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CN-122014629-A - Slurry pump with high efficiency and large caliber feeding

CN122014629ACN 122014629 ACN122014629 ACN 122014629ACN-122014629-A

Abstract

The invention discloses a high-efficiency large-caliber feeding slurry pump, which relates to the technical field of slurry pumps and comprises a pump shell, wherein a volute fixedly connected through bolts is arranged in the pump shell, an impeller is arranged in the volute, a feeding pipeline and a discharging pipeline which are communicated with the volute are arranged on the pump shell, and a pump shaft coaxially fixedly connected with the impeller is arranged at one end of the pump shell; through the matching of the staggered blocks, the springs and the water inlet holes, the water inlet holes guide liquid into the telescopic grooves, the staggered blocks are abutted against the liquid pressure to tightly joint the two staggered blocks, the springs can ensure that the staggered blocks can not shake greatly even under vibration conditions, the joint firmness of the front volute and the rear volute is enhanced, the shock resistance is improved, and further the phenomenon that the spiral case loosens due to equipment vibration can be avoided.

Inventors

  • FAN WENJING
  • WANG XIDAO

Assignees

  • 上利石集团(石家庄)泵业科技有限公司

Dates

Publication Date
20260512
Application Date
20260415

Claims (7)

  1. 1. The slurry pump with the high efficiency and large caliber feeding comprises a pump shell (1), wherein a volute is fixedly connected in the pump shell (1) through a bolt, an impeller (6) is installed in the volute, a feeding pipeline (4) and a discharging pipeline (5) which are communicated with the volute are arranged on the pump shell (1), and a pump shaft (7) which is coaxially fixedly connected with the impeller (6) is arranged at one end of the pump shell (1), and the slurry pump is characterized in that the volute is divided into a front volute (2) and a rear volute (3), a sealing assembly is arranged between opposite surfaces of the front volute (2) and the rear volute (3), a flaring pipe (21) is connected with one end flange of the feeding pipeline (4) far away from the pump shell (1), and a flow dividing assembly is arranged in the flaring pipe (21).
  2. 2. The slurry pump with high efficiency and large caliber feeding according to claim 1 is characterized in that a mounting sleeve (8) is sleeved on the pump shaft (7), the mounting sleeve (8) is fixedly connected with a support (9) through bolts, and one end of the support (9) is fixedly connected with one end face of the pump shell (1) through bolts.
  3. 3. The slurry pump with high efficiency and large caliber feeding according to claim 1, wherein the flow dividing assembly comprises an inner sleeve (10) sleeved on the inner wall of a flaring pipe (21), a plurality of flow dividing sheets (11) are fixedly connected to the inner wall of the inner sleeve (10) along the axial side at equal intervals, the flow dividing sheets (11) are spiral, a circle of annularly distributed flow dividing pipes (12) are fixedly connected to the peripheral side of the outer wall of the inner sleeve (10), and the flaring pipe (21) gradually expands outwards towards one end far away from the feeding pipeline (4).
  4. 4. The slurry pump with high efficiency and large caliber feeding according to claim 3, wherein the shunt tube (12) is in a honeycomb shape in radial section, one end of the shunt tube (12) is fixedly connected with an outward expansion flange plate (13), and the outward expansion flange plate (13) is in flange connection with one end of the flaring tube (21).
  5. 5. The slurry pump with high efficiency and large caliber feeding according to claim 1, wherein the sealing assembly comprises an embedded groove (14) arranged on the opposite surface of the front volute (2) and the rear volute (3), an O-shaped sealing strip (15) is fixedly connected in the embedded groove (14), a lug (20) corresponding to the embedded groove (14) is fixedly connected on the opposite surface of the rear volute (3) and the front volute (2), two staggered blocks (16) are symmetrically arranged on the lower ends of the lug (20) and the O-shaped sealing strip (15) on the opposite surface of the front volute (2) and the rear volute (3), and the two staggered blocks (16) are mutually staggered and clamped.
  6. 6. The slurry pump with high efficiency and large caliber feeding according to claim 5, wherein the two staggered blocks (16) are triangular blocks arranged in a mirror image mode, telescopic grooves (17) for telescopic the staggered blocks (16) are formed in the front volute (2) and the rear volute (3), springs (18) are arranged in the telescopic grooves (17), and one ends of the springs (18) are fixedly connected with the staggered blocks (16).
  7. 7. The slurry pump with high efficiency and large caliber feeding according to claim 5, wherein the inner walls of the front volute (2) and the rear volute (3) are respectively provided with a water inlet hole (19) which is communicated with the inner wall of one end of the telescopic groove (17) far away from the staggered block (16).

Description

Slurry pump with high efficiency and large caliber feeding Technical Field The invention relates to the technical field of slurry pumps, in particular to a slurry pump with high efficiency and large caliber feeding. Background The slurry pump is key equipment for conveying slurry containing solid particles, and is widely applied to industries such as mines, metallurgy, coal, chemical industry and the like; The existing slurry pump volute is mainly divided into a split type volute and an integrated type volute, wherein the split type volute is formed by respectively installing two halves on a front pump shell and a rear pump shell, the two volutes are attached to form a complete volute structure through fastening the front pump shell and the rear pump shell, but the installation fastening mode is not in place through fastening the front pump shell and the rear pump shell, or vibration is generated in the running process of equipment to cause loosening of bolts, so that leakage of the volute is very easy to cause, not only pollution to the working environment, but also pressure reduction of a pump body is caused, and conveying efficiency is affected. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides a slurry pump with high efficiency and large caliber feeding. In order to achieve the purpose, the slag slurry pump with high efficiency and large caliber feeding comprises a pump shell, wherein a volute fixedly connected through a bolt is arranged in the pump shell, an impeller is arranged in the volute, a feeding pipeline and a discharging pipeline which are communicated with the volute are arranged on the pump shell, a pump shaft which is coaxially fixedly connected with the impeller is arranged at one end of the pump shell, the volute is divided into a front volute and a rear volute, a sealing assembly is arranged between opposite surfaces of the front volute and the rear volute, a flaring pipe is connected with one end of the feeding pipeline far away from the pump shell through a flange, and a flow dividing assembly is arranged in the flaring pipe. Preferably, the pump shaft is sleeved with a mounting sleeve, the mounting sleeve is fixedly connected with a bracket through bolts, and one end of the bracket is fixedly connected with one end face of the pump shell through bolts. Preferably, the flow distribution assembly comprises an inner sleeve sleeved at the inner wall of the flaring pipe, a plurality of flow distribution sheets are fixedly connected to the inner wall of the inner sleeve along the axial side at equal intervals, the flow distribution sheets are spiral, a circle of annularly distributed flow distribution pipes are fixedly connected to the peripheral side of the outer wall of the inner sleeve, and the flaring pipe is gradually outwards expanded towards one end far away from the feeding pipeline. Preferably, the radial section of the shunt tube is honeycomb, one end of the shunt tube is fixedly connected with an outward expansion flange plate, and the outward expansion flange plate is in flange connection with one end of the flaring tube. Preferably, the sealing component comprises an embedded groove formed in the opposite surface of the front volute and the rear volute, an O-shaped sealing strip is fixedly connected in the embedded groove, a lug corresponding to the embedded groove is fixedly connected on the opposite surface of the rear volute and the front volute, two staggered blocks are symmetrically arranged on the opposite surfaces of the front volute and the rear volute and at the lower ends of the lug and the O-shaped sealing strip, and the two staggered blocks are mutually staggered and clamped. Preferably, the two staggered blocks are triangular blocks arranged in a mirror image mode, telescopic grooves used for telescopic the staggered blocks are formed in the front volute and the rear volute, springs are arranged in the telescopic grooves, and one ends of the springs are fixedly connected with the staggered blocks. Preferably, the inner walls of the front volute and the rear volute are respectively provided with a water inlet hole which is communicated with the inner wall of one end of the telescopic groove far away from the staggered block. Compared with the prior art, the invention has the beneficial effects that the fit sealing performance of the front volute and the rear volute is enhanced by the fit of the embedded groove, the O-shaped sealing strip and the convex block, the sealing reliability is improved, and the functions of preventing the leakage of the volute and guaranteeing the pressure stability of the pump body can be realized; through the cooperation of the staggered blocks, the springs and the water inlet holes, the water inlet holes guide liquid into the telescopic slots, the two staggered blocks are tightly attached by utilizing liquid pressure to prop against the staggered blocks, the springs can ensure that the stagger