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CN-116747944-B - Sludge blending burning and crushing method and equipment

CN116747944BCN 116747944 BCN116747944 BCN 116747944BCN-116747944-B

Abstract

The invention relates to the technical field of sludge treatment, in particular to a sludge co-firing crushing method and equipment, wherein the sludge co-firing crushing method comprises the following steps that a crushing device is arranged below a hopper of a conveying system, a first belt conveyor is arranged at a discharge hole at the bottom of the crushing device, and a second belt conveyor is arranged at a discharge pipe at the front side of the lower part of the crushing device; the method comprises the steps of loading sludge into a hopper of a conveying system through a digging machine and a loading machine, starting a crushing device, enabling the sludge to fall into the crushing device for crushing, enabling the sludge which meets the standard and is crushed by the crushing device to fall onto a first belt conveyor from a discharge hole at the bottom of the crushing device, enabling the sludge which does not meet the standard and is crushed by the crushing device to fall onto a second belt conveyor from a discharge pipe at the front side of the lower part of the crushing device, and carrying out secondary recovery crushing.

Inventors

  • ZHANG JINFEI
  • HUANG JIN
  • SHU HAITAO
  • HUANG YUNBAO
  • SUN RIDONG
  • WANG JIAN

Assignees

  • 华能淮阴第二发电有限公司

Dates

Publication Date
20260508
Application Date
20230531

Claims (7)

  1. 1. A sludge blending and burning crushing device is characterized by comprising: The device comprises a mounting unit (100) and a control unit, wherein the mounting unit comprises a mounting cylinder (101), a crushing box (102) arranged at the top of the mounting cylinder (101), a discharge hopper (103) arranged at the bottom of the mounting cylinder (101), and a driving assembly (104) arranged outside the mounting cylinder (101) and the crushing box (102); A pulverizing and dispersing unit (200) including a pulverizing unit (201) disposed in the pulverizing box (102), and a swirl fan blade (202) disposed below the pulverizing unit (201), and The screening unit (300) comprises a guide hopper (301) arranged below the cyclone blades (202), a screening cylinder (302) arranged at the bottom of the guide hopper (301), a screening component (303) arranged in the screening cylinder (302), and oscillating components (304) arranged at two ends of the screening cylinder (302); The screening assembly (303) comprises a screen (303 a) arranged on two sides of an inner rotating shaft (104 c) of the screening cylinder (302), arc plates (303 b) arranged on two ends of the screen (303 a) and attached to the inner wall of the screening cylinder (302), a discharge hole (303 c) arranged at the bottom of the screening cylinder (302), and a discharge pipe (303 d) arranged on one side of the lower part of the screening cylinder (302), a material guiding sealing plate (301 a) is arranged on one side of the material guiding hopper (301) close to the discharge pipe (303 d), when a gap exists between the arc plates (303 b) and the material guiding sealing plate (301 a), sludge slides onto the screen (303 a) along the material guiding sealing plate (301 a), and when the arc plates (303 b) are contacted with the material guiding sealing plate (301 a), the sludge slides down along the arc plates (303 b) until the sludge falls onto another arc plates (303 b) and rotates along with the screen (303 a) to screen. When the discharge hole (303 c) is not closed, the crushed sludge meeting the standard can leak out of the discharge hole (303 c) through the screen (303 a); When the discharge hole (303 c) is closed and one arc-shaped plate (303 b) rotates to the position of the screen (303 a) opposite to the discharge pipe (303 d), the crushed sludge which does not meet the standard can be discharged from the discharge pipe (303 d) for recovery.
  2. 2. The sludge co-firing pulverizing apparatus as claimed in claim 1, wherein the pulverizing assembly (201) comprises a first pulverizing roller (201 a) disposed below a middle portion of the pulverizing box (102), a second pulverizing roller (201 b) disposed above both sides of the first pulverizing roller (201 a), and reciprocating members (201 c) disposed at both ends of the first pulverizing roller (201 a).
  3. 3. The sludge co-firing crushing equipment according to claim 2, wherein clamping blocks (201 a-1) are symmetrically arranged on two sides of the middle of the roller shaft of the first crushing roller (201 a), clamping grooves (201 a-2) which are used for being matched with the clamping blocks (201 a-1) are symmetrically arranged on two sides of the inner part of the roller body of the first crushing roller (201 a), and reciprocating threads are arranged on two ends of the roller shaft of the first crushing roller (201 a); The reciprocating member (201 c) comprises moving blocks (201 c-1) arranged at two ends of the first crushing roller (201 a), a first protection pipe (201 c-2) arranged outside the moving blocks (201 c-1) and rotationally connected with the end part of the first crushing roller (201 a), a telescopic protection pipe (201 c-3) arranged at the other end of the first protection pipe (201 c-2), and a second protection pipe (201 c-4) arranged at the other end of the telescopic protection pipe (201 c-3) and rotationally connected with one end of the crushing box (102).
  4. 4. The sludge co-firing crushing apparatus according to claim 3, wherein the driving assembly (104) comprises gears (104 a) respectively arranged on the roller shafts of the first crushing roller (201 a) and the two second crushing rollers (201 b), a motor (104 b) arranged outside the mounting cylinder (101), and a rotating shaft (104 c) arranged below the motor (104 b), an output shaft of the motor (104 b) is connected with the roller shaft of the first crushing roller (201 a) through a first belt (104 d), and an output shaft of the motor (104 b) is connected with the rotating shaft (104 c) through a second belt (104 e).
  5. 5. The sludge co-firing crushing apparatus according to claim 4, wherein the oscillating assembly (304) comprises a sliding block (304 a) respectively arranged on the outer side rotating shafts (104 c) at the two ends of the sieving cylinder (302), a plurality of L-shaped rods (304 b) arranged on the periphery of the sliding block (304 a), and oscillating balls (304 c) arranged at the ends of the L-shaped rods (304 b), and reciprocating threads are arranged on the shaft bodies of the outer side rotating shafts (104 c) at the two ends of the sieving cylinder (302).
  6. 6. The sludge co-firing crushing equipment according to any one of claims 1 to 5, wherein a transmission component (203) is further arranged below the cyclone fan blade (202), and the transmission component (203) is connected with the driving component (104).
  7. 7. A method for grinding sludge by blending, which is characterized by comprising the following steps of: the crushing equipment is arranged below a hopper of the conveying system, a first belt conveyor is arranged at the bottom of the crushing equipment, and a second belt conveyor is arranged at the front side of the lower part of the crushing equipment; Loading the sludge into a hopper of a conveying system through a digging machine and a loading machine, starting a crushing device, and enabling the sludge to fall into the crushing device for crushing; the sludge meeting the standard after being crushed by the crushing equipment falls onto a first belt conveyor from the bottom of the crushing equipment and enters a next step of blending and burning; the sludge which is crushed by the crushing equipment and does not meet the standard falls onto a second belt conveyor from the front side of the lower part of the crushing equipment for secondary recovery and crushing; and after the crushing is finished, the crushing equipment is closed.

Description

Sludge blending burning and crushing method and equipment Technical Field The invention relates to the technical field of sludge treatment, in particular to a method and equipment for mixing, burning and crushing sludge. Background At present, in order to reduce the sludge storage amount of a coal yard, a sludge blending combustion method is adopted, so that the blending combustion amount of wet sludge of the coal yard is effectively increased, the transferred wet sludge is timely blended-burned, and in order to facilitate the blending combustion of the sludge, the sludge is crushed firstly At present, due to the characteristics of high water content, high viscosity and the like of sludge, the sludge can enter a hearth for combustion after being dried and crushed, and further sludge blending combustion is carried out. The sludge in the related art enters the crushing device after being dried and is discharged from the discharge port, and when the common crushing method and equipment are used for crushing the sludge, the common crushing method and equipment are used for crushing the sludge by adopting modes such as a pair roller, a spiral, a pair tooth and the like, the mode is single, the effect is often poor, partial sludge can be crushed incompletely, and the partial sludge directly enters a hearth to easily cause insufficient combustion and influence the production efficiency. Disclosure of Invention This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application. The present invention has been made in view of the problems that the existing sludge co-firing pulverization may have incomplete pulverization, resulting in insufficient combustion and affecting the production efficiency. Therefore, the invention aims to provide a sludge blending and burning crushing method. In order to solve the technical problems, the invention provides a sludge blending and burning crushing method which comprises the following steps of, The crushing device is arranged below a hopper of the conveying system, a first belt conveyor is arranged at the bottom of the crushing device, and a second belt conveyor is arranged at the front side of the lower part of the crushing device; loading the sludge into a hopper of a conveying system through a digging machine and a loading machine, starting a crushing device, and enabling the sludge to fall into the crushing device to be crushed; the sludge meeting the standard after being crushed by the crushing device falls onto a first belt conveyor from the bottom of the crushing device and enters a next step of blending and burning; The sludge which is crushed by the crushing device and does not meet the standard falls onto a second belt conveyor from the front side of the lower part of the crushing device, and is recycled and crushed for the second time; And after the crushing is finished, closing the crushing device. As a preferable scheme of the sludge co-firing crushing method, the upper part of the crushing device is provided with a crushing tool for crushing and dispersing the sludge. As a preferable scheme of the sludge co-firing crushing method, the lower part of the crushing device is provided with a screening tool for screening and separating crushed sludge. In order to solve the technical problems, the invention also provides a technical scheme that the sludge co-firing crushing equipment comprises any one of the crushing devices, which comprises, The device comprises a mounting unit, a grinding unit and a grinding unit, wherein the mounting unit comprises a mounting cylinder, a grinding box arranged at the top of the mounting cylinder, a discharge hopper arranged at the bottom of the mounting cylinder, and a driving assembly arranged outside the mounting cylinder and the grinding box; The crushing and dispersing unit comprises a crushing assembly arranged in the crushing box, a cyclone fan blade arranged below the crushing assembly, and The screening unit comprises a guide hopper arranged below the cyclone fan blade, a screening barrel arranged at the bottom of the guide hopper, a screening component arranged in the screening barrel, and vibration components arranged at two ends of the screening barrel. As a preferable scheme of the sludge co-firing crushing equipment, the crushing assembly comprises a first crushing roller arranged below the middle part of the crushing box, a second crushing roller arranged above two sides of the first crushing roller, and reciprocating moving parts arranged at two ends of the first crushing roller. The sludge co-firing crushing equipment is characterized in that clamping blocks are symmetrically arranged on two sides of the middle of a roller shaft of the first crushing