a storage cavity is arranged below the sieve mesh inside the screening cylinder. The cement is screened by the sieve mesh inside the screening cylinder. The sieve mesh inside the screening cylinder can be selected with different pore sizes according to needs to precisely control the screening size of cement particles, meeting different fineness requirements. Meanwhile, the screening cylinder performs sealed screening, which can ensure that the internal air flow evenly passes through the sieve mesh, avoiding uneven screening of particles caused by uneven air flow.

[0008] Preferably, support columns are symmetrically arranged at the upper end of the support plate, and limit bolts are arranged on the outer wall of the cover plate. The support plate is fixedly connected to the cover plate through the support columns. After the cover plate is buckled, thread fixing is carried out by using the limit bolts to ensure that the cover plate maintains the correct position after buckling, effectively preventing loosening caused by vibration or temperature changes during use, and ensuring the long-term stable operation of the equipment.

[0009] Preferably, the driving assembly includes a spring, a docking plate, a connecting rod, a driving motor and a positioning block. A general spring is arranged at the lower end of the support plate. A damper is arranged inside the spring. A docking plate is arranged at one end of the spring. The spring is fixedly connected to the housing through the docking plate. A driving motor is arranged inside the housing. A connecting rod is arranged at one end of the driving motor. A positioning block is arranged at the lower end of the support plate. The connecting rod passes through the housing and is movably connected to the positioning block. By using the driving motor combined with the connecting rod to drive multiple groups of springs to drive the screening cylinder for auxiliary vibration screening, the sieve mesh can perform efficient screening under the action of vibration, avoid blockage of large-sized particles, assist small particles to move and distribute fully in the screening cylinder, ensure the full screening of fine particles, and reduce screening omission.

[0010] Preferably, the collection assembly includes a collection cylinder, a closed cover, an air outlet pipe, a suction module, a discharge pipe and a support rod. An air outlet pipe is arranged between the collection cylinder and the screening cylinder. A suction module is arranged at the lower end of the air outlet pipe. The air outlet pipe passes through the collection cylinder and extends to the inside. By using the suction module to drive the air outlet pipe to transfer the screened particles into the collection cylinder for storage, it is ensured that the screened particles are accurately transferred to the collection cylinder, avoiding particle omission and cross-contamination, and facilitating subsequent analysis and management of the particles.

[0011] Preferably, a closed cover is arranged at the upper end of the collection cylinder, a support rod is arranged at the lower end of the collection cylinder, the collection cylinder is fixedly connected to the housing through the support rod, and a discharge pipe is arranged on the outer wall of the collection cylinder. By using the support rod to assist in supporting the collection cylinder, stable collection of the screened cement is achieved.

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

[0013] 1. Compared with traditional sieving machines, by introducing gas into multiple sets of flow tubes through an intake pipe and ejecting it, the gas ejected from the multiple sets of flow tubes evenly blows the cement particles at the upper end of the sieve mesh, making the particles in a fluidized state under the action of the air flow and moving along with the air flow. This avoids the situation where some particles cannot pass through the sieve mesh due to uneven air flow. A driving motor is used in combination with a connecting rod to connect multiple springs to drive the screening cylinder to vibrate and assist in screening, enabling the sieve mesh to perform efficient screening under the vibration effect, preventing large-sized particles from getting blocked, assisting small particles to move and distribute fully inside the screening cylinder, ensuring the full screening of fine particles, reducing screening omissions. At the same time, the sieve mesh inside the screening cylinder can select different pore sizes according to needs to precisely control the screening size of cement particles, meeting different fineness requirements. Meanwhile, the screening cylinder conducts sealed screening to ensure that the internal air flow evenly passes through the sieve mesh, avoiding uneven screening of particles caused by uneven air flow.

[0014] 2. By using a limit bolt to fix the thread after the cover plate is buckled, it ensures that the cover plate maintains the correct position after buckling, effectively preventing loosening caused by vibration or temperature changes during use, and ensuring the long-term stable operation of the equipment. An extraction module is used to drive the outlet pipe to transfer the screened particles into the collection cylinder for storage, ensuring that the screened particles are accurately transferred to the collection cylinder, avoiding particle omission and cross-contamination, and facilitating subsequent analysis and management of the particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the structural schematic diagram of the screening component of the present utility model;

[0017] Figure 3 is the structural schematic diagram of the flow tube of the present utility model;

[0018] Figure 4 is the structural schematic diagram of the driving component of the present utility model.

[0019] DESCRIPTION OF THE REFERENCE NUMERALS: 1. Housing; 2. Screening component; 201. Support plate; 202. Screening cylinder; 203. Cover plate; 204. Support column; 205. Limit bolt; 206. Feed pipe; 207. Sealing cover; 208. Intake pipe; 209. Flow tube; 210. Sieve mesh; 3. Driving component; 301. Spring; 302. Docking plate; 303. Connecting rod; 304. Driving motor; 305. Positioning block; 4. Collection component; 401. Collection cylinder; 402. Sealing cover; 403. Outlet pipe; 404. Extraction module; 405. Discharge pipe; 406. Support rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Please refer to Figures 1-4 , the present utility model provides an embodiment: a cement fineness sieve analyzer, which includes a housing 1, and further includes a screening assembly 2, a driving assembly 3 and a collecting assembly 4; a screening assembly 2 for screening cement particles to analyze the fineness of cement is installed at the upper end of the housing 1, a driving assembly 3 for providing a vibration force to effectively screen the cement particles is installed inside the housing 1, and a collecting assembly 4 for collecting and storing the fine particles passing through the sieve plate during the screening process is installed outside the screening assembly 2.

[0022] Please refer to Figures 1-2 , in this embodiment, the screening assembly 2 includes a support plate 201, a screening cylinder 202, a cover plate 203, support columns 204, limit bolts 205, a feed pipe 206, a sealing cover 207, an air inlet pipe 208, a flow pipe 209 and a sieve mesh 210. A screening cylinder 202 is provided at the upper end of the support plate 201, a cover plate 203 is provided at the upper end of the screening cylinder 202, the cover plate 203 is buckled and sealed with the screening cylinder 202, and a plurality of groups of flow pipes 209 are arranged around the inside of the cover plate 203. One end of the flow pipe 209 is provided with an air inlet pipe 208 at the upper end of the cover plate 203. By introducing gas into the plurality of groups of flow pipes 209 through the air inlet pipe 208 and spraying it out, the gas sprayed out by the plurality of groups of flow pipes 209 evenly blows the cement particles on the upper end of the sieve mesh 210, so that the particles are in a fluid state under the action of the air flow and move along with the air flow, avoiding the situation that some particles cannot pass through the sieve mesh 210 due to uneven air flow, reducing the error during the screening process, and realizing the efficient screening of cement. An inlet pipe 206 is provided at the upper end of the cover plate 203, the inlet pipe 206 passes through the cover plate 203 and extends to the inside, a sealing cover 207 is provided at the upper end of the inlet pipe 206, a sieve mesh 210 is provided inside the screening cylinder 202, and a storage cavity is provided below the sieve mesh 210 inside the screening cylinder 202. By screening the cement with the sieve mesh 210 inside the screening cylinder 202, the sieve mesh 210 inside the screening cylinder 202 can be selected with different pore sizes according to needs to accurately control the screening size of the cement particles and meet different fineness requirements. At the same time, the screening cylinder 202 is sealed for screening, which can ensure that the internal air flow evenly passes through the sieve mesh 210 and avoid uneven screening of the particles due to uneven air flow.

[0023] Please refer to Figures 1-3, in this embodiment, support columns 204 are symmetrically arranged at the upper end of the support plate 201, and a limit bolt 205 is arranged on the outer wall of the cover plate 203. The support plate 201 is fixedly connected to the cover plate 203 through the support columns 204. After the cover plate 203 is buckled, the limit bolt 205 is used for thread fixation to ensure that the cover plate 203 maintains the correct position after buckling, effectively preventing loosening caused by vibration or temperature changes during use, and ensuring the long-term stable operation of the device. The driving assembly 3 includes a spring 301, a docking plate 302, a connecting rod 303, a driving motor 304, and a positioning block 305. A general spring 301 is arranged at the lower end of the support plate 201. A damper is arranged inside the spring 301. One end of the spring 301 is provided with a docking plate 302. The spring 301 is fixedly connected to the housing 1 through the docking plate 302. A driving motor 304 is arranged inside the housing 1. One end of the driving motor 304 is provided with a connecting rod 303. A positioning block 305 is arranged at the lower end of the support plate 201. The connecting rod 303 passes through the housing 1 and is movably connected to the positioning block 305. By using the driving motor 304 combined with the connecting rod 303 to drive multiple groups of springs 301 to drive the screening cylinder 202 for auxiliary vibration screening, the screen 210 performs efficient screening under the action of vibration, assisting the fine particles to fully move and distribute inside the screening cylinder 202, ensuring the full screening of the fine particles and reducing screening omissions.

[0024] Please refer to Figures 2-4 , in this embodiment, the collection assembly 4 includes a collection cylinder 401, a closing cover 402, an air outlet pipe 403, a suction module 404, a discharge pipe 405, and a support rod 406. An air outlet pipe 403 is arranged between the collection cylinder 401 and the screening cylinder 202. A suction module 404 is arranged at the lower end of the air outlet pipe 403. The air outlet pipe 403 passes through the collection cylinder 401 and extends to the inside. By using the suction module 404 to drive the air outlet pipe 403 to transfer the screened particles to the inside of the collection cylinder 401 for storage, it is ensured that the screened particles are accurately transferred to the collection cylinder 401, avoiding particle omission and cross-contamination, and facilitating subsequent analysis and management of the particles. A closing cover 402 is arranged at the upper end of the collection cylinder 401. A support rod 406 is arranged at the lower end of the collection cylinder 401. The collection cylinder 401 is fixedly connected to the housing 1 through the support rod 406. A discharge pipe 405 is arranged on the outer wall of the collection cylinder 401. By using the support rod 406 to assist in supporting the collection cylinder 401, the stable collection of the screened cement is realized.

[0025] When working, first add the cement material to be screened and analyzed into the inside of the screening cylinder 202 through the feed pipe 206. After the material is added, use the sealing cover 207 to buckle and seal the feed pipe 206. At the same time, introduce gas into the multi-group flow pipes 209 through the air inlet pipe 208 and spray it out. The gas sprayed out by the multi-group flow pipes 209 evenly blows the cement particles at the upper end of the screen 210, making the particles in a fluidized state under the action of the air flow and moving with the air flow, avoiding the situation that some particles cannot pass through the screen 210 due to uneven air flow. Secondly, start the drive motor 304, combine the connecting rod 303 to connect the multi-group springs 301 to drive the screening cylinder 202 to assist in vibrating and screening, so that the screen 210 performs efficient screening under the action of vibration, assisting the fine particles to fully move and distribute in the screening cylinder 202, ensuring the full screening of the fine particles, reducing screening omissions, and making the screened particles fall into the storage cavity through the screen 210 for storage. The fine powder with a particle size smaller than the aperture of the screen 210 falls into the inside of the storage cavity through the screen 210, while the powder with a particle size larger than the area remains at the upper end of the screen 210. According to the mass ratio of the cement remaining at the upper end of the screen 210 and in the storage cavity, the fineness information of the cement can be obtained.

[0026] When the screening cylinder 202 is screening, the screen 210 inside the screening cylinder 202 can select different aperture sizes according to needs to accurately control the screening size of the cement particles and meet different fineness requirements. At the same time, the screening cylinder 202 is sealed for screening, which can ensure that the internal air flow evenly passes through the screen 210. Secondly, use the limit bolt 205 to fix the thread after the cover plate 203 is buckled, ensuring that the cover plate 203 maintains the correct position after being buckled, effectively preventing loosening caused by vibration or temperature changes during use, and ensuring the long-term stable operation of the equipment. After the screening and analysis, start the suction module 404 to drive the air outlet pipe 403 to transfer the screened particles into the collection cylinder 401 for storage, ensuring that the screened particles are accurately transferred to the collection cylinder 401, avoiding particle omission and cross-contamination, and facilitating subsequent analysis and management of the particles.

[0027] Through the above steps, gas is introduced into multiple groups of flow tubes 209 through the intake pipe 208 and ejected. The gas ejected from the multiple groups of flow tubes 209 evenly blows the cement particles at the upper end of the screen 210, causing the particles to be in a fluidized state under the action of the air flow and move along with the air flow, avoiding the situation that some particles cannot pass through the screen 210 due to uneven air flow. The driving motor 304 is used in combination with the connecting rod 303 to connect multiple groups of springs 301 to drive the screening cylinder 202 to assist in vibrating and screening, so that the screen 210 performs efficient screening under the action of vibration, assisting the fine particles to move and distribute fully in the screening cylinder 202, ensuring the full screening of the fine particles, reducing screening omissions. At the same time, the screen 210 inside the screening cylinder 202 can select different pore sizes according to needs to precisely control the screening size of the cement particles, meeting different fineness requirements. At the same time, the screening cylinder 202 is sealed for screening to ensure that the internal air flow evenly passes through the screen 210, avoiding uneven screening of particles caused by uneven air flow. By using the limit bolt 205 to fix the threads after the cover plate 203 is buckled, it is ensured that the cover plate 203 maintains the correct position after being buckled, effectively preventing loosening caused by vibration or temperature changes during use, ensuring the long-term stable operation of the equipment. The suction module 404 is used to drive the outlet pipe 403 to transfer the screened particles into the collection cylinder 401 for storage, ensuring that the screened particles are accurately transferred to the collection cylinder 401, avoiding particle omission and cross-contamination, and facilitating subsequent analysis and management of the particles.

[0028] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A cement fineness sieve analyzer, comprising a housing (1); characterized in that: It also includes a screening component (2), a driving component (3) and a collection component (4); a screening component (2) for screening cement particles to analyze the fineness of cement is installed at the upper end of the housing (1), a driving component (3) for providing a vibration force to effectively screen the cement particles is installed inside the housing (1), and a collection component (4) for collecting and storing the fine particles passing through the sieve plate during the screening process is installed outside the screening component (2).

2. The cement fineness sieve analyzer according to claim 1, characterized in that: The screening component (2) includes a support plate (201), a screening cylinder (202), a cover plate (203), support columns (204), limit bolts (205), a feed pipe (206), a sealing cover (207), an air inlet pipe (208), a flow pipe (209) and a sieve mesh (210). The upper end of the support plate (201) is provided with a screening cylinder (202), the upper end of the screening cylinder (202) is provided with a cover plate (203), the cover plate (203) is buckled and sealed with the screening cylinder (202), and a plurality of groups of flow pipes (209) are arranged around the inside of the cover plate (203), and one end of the flow pipe (209) is provided with an air inlet pipe (208) at the upper end of the cover plate (203).

3. The fineness sieve analyzer according to claim 2, characterized in that: The upper end of the cover plate (203) is provided with a feed pipe (206), the feed pipe (206) passes through the cover plate (203) and extends to the inside, the upper end of the feed pipe (206) is provided with a sealing cover (207), a sieve mesh (210) is arranged inside the screening cylinder (202), and a storage cavity is arranged below the sieve mesh (210) inside the screening cylinder (202).

4. The fineness sieve analyzer according to claim 3, wherein: Support columns (204) are symmetrically arranged at the upper end of the support plate (201), limit bolts (205) are arranged on the outer wall of the cover plate (203), and the support plate (201) is fixedly connected to the cover plate (203) through the support columns (204).

5. The fineness sieve analyzer according to claim 3, wherein: The driving component (3) includes a spring (301), a docking plate (302), a connecting rod (303), a driving motor (304) and a positioning block (305). A total spring (301) is arranged at the lower end of the support plate (201), a damper is arranged inside the spring (301), one end of the spring (301) is provided with a docking plate (302), and the spring (301) is fixedly connected to the housing (1) through the docking plate (302). A driving motor (304) is arranged inside the housing (1), one end of the driving motor (304) is provided with a connecting rod (303), a positioning block (305) is arranged at the lower end of the support plate (201), and the connecting rod (303) passes through the housing (1) and is movably connected to the positioning block (305).

6. The fineness sieve analyzer according to claim 4, wherein: The collection component (4) includes a collection cylinder (401), a closing cover (402), an air outlet pipe (403), a suction module (404), a discharge pipe (405) and a support rod (406). An air outlet pipe (403) is arranged between the collection cylinder (401) and the screening cylinder (202), a suction module (404) is arranged at the lower end of the air outlet pipe (403), and the air outlet pipe (403) passes through the collection cylinder (401) and extends to the inside.

7. The fineness sieve analyzer according to claim 6, characterized in that: The upper end of the collection cylinder (401) is provided with a closed cover (402), the lower end of the collection cylinder (401) is provided with a support rod (406), the collection cylinder (401) is fixedly connected to the housing (1) through the support rod (406), and a discharge pipe (405) is provided on the outer wall of the collection cylinder (401).

Images