WO2020134534A1 - 一种砼搅拌站水泥罐除尘装置及方法 - Google Patents

一种砼搅拌站水泥罐除尘装置及方法 Download PDF

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Publication number
WO2020134534A1
WO2020134534A1 PCT/CN2019/114596 CN2019114596W WO2020134534A1 WO 2020134534 A1 WO2020134534 A1 WO 2020134534A1 CN 2019114596 W CN2019114596 W CN 2019114596W WO 2020134534 A1 WO2020134534 A1 WO 2020134534A1
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Prior art keywords
filter
filter box
cement tank
chamber
air
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PCT/CN2019/114596
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English (en)
French (fr)
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康靖坤
孙磊
公海红
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中国电建集团山东电力建设第一工程有限公司
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Publication of WO2020134534A1 publication Critical patent/WO2020134534A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00

Definitions

  • the invention belongs to the technical field of construction, and relates to a dust removing device and method for a cement tank of a concrete mixing station.
  • the cement tank in the concrete mixing station is generally used in the storage of bulk cement in the concrete mixing station.
  • the bulk cement silo is a closed tank for storing bulk materials.
  • the material transmission of the cement tank is based on high-pressure air as the power source. During the transportation process, the pressure in the tank is greater than atmospheric pressure. In the traditional structure, the compressed air in the cement tank is released to the outside through the dust collector installed on the top of the cement tank.
  • roof fall accidents In the process of conveying materials to cement tanks, roof fall accidents often occur. There are two main reasons for the roof fall accident: 1. When the dust in the cement tank blocks the filter element in the silo roof dust collector during the discharge of high-pressure air, the high-pressure air in the cement tank cannot be discharged, causing the pressure in the cement tank to gradually increase , Which produces a bump. 2. If the cement tank is filled with materials, even if the worker hears the cement tank full alarm and immediately stops feeding, there will be a roof fall, resulting in waste of materials and environmental damage, and the roof of the tank will be filled individually. The dust collector flies overhead, and there is a hidden danger of falling objects and hurting people when falling.
  • the existing solution is to install a safety relief valve on the top of the cement tank.
  • a safety relief valve When the filter element in the warehouse roof dust collector is blocked by dust, open the safety relief valve to reduce the pressure in the cement tank, thereby avoiding Roof fall accident.
  • one aspect of the present invention is to provide a cement tank dust removal device for a concrete mixing station, which can solve the roof falling accident caused by the cement tank being filled with materials.
  • a cement tank dedusting device for a concrete mixing station is composed of a cement tank, a filter box and a pool, the cement tank, the filter box and the pool are all set on the ground, and the gas outlet of the cement tank Opened on the top of the cement tank, the filter box is equipped with an air filter core, the gas inlet of the filter box is provided in the middle or upper side of the filter box, a space is provided between the air filter core and the gas inlet of the filter box, and the gas outlet of the filter box is provided In the middle or upper part of the other side of the filter box, the gas outlet of the cement tank is connected to the gas inlet of the filter box through the filter inlet pipe, and the gas outlet of the filter box is connected to the pool through the filter outlet pipe.
  • Another aspect of the present invention is to provide a dust removal method for a cement tank of a concrete mixing station, and to provide the above dust removal device.
  • the gas in the cement tank enters the filter box for buffer and pressure reduction, and is preliminarily filtered through the filter core, and then enters the pool.
  • the water in the pool collects the dust in the gas filtered by the filter box and discharges it; when the material in the cement tank is full, the air in the cement tank transports part of the material to the filter box through the filter inlet pipe. It sinks to the bottom of the filter under the action, and the air is discharged through the filter core in sequence and the dust is captured by the water.
  • the device of the present invention is simple, easy to operate, convenient to use, and low in cost.
  • the present invention can ensure the dust removal effect of the cement tank through the double filtration of the filter box and the pool.
  • the present invention avoids material waste, is conducive to saving construction costs, and avoids damage to the environment.
  • Example 1 is a schematic structural diagram of a dust removal device of Example 1;
  • Example 2 is a schematic structural view of the filter box of Example 1;
  • Example 3 is a schematic structural view of the dust removal device of Example 2.
  • Example 4 is a schematic structural view of a filter box of Example 2.
  • a typical embodiment of the present application provides a dedusting device for a cement tank of a concrete mixing station, which is composed of a cement tank, a filter box and a pool.
  • the cement tank, the filter box and the pool are all set on the ground, and the gas outlet of the cement tank is opened
  • At the top of the cement tank there is an air filter element in the filter box.
  • the gas inlet of the filter box is located in the middle or upper part of the side of the filter box. There is a space between the air filter element and the gas inlet of the filter box.
  • the gas outlet of the filter box is located at In the middle or upper part of the other side of the filter box, the gas outlet of the cement tank is connected to the gas inlet of the filter box through the filter inlet pipe, and the gas outlet of the filter box is connected to the pool through the filter outlet pipe.
  • the filter box provided by the present disclosure not only has the function of preliminary filtration, but also has the functions of buffering, depressurizing, and collecting emerging materials.
  • the diameter of the filter inlet pipe is not less than 160 mm. It can prevent the diameter of the pipe from being too small so that the pressure of the material entering the filter box is too large, thereby preventing the material from being sprayed onto the air filter element.
  • the gas inlet of the filter box is higher than the gas outlet of the filter box. It can make full use of the air filter element in the filter box for filtration.
  • the gas outlet of the cement tank is higher than the gas inlet of the filter tank. Make the high-pressure air easier to squeeze the material into the filter box to prevent the pressure in the cement tank from being too high.
  • the space between the air filter element and the gas inlet of the filter box is inclined at the bottom. Facilitates the collection of materials entering the filter box.
  • a material outlet is provided in the lower part of the space between the air filter element and the gas inlet of the filter box, and a valve is provided at the material outlet. Facilitate the discharge of materials.
  • the filter box is divided into a collection chamber and a filtration chamber in sequence according to the gas flow direction. The collection chamber is not provided with an air filter element, and the filter chamber is provided with an air filter element.
  • the communication port is located in the upper part of the filter box. The space is the collection chamber.
  • the filter chamber is divided into a first filter chamber and a second filter chamber, and both the first filter chamber and the second filter chamber are provided with air filter elements, and the communication ports of the first filter chamber and the second filter chamber Located in the lower part of the filter box. Can make full use of the air filter.
  • the first filter chamber is located between the collection chamber and the second filter chamber.
  • the air filter element of the filter chamber is composed of several layers from top to bottom, and each layer of air filter element is The side walls of the filtering chamber are provided with holes, and the holes of each layer of air filter elements are arranged in a staggered manner. Prevent the material in the collection chamber from overflowing too much into the filtering chamber to block the air filter.
  • Another embodiment of the present disclosure provides a method for removing dust from a cement tank of a concrete mixing station, and provides the above dust removal device.
  • the gas in the cement tank enters the filter box for buffer and pressure reduction, and is preliminarily filtered through the filter core, and then enters the pool In the water in the pool, the dust in the gas filtered by the filter box is collected and discharged; when the material in the cement tank is full, the air in the cement tank transports part of the material to the filter box through the filter inlet pipe.
  • the force of gravity sinks to the bottom of the filter, and the air is discharged after being filtered through the filter core and collecting dust with water.
  • a dust removal device for a cement tank of a concrete mixing station is composed of a cement tank 1, a filter box 2 and a pool 3.
  • the cement tank 1, the filter box 2 and the pool 3 are all set on the ground.
  • the gas outlet 4 of the cement tank is opened at the top of the cement tank 1.
  • the filter box 2 is provided with an air filter element 5, the gas inlet 6 of the filter box 2 is provided on the upper side of the filter box 2, a space 7 is left between the air filter element 5 and the gas inlet 6 of the filter box, and the gas outlet 8 of the filter box It is provided in the middle of the other side of the filter box 2.
  • the gas outlet 4 of the cement tank is connected to the gas inlet 6 of the filter box through the filter inlet pipe 9, and the gas outlet 8 of the filter box is connected to the pool 3 through the filter outlet pipe 10.
  • the diameter of the filter inlet pipe 9 is 160 mm.
  • the gas inlet 6 of the filter box is higher than the gas outlet 8 of the filter box.
  • the gas outlet 4 of the cement tank is higher than the gas inlet 6 of the filter box.
  • the dust removal method is as follows: the gas in the cement tank enters the filter box and is buffered and decompressed, and is preliminarily filtered through the filter core, and then enters the pool, and the water in the pool captures and discharges the dust in the gas after the filter box is filtered; When the material in the cement tank is full, the air in the cement tank transports part of the material to the filter box through the filter inlet tube. The material sinks to the bottom of the filter under the action of gravity, and the air passes through the filter core and the water captures the dust in sequence. After emissions.
  • each large tank needs to use an iron pipe with a diameter of 160 mm for 20 meters, plus welding and iron box costs, a total of about 1,000 yuan is needed.
  • Each project site is generally equipped with two mixing stations, each mixing station has 3 to 4 large tanks. On average, a project site can save about 80,000 yuan. Has good economic benefits.
  • a dust removal device for a cement tank of a concrete mixing station is composed of a cement tank 1, a filter box 2 and a water tank 3.
  • the cement tank 1, the filter box 2 and the pool 3 are all set on the ground.
  • the gas outlet 4 of the cement tank is opened at the top of the cement tank 1.
  • the filter box 2 is provided with an air filter element 5, the gas inlet 6 of the filter box is provided at the upper part of the filter box 2, and the gas outlet 8 of the filter box is provided at the upper part of the filter box 2.
  • the gas outlet 4 of the cement tank is connected to the gas inlet 6 of the filter box through the filter inlet pipe 9, and the gas outlet 8 of the filter box is connected to the pool 3 through the filter outlet pipe 10.
  • the diameter of the filter inlet pipe 9 is 160 mm.
  • the gas outlet 4 of the cement tank is higher than the gas inlet 6 of the filter box.
  • the filter box 2 is divided into a collection chamber 11 and a filter chamber in order according to the flow direction of the gas.
  • the collection chamber 11 is not provided with an air filter element, and the filter chamber is provided with an air filter element.
  • the gas inlet 6 of the filter box is provided on the side wall of the collection chamber 11 and the collection chamber 11
  • the communication port with the filter chamber is located in the upper part of the filter box.
  • the bottom of the collection chamber 11 is inclined.
  • a material outlet 12 is provided at the bottom of the side wall of the collection chamber 11, and the material outlet 12 is provided with a valve 13.
  • the filter chamber is divided into a first filter chamber 14 and a second filter chamber 15. Both the first filter chamber 14 and the second filter chamber 15 are provided with air filters, and the communication ports of the first filter chamber 14 and the second filter chamber 15 are located in the lower part of the filter box 2.
  • the first filtration chamber 14 is located between the collection chamber 11 and the second filtration chamber 15.
  • the air filter element 5 of the first filtration chamber 14 has several layers from top to bottom, and each layer of the air filter element and the side wall of the first filtration chamber 14 are provided with holes, each layer The pores of the air filter are staggered.
  • the gas inlet 6 of the filter box is located on the side wall of the second filter chamber 15.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

一种砼搅拌站水泥罐除尘装置及方法，其装置由水泥罐（1）、过滤箱（2）和水池（3）组成，水泥罐（1）、过滤箱（2）和水池（3）均设置在地面上，水泥罐的气体出口（4）开设在水泥罐（1）顶部，过滤箱（2）内设有空气滤芯（5），过滤箱的气体进口（6）设置在过滤箱（2）一侧的中部或上部，空气滤芯（5）与过滤箱的气体进口（6）之间设有空间（7），过滤箱的气体出口（8）设置在过滤箱（2）另一侧的中部或上部，水泥罐的气体出口（4）通过过滤进口管（9）连接过滤箱的气体进口（6），过滤箱的气体出口（8）通过过滤出口管（10）与水池（3）连接。其能够解决由于水泥罐（1）被物料灌满导致的冒顶事故。

Description

一种砼搅拌站水泥罐除尘装置及方法 技术领域
本发明属于建筑技术领域，涉及一种砼搅拌站水泥罐除尘装置及方法。
 背景技术
砼搅拌站中的水泥罐一般用在混凝土搅拌站的散装水泥存储中，散装水泥仓是一种封闭式的储存散装物料的罐体。水泥罐的物料传输是以高压空气为动力源，在输送的过程中，罐内压力大于大气压。传统结构中，水泥罐内的压缩空气通过安装在水泥罐顶部的仓顶除尘器向外释放。
在向水泥罐中输送物料的过程中，往往有冒顶事故的发生。冒顶事故的主要原因有两点：1.当水泥罐内的粉尘随高压空气排放过程中堵塞仓顶除尘器中的滤芯时，水泥罐内高压空气无法排放，使得水泥罐内的压力逐渐升高，从而产生冒顶。2.若向水泥罐内打满物料时，即使工作人员听到水泥罐打满警报，立即停止进料，也会出现冒顶的情况，造成材料浪费和环境破坏，个别还会将灌顶的仓顶除尘器顶飞，掉落时还存在落物伤人的安全隐患。
 技术问题
对于原因1，现有的解决方案为在水泥罐顶部安装安全泄压阀，当仓顶除尘器中的滤芯被粉尘堵塞时，打开安全泄压阀，即可降低水泥罐内的压力，从而避免冒顶事故。
然而对于原因2，即使安装安全泄压阀，但是由于水泥罐已经被物料灌满，此时打开安全泄压阀会导致安全泄压阀的堵塞，从使安全泄压阀的泄压效果失效，同时水泥罐内的压力高于大气压，使得物料进入仓顶除尘器，堵塞气体进入除尘器的通道，从而造成冒顶事故，而该原因完全属于人为疏忽，无法避免，暂无该冒顶原因的解决方案。
 技术解决方案
为了解决现有技术的不足，本发明的一方面是提供一种砼搅拌站水泥罐除尘装置，该装置能够解决由于水泥罐被物料灌满导致的冒顶事故。
为了实现上述目的，本发明的技术方案为：一种砼搅拌站水泥罐除尘装置，由水泥罐、过滤箱和水池组成，水泥罐、过滤箱和水池均设置在地面上，水泥罐的气体出口开设在水泥罐顶部，过滤箱内设有空气滤芯，过滤箱的气体进口设置在过滤箱一侧的中部或上部，空气滤芯与过滤箱的气体进口之间设有空间，过滤箱的气体出口设置在过滤箱另一侧的中部或上部，水泥罐的气体出口通过过滤进口管连接过滤箱的气体进口，过滤箱的气体出口通过过滤出口管与水池连接。
将过滤箱设置在地面，并将气体进口和气体出口均设置在中部或上部，且空气滤芯与过滤箱的气体进口之间设有空间，当水泥罐被物料灌满时，物料沿着过滤进口管进入至过滤箱，并在重力的作用下由空气滤芯与过滤箱的气体进口之间的空间进入过滤箱的底部，从而防止物料堵塞进入过滤箱的通道，同时避免物料堵塞空气滤芯。然而该设置，在进行除尘过程中，气体与滤芯的接触面积有限，无法完全去除高压空气中的粉尘，因而再设置水池，将过滤箱过滤后的气体通入水池中，对气体中的微量粉尘进行捕集，从而达到除尘的目的，又能防止因打满水泥罐导致的冒顶事故。
本发明的另一方面是提供一种砼搅拌站水泥罐除尘方法，提供上述除尘装置，水泥罐内的气体进入过滤箱后进行缓冲减压，并通过过滤芯进行初步过滤，然后进入水池中，水池中的水将过滤箱过滤后气体中的粉尘进行捕集后排放；当水泥罐中的物料打满时，水泥罐内的空气将部分物料通过过滤进口管输送至过滤箱，物料在重力的作用下沉降至过滤器底部，空气经过依次经过滤芯过滤、水捕集粉尘后排放。
 有益效果
1.本发明的装置简单、操作简便、使用方便，成本低。
2.本发明经过过滤箱和水池双重过滤能够保证对水泥罐的除尘效果。
3.本发明避免了材料浪费，有利于节约施工成本，避免了对环境的破坏。
 附图说明
图1为实施例1的除尘装置的结构示意图；
图2为实施例1的过滤箱的结构示意图；
图3为实施例2的除尘装置的结构示意图；
图4为实施例2的过滤箱的结构示意图；
其中，1、水泥罐，2、过滤箱，3、水池，4、水泥罐的气体出口，5、空气滤芯，6、过滤箱的气体进口，7、空间，8、过滤箱的气体出口，9、过滤进口管，10、过滤出口管，11、收集室,12、物料出口，13、阀门，14、过滤一室，15、过滤二室。
 本发明的实施方式
本申请的一种典型实施方式，提供了一种砼搅拌站水泥罐除尘装置，由水泥罐、过滤箱和水池组成，水泥罐、过滤箱和水池均设置在地面上，水泥罐的气体出口开设在水泥罐顶部，过滤箱内设有空气滤芯，过滤箱的气体进口设置在过滤箱一侧的中部或上部，空气滤芯与过滤箱的气体进口之间设有空间，过滤箱的气体出口设置在过滤箱另一侧的中部或上部，水泥罐的气体出口通过过滤进口管连接过滤箱的气体进口，过滤箱的气体出口通过过滤出口管与水池连接。
将过滤箱设置在地面，并将气体进口和气体出口均设置在中部或上部，且空气滤芯与过滤箱的气体进口之间设有空间，当水泥罐被物料灌满时，物料沿着过滤进口管进入至过滤箱，并在重力的作用下由空气滤芯与过滤箱的气体进口之间的空间进入过滤箱的底部，从而防止物料堵塞进入过滤箱的通道，同时避免物料堵塞空气滤芯。然而该设置，在进行除尘过程中，气体与滤芯的接触面积有限，无法完全去除高压空气中的粉尘，因而再设置水池，将过滤箱过滤后的气体通入水池中，对气体中的微量粉尘进行捕集，从而达到除尘的目的，又能防止因打满水泥罐导致的冒顶事故。
针对于上述的技术方案，由于单独水池也具有除尘、防止冒顶事故的潜在应用，因而拟进一步省略过滤箱。然而在实际操作过程中发现，若仅采用水池进行除尘，存在以下几点缺陷：1.进入水池中的物料难以回收再利用。2.由于水泥罐中的压力较高，气体输送物料进入水池后，对水池中的水扰动较大，从而难以完全除尘。所以本公开的设置的过滤箱不仅具有初步过滤的作用，还有缓冲、减压、收集冒出物料的作用。
该实施方式的一种或多种实施例中，所述过滤进口管的管径不小于160mm。能够防止管径过小使得物料进入过滤箱的物料压力过大，从而避免物料喷射到空气滤芯上。
该实施方式的一种或多种实施例中，过滤箱的气体进口高于过滤箱的气体出口。能够充分利用过滤箱中的空气滤芯进行过滤。
该实施方式的一种或多种实施例中，水泥罐的气体出口高于过滤箱的气体进口。使高压空气更容易将物料挤进过滤箱中，防止水泥罐中的压力过高。该实施方式的一种或多种实施例中，空气滤芯与过滤箱的气体进口之间的空间底部倾斜设置。便于进入过滤箱的物料的收集。该实施方式的一种或多种实施例中，空气滤芯与过滤箱的气体进口之间的空间下部开设物料出口，物料出口设有阀门。便于物料的排出。该实施方式的一种或多种实施例中，所述过滤箱按照气体流向依次被分隔为收集室和过滤室，收集室不设空气滤芯，过滤室内设有空气滤芯，收集室和过滤室的连通口位于过滤箱内的上部。所述空间即为收集室。
该实施方式的一种或多种实施例中，所述过滤室分隔为过滤一室和过滤二室，过滤一室和过滤二室均设有空气滤芯，过滤一室和过滤二室的连通口位于过滤箱内的下部。能够充分利用空气滤芯。
该实施方式的一种或多种实施例中，所述过滤一室位于收集室与过滤二室之间，所述过滤一室的空气滤芯由上至下为若干层，且每层空气滤芯与过滤一室侧壁设有孔道，每层空气滤芯的孔道呈交错排布。防止收集室中的物料过多溢流至过滤一室堵塞空气滤芯。
本公开的另一种实施方式提供了一种砼搅拌站水泥罐除尘方法，提供上述除尘装置，水泥罐内的气体进入过滤箱后进行缓冲减压，并通过过滤芯进行初步过滤，然后进入水池中，水池中的水将过滤箱过滤后气体中的粉尘进行捕集后排放；当水泥罐中的物料打满时，水泥罐内的空气将部分物料通过过滤进口管输送至过滤箱，物料在重力的作用下沉降至过滤器底部，空气经过依次经过滤芯过滤、水捕集粉尘后排放。
为了使得本领域技术人员能够更加清楚地了解本公开的技术方案，以下将结合具体的实施例详细说明本公开的技术方案。
实施例 1
一种砼搅拌站水泥罐除尘装置，如图1~2所示，由水泥罐1、过滤箱2和水池3组成。水泥罐1、过滤箱2和水池3均设置在地面上。水泥罐的气体出口4开设在水泥罐1顶部。过滤箱2内设有空气滤芯5，过滤箱2的气体进口6设置在过滤箱2一侧的上部，空气滤芯5与过滤箱的气体进口6之间留有空间7，过滤箱的气体出口8设置在过滤箱2另一侧的中部。
水泥罐的气体出口4通过过滤进口管9连接过滤箱的气体进口6，过滤箱的气体出口8通过过滤出口管10与水池3连接。
过滤进口管9的管径为160mm。过滤箱的气体进口6高于过滤箱的气体出口8。水泥罐的气体出口4高于过滤箱的气体进口6。
除尘方法为：水泥罐内的气体进入过滤箱后进行缓冲减压，并通过过滤芯进行初步过滤，然后进入水池中，水池中的水将过滤箱过滤后气体中的粉尘进行捕集后排放；当水泥罐中的物料打满时，水泥罐内的空气将部分物料通过过滤进口管输送至过滤箱，物料在重力的作用下沉降至过滤器底部，空气经过依次经过滤芯过滤、水捕集粉尘后排放。
采用本实施例前：每次冒顶都会损失5吨左右水泥，灌顶的仓顶除尘器顶飞将会损失10000元左右，而且还具有高处落物伤人的风险。采用本实施例的除尘装置后：每个大罐需用直径160mm的铁管20米，加上焊接和铁箱费用，总共需用1000元左右。大罐运输过程中随大罐搬运，不产生额外费用，每个项目工地一般设置两个搅拌站，每个搅拌站3~4个大罐，平均一个项目工地大约能节省8万元左右。具有较好的经济效益。
实施例 2
一种砼搅拌站水泥罐除尘装置，如图3~4所示，由水泥罐1、过滤箱2和水池3组成。水泥罐1、过滤箱2和水池3均设置在地面上。水泥罐的气体出口4开设在水泥罐1顶部。过滤箱2内设有空气滤芯5，过滤箱的气体进口6设置在过滤箱2一侧的上部，过滤箱的气体出口8设置在过滤箱2另一侧的上部。水泥罐的气体出口4通过过滤进口管9连接过滤箱的气体进口6，过滤箱的气体出口8通过过滤出口管10与水池3连接。过滤进口管9的管径为160mm。水泥罐的气体出口4高于过滤箱的气体进口6。
过滤箱2按照气体流向依次被分隔为收集室11和过滤室，收集室11不设空气滤芯，过滤室内设有空气滤芯，过滤箱的气体进口6设置在收集室11的侧壁上，收集室11和过滤室的连通口位于过滤箱内的上部。收集室11底部倾斜设置。收集室11侧壁底部开设物料出口12，物料出口12设有阀门13。
过滤室分隔为过滤一室14和过滤二室15，过滤一室14和过滤二室15均设有空气滤芯，过滤一室14和过滤二室15的连通口位于过滤箱2内的下部。
过滤一室14位于收集室11与过滤二室15之间，过滤一室14的空气滤芯5由上至下为若干层，且每层空气滤芯与过滤一室14侧壁设有孔道，每层空气滤芯的孔道呈交错排布。过滤箱的气体进口6位于过滤二室15的侧壁。

Claims (10)

  1. 一种砼搅拌站水泥罐除尘装置，其特征是，由水泥罐、过滤箱和水池组成，水泥罐、过滤箱和水池均设置在地面上，水泥罐的气体出口开设在水泥罐顶部，过滤箱内设有空气滤芯，过滤箱的气体进口设置在过滤箱一侧的中部或上部，空气滤芯与过滤箱的气体进口之间设有空间，过滤箱的气体出口设置在过滤箱另一侧的中部或上部，水泥罐的气体出口通过过滤进口管连接过滤箱的气体进口，过滤箱的气体出口通过过滤出口管与水池连接。
  2. 如权利要求1所述的除尘装置，其特征是，所述过滤进口管的管径不小于160mm。
  3. 如权利要求1所述的除尘装置，其特征是，过滤箱的气体进口高于过滤箱的气体出口。
  4. 如权利要求1所述的除尘装置，其特征是，水泥罐的气体出口高于过滤箱的气体进口。
  5. 如权利要求1所述的除尘装置，其特征是，空气滤芯与过滤箱的气体进口之间的空底部倾斜设置。
  6. 如权利要求1所述的除尘装置，其特征是，空气滤芯与过滤箱的气体进口之间的空间下部开设物料出口，物料出口设有阀门。
  7. 如权利要求1所述的除尘装置，其特征是，所述过滤箱按照气体流向依次被分隔为收集室和过滤室，收集室不设空气滤芯，过滤室内设有空气滤芯，收集室和过滤室的连通口位于过滤箱内的上部。
  8. 如权利要求7所述的除尘装置，其特征是，所述过滤室分隔为过滤一室和过滤二室，过滤一室和过滤二室均设有空气滤芯，过滤一室和过滤二室的连通口位于过滤箱内的下部。
  9. 如权利要求8所述的除尘装置，其特征是，所述过滤一室位于收集室与过滤二室之间，所述过滤一室的空气滤芯由上至下为若干层，且每层空气滤芯与过滤一室侧壁设有孔道，每层空气滤芯的孔道呈交错排布。
  10. 一种砼搅拌站水泥罐除尘方法，其特征是，提供权利要求1~9任一所述的除尘装置，水泥罐内的气体进入过滤箱后进行缓冲减压，并通过过滤芯进行初步过滤，然后进入水池中，水池中的水将过滤箱过滤后气体中的粉尘进行捕集后排放；当水泥罐中的物料打满时，水泥罐内的空气将部分物料通过过滤进口管输送至过滤箱，物料在重力的作用下沉降至过滤器底部，空气经过依次经过滤芯过滤、水捕集粉尘后排放。
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