CN210528801U

CN210528801U - Wet ash kiln entering system for washing fly ash

Info

Publication number: CN210528801U
Application number: CN201921462018.8U
Authority: CN
Inventors: 李忠锋; 李扬杰; 安君; 孔令然; 程章; 赵小楠
Original assignee: Bj Zkgr Technology Co ltd
Current assignee: Bj Zkgr Technology Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-05-15
Anticipated expiration: 2029-09-04

Abstract

The utility model provides a system for wet ash of washing flying dust goes into kiln relates to a system that is used for wet ash to handle. The wet ash kiln entering system of the washing fly ash can perform differential treatment on materials with different water contents and improve the pulping efficiency. The utility model relates to a wet ash kiln entering system of washing flying ash, which comprises a raw material storage bin, a material crushing unit, a mixed pulping unit, a metering device and a slurry conveying unit, wherein two outlets of the raw material storage bin are respectively connected with an inlet of the material crushing unit and an inlet of the mixed pulping unit; the outlet of the material crushing unit is connected with the inlet of the mixed pulping unit; the outlet of the mixing pulping unit is connected with the inlet of the slurry conveying unit; the outlet of the slurry conveying unit is connected with the inlet of the cement kiln.

Description

Wet ash kiln entering system for washing fly ash

Technical Field

The utility model relates to a flying dust handles technical field, especially relates to a kiln system is gone into to wet ash of washing flying dust.

Background

The method for co-processing the waste incineration fly ash by using the cement kiln is to wash the fly ash with water, and send the washed fly ash to the cement kiln for co-processing. The existing cooperative disposal mode is to dry fly ash by utilizing waste heat of a cement plant and then convey the fly ash into a kiln by pneumatic power, and when a fly ash pretreatment center is built, no waste heat can be utilized or wet ash needs to be directly utilized and enters the kiln, a better solution is not provided at present. After the wet ash after washing is directly fed into the kiln, the pulping efficiency in the kiln is reduced due to the uncertainty of the water content of the material.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can carry out difference to the material of different moisture contents and handle, improve the wet ash income kiln system of the washing flying dust of slurrying efficiency.

The utility model provides a scheme, a wet ash kiln entering system of washing flying ash, which comprises a raw material storage bin, a material crushing unit, a mixed pulping unit, a metering device and a slurry conveying unit, wherein two outlets of the raw material storage bin are respectively connected with an inlet of the material crushing unit and an inlet of the mixed pulping unit; the outlet of the material crushing unit is connected with the inlet of the mixed pulping unit; the outlet of the mixing pulping unit is connected with the inlet of the slurry conveying unit; the outlet of the slurry conveying unit is connected with the inlet of the cement kiln.

The utility model relates to a kiln system is gone into to washing flying dust's wet ash, wherein the bottom in raw materials warehouse is provided with raw materials conveying equipment, and raw materials conveying equipment has the classification function for carry out the hierarchical processing to the raw materials, raw materials conveying equipment has two discharge gates, and two exports in raw materials warehouse are connected respectively to two discharge gates.

The utility model relates to a kiln system is gone into to wet ash of washing flying dust, wherein set up the densimeter in the mixed slurrying unit for detect thick liquids density.

The utility model relates to a kiln system is gone into to wet ash of washing flying ash, wherein mix slurrying unit still has the water inlet, and the clear water jar is connected to the water inlet.

The utility model relates to a kiln system is gone into to wet ash of washing flying ash, wherein be provided with metering device in the thick liquids conveying unit for the quality of the thick liquids of control income in-kiln processing.

The utility model relates to a kiln system is gone into to wet ash of washing flying ash and prior art difference lies in, the utility model relates to a kiln system is gone into to wet ash of washing flying ash has following technological effect:

1. through the utility model discloses a broken and slurrying unit of anterior segment can carry out the difference to the material of different moisture contents and handle to can improve slurrying efficiency.

2. The fly ash feeding amount can be accurately measured through the combined action of the density detection device and the measuring unit in the whole system; meanwhile, the pulping concentration can be adjusted at any time according to the kiln condition and the condition of the conveying system, and the disposal efficiency is further improved.

3. Clean water in the pulping unit is conveyed to the pulping equipment through a water pump, and the addition amount of the clean water can be controlled through a density measuring device.

The wet ash kiln feeding system of the present invention will be further explained with reference to the drawings.

Drawings

FIG. 1 is a process flow diagram of a wet ash kiln entry system for washing fly ash in accordance with the present invention;

Detailed Description

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in figure 1, the wet ash kiln-entering system of the water washing fly ash of the utility model comprises a raw material storage bin, a material crushing unit, a mixing pulping unit, a metering device and a slurry conveying unit.

Wet ash is placed in the raw material storage bin, and the wet ash firstly enters the raw material storage bin for standby after being conveyed. The outlet of the raw material storage bin is respectively connected with the inlet of the material crushing unit and the inlet of the mixed pulping unit, and the outlet of the material crushing unit is connected with the inlet of the mixed pulping unit. The bottom of the raw material storage bin is provided with raw material conveying equipment which has a grading function, the grading function is used for grading coarse and fine grain raw materials in the raw materials, and the graded fine grain materials meet the requirement of granularity of the materials entering the cement kiln. The raw material conveying equipment is provided with two discharge ports, and the two discharge ports are respectively connected with two outlets of the raw material storage bin.

The material crushing unit is used for crushing the blocky or low-water-content raw ash material. When the raw ash contains a large number of blocky objects or the water content of the raw ash is lower than 30 percent and the flowability is poor, the raw ash is conveyed to a crushing unit through a conveying device to be crushed; when the raw ash is in a slurry state and has a better flow state, the raw ash directly enters the mixed pulping unit for further treatment.

The mixing and pulping unit is also provided with a water inlet which is connected with a clean water tank, and after the materials enter the mixing and pulping unit, clean water is added into the materials to change the water content of the materials, so that the water content reaches 45% -55%, the material flowability is improved, and the materials can be conveniently conveyed by a conveying system. And a density meter is also arranged in the mixing pulping unit and used for detecting the mass concentration of the pulp, and when the mass concentration of the pulp is 45-55%, the subsequent conveying is facilitated.

The outlet of the mixing and pulping unit is connected with the inlet of the pulp conveying unit. The outlet of the slurry conveying unit is connected with the inlet of the cement kiln. And the slurry prepared by the mixing and pulping unit is conveyed to a cement kiln through a slurry conveying unit to be calcined.

And a metering device is arranged in the slurry conveying unit, and the metering device is used for metering and controlling the materials, so that the treatment capacity can be accurately grasped under the condition of stable kiln conditions, and the treatment capacity can be adjusted in real time according to the kiln conditions.

The utility model relates to a kiln is gone into to wet ash of washing flying ash includes following step in the use:

s01, the wet ash is conveyed to enter a raw material storage bin for standby;

s02, when the raw ash contains a large number of blocky objects or the raw ash has low water content and poor flowability, conveying the materials to a crushing unit through a conveying device for crushing; when the raw ash is in a slurry state and has a better flow state, the raw ash directly enters the mixed pulping unit for further treatment;

s03, adding clear water into the materials after the materials enter the mixing and pulping unit, changing the water content of the materials, improving the flowability of the materials, facilitating the material conveying of a conveying system, detecting the density of the slurry through a density measuring device, and adjusting the addition amount of the clear water through the capacity of the conveying unit and the running condition of the cement kiln so as to adjust the density of the slurry;

s04, conveying the slurry prepared by the mixing and pulping unit to a cement kiln through a conveying unit for calcination treatment;

and S05, metering and controlling the materials by the metering unit in the material conveying process, ensuring that the treatment capacity is accurately grasped under the condition of stable kiln conditions, and adjusting in real time according to the kiln conditions.

The utility model relates to a kiln system is gone into to wet ash of washing flying dust has following beneficial effect:

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The wet ash kiln feeding system of the water washing fly ash is characterized in that: the device comprises a raw material storage bin, a material crushing unit, a mixing and pulping unit, a metering device and a slurry conveying unit, wherein two outlets of the raw material storage bin are respectively connected with an inlet of the material crushing unit and an inlet of the mixing and pulping unit; the outlet of the material crushing unit is connected with the inlet of the mixed pulping unit; the outlet of the mixing pulping unit is connected with the inlet of the slurry conveying unit; the outlet of the slurry conveying unit is connected with the inlet of the cement kiln.

2. The wet ash entry kiln system for water-washed fly ash of claim 1, wherein: the bottom in raw materials warehouse is provided with raw materials conveying equipment, and raw materials conveying equipment has the hierarchical function for carry out the hierarchical processing to the raw materials, raw materials conveying equipment has two discharge gates, and two exports in raw materials warehouse are connected respectively to two discharge gates.

3. The wet ash entry kiln system for water-washed fly ash of claim 1, wherein: a density instrument is arranged in the mixing pulping unit and used for detecting the density of the pulp.

4. The wet ash entry kiln system of water-washed fly ash of claim 1 or 3, wherein: the mixed pulping unit is also provided with a water inlet which is connected with a clean water tank.

5. The wet ash entry kiln system for water-washed fly ash of claim 1, wherein: and a metering device is arranged in the slurry conveying unit and is used for controlling the quality of the slurry entering the kiln for treatment.