CN-224206935-U - Solid-liquid compatible contamination device

CN224206935UCN 224206935 UCN224206935 UCN 224206935UCN-224206935-U

Abstract

The utility model provides a solid-liquid compatible contamination device, and belongs to the technical field of toxicological experimental equipment. The device comprises a contamination cabinet, wherein a solid generator and an exposure cabin are arranged in the contamination cabinet, a liquid generator is arranged at the top of the exposure cabin, the solid generator and the liquid generator are fixedly connected with the same air inlet pipeline, the solid generator is fixedly connected with a dust conveying pipe, the liquid generator is connected with a liquid atomizer through a pipeline, a mixing component is used for mixing solid dust and atomized dust suppressant together, and the mixing component is connected with the exposure cabin. Through setting up mixing element, can be in the same place solid dust and atomizing dust suppressant mixture, make the aerosol concentration that forms after mixing evenly distribute in exposing the cavity in cabin, mixing element can also collect the agglomeration thing that the settlement formed after atomizing dust suppressant combines with the dust at the in-process of mixing solid dust and atomizing dust suppressant.

Inventors

YU RONGXIA
HUANG LONGSHENG
WANG GAOWEN
REN JIAZE
Di Xiaoce
LI JINYANG
OuYang Longshui
WANG RUIXIANG
HUANG ZHIAN
MENG KEYING
DING HAO
YANG YONGRUI
WANG HONGSHENG
LIU QIANMING
GAO JIANQIANG
CAI XINGSHENG

Assignees

北京科技大学
广东建科建设咨询有限公司
广东省建筑工程监理有限公司

Dates

Publication Date: 20260508
Application Date: 20250208

Claims (7)

1. The solid-liquid compatible contamination device is characterized by comprising a contamination cabinet, wherein a solid generator and an exposure cabin are arranged in the contamination cabinet, a liquid generator is arranged at the top of the exposure cabin, the solid generator and the liquid generator are fixedly connected with the same air inlet pipeline, the solid generator is fixedly connected with a dust conveying pipe, and the liquid generator is connected with a liquid atomizer through a pipeline; the mixing assembly is used for mixing the solid dust and the atomized dust suppressant together, and is connected with the exposure cabin; The mixing assembly comprises a circular partition plate fixedly connected to the inner wall of the exposure cabin, a guide cylinder is fixedly connected to the outer wall of the top of the circular partition plate, four S-shaped elastic plates are fixedly connected to the outer wall of the guide cylinder, and a circular sleeve plate is fixedly connected to one end of each S-shaped elastic plate; Two first connecting plates are symmetrically arranged on the outer wall of the circular sleeve plate, one end of each first connecting plate is fixedly connected with a baffle plate, two second connecting plates are symmetrically arranged on the outer wall of the circular sleeve plate, and one end of each second connecting plate is fixedly connected with a propping plate; The brushless motor is fixedly connected to the outer wall of the top of the circular partition plate, a first piston tube is fixedly connected to the outer wall of the bottom of the circular partition plate, a first pushing rod is connected to the inner wall of the first piston tube in a sliding mode, and a plurality of pushing teeth are fixedly connected to the outer wall of one side of the first pushing rod.
2. The solid-liquid compatible contamination apparatus of claim 1, wherein one end of the first piston tube is fixedly connected with a connecting pipe, one end of the connecting pipe far away from the first piston tube is provided with two bifurcation ports, the two bifurcation ports are respectively and fixedly connected with a second piston tube, the outer walls of the two second piston tubes are respectively and fixedly connected with a clamping plate, and the inner walls of the two second piston tubes are respectively and slidably connected with a second pushing rod.
3. The solid-liquid compatible contamination device according to claim 2, wherein one end of the second pushing rod is fixedly connected with a movable plate, a second sliding groove is formed in the outer wall of the top of the movable plate, a second spring is fixedly connected to the inner wall of one end of the second sliding groove, one end of the second spring is fixedly connected with a connecting limiting column, a vent hole is formed in the outer wall of the top of the movable plate, a vent supporting plate is mounted on the vent hole, and limiting supporting columns are symmetrically arranged on two sides of the outer wall of the top of the movable plate.
4. The solid-liquid compatible contamination apparatus of claim 2, wherein the top end outer walls of the two clamping plates are respectively and fixedly connected with a first fixing plate, the outer walls at two ends of the first fixing plate are symmetrically provided with C-shaped buckles, and the two ends of the outer wall at one side of the first fixing plate are symmetrically provided with a second fixing plate.
5. The solid-liquid compatible contamination apparatus of claim 4, wherein the outer wall of one side of the first fixing plate is symmetrically provided with first sliding grooves, the outer wall of the bottom end of the first fixing plate is symmetrically provided with a C-shaped supporting plate, one end of the C-shaped supporting plate is fixedly connected with a first fixing column, and the outer wall of the first fixing column is rotationally connected with a rotating cylinder.
6. The solid-liquid compatible contamination apparatus of claim 5, wherein the inner wall of the first sliding groove is slidably connected with an arc-shaped shovel plate, a first spring is fixedly connected with the inner wall of the top of the first sliding groove, one end of the first spring is fixedly connected with a connecting column, and one end of the connecting column is fixedly connected with a limiting plate.
7. The solid-liquid compatible contamination device of claim 4, wherein the inner wall of the C-shaped buckle is clamped with a second fixing column, the outer wall of the second fixing column is fixedly connected with a dust storage box, a third sliding groove is formed in the bottom of the dust storage box, a sliding plate is slidingly connected to the inner wall of the third sliding groove, and the outer wall of the second fixing column is fixedly connected with a sterile cloth.

Description

Solid-liquid compatible contamination device Technical Field The utility model relates to the technical field of toxicological experimental equipment, in particular to a solid-liquid compatible toxicant exposure device. Background The HOPE-MED8050 contamination cabinet is professional experimental equipment and is widely applied to dust toxicity research, in particular to animal experiments. Healthy mice are selected as experimental animals, the healthy mice are randomly divided into an experimental group and a control group according to an experimental design, then the mice are placed in an exposure cabin of a contamination cabinet, the aerosol concentration of each animal hole site is guaranteed to be uniformly distributed, the error is within +/-10%, then the contamination cabinet is started, and the dust concentration and the exposure time are regulated and controlled according to the experimental scheme, for example, the mice are exposed to 170-190mg/m < 3 > of dust concentration every day for 2 hours. And (3) monitoring and recording experimental data in real time in the contamination process, and collecting a mouse lung tissue sample according to an experimental design after the experiment is finished, and carrying out pathological examination and biochemical analysis. The contamination cabinet is provided with two channels, one for feeding the solids (via the solids generator) and the other for feeding the liquid and atomizing it (by means of the liquid generator). If the solid contamination mode is selected, the gas pipeline is connected with the solid channel, the solid dust can be blown into the exposure cabin of the contamination cabinet under the pushing of the gas, and if the liquid contamination mode is selected, the gas pipeline is connected with the liquid channel, and the liquid can be atomized under the action of the gas and blown into the exposure cabin of the contamination cabinet. In order to achieve the purpose of solid-liquid two-phase combined contamination, atomized liquid and solid dust are required to be simultaneously input into the exposure cabin by using the same airflow, but when the atomized liquid and the solid dust are simultaneously input, the concentration of aerosol formed after the atomized liquid and the solid dust are mixed cannot be uniformly distributed, so that the solid-liquid compatible contamination device is provided to meet the requirements. Disclosure of utility model The utility model provides a solid-liquid compatible contamination device, which can mix solid dust and atomized dust suppressant together by arranging a mixing component, so that the concentration of aerosol formed after mixing is uniformly distributed in a cavity of an exposure cabin, and the mixing component can collect agglomerates formed by accelerating sedimentation after combining the atomized dust suppressant and dust in the process of mixing the solid dust and the atomized dust suppressant, thereby providing a basis for calculating dust suppression efficiency of the dust suppressant. In order to solve the technical problems, the utility model provides the following technical scheme: A solid-liquid compatible contamination device comprises a contamination cabinet, wherein a solid generator and an exposure cabin are arranged in the contamination cabinet, a liquid generator is arranged at the top of the exposure cabin, the solid generator and the liquid generator are fixedly connected with a same air inlet pipeline, a dust conveying pipe is fixedly connected to the solid generator, the liquid generator is connected with a liquid atomizer through a pipeline, the contamination cabinet further comprises a mixing assembly, the mixing assembly is used for mixing solid dust and atomized dust suppressant together, the mixing assembly is connected with the exposure cabin, the mixing assembly comprises a circular partition plate fixedly connected to the inner wall of the exposure cabin, a guide cylinder is fixedly connected to the outer wall of the top of the circular partition plate, four S-shaped elastic plates are fixedly connected to the outer wall of the guide cylinder, one end of each S-shaped elastic plate is fixedly connected with a circular sleeve plate, two first connecting plates are symmetrically arranged on the outer wall of each circular sleeve plate, one end of each first connecting plate is fixedly connected with a baffle plate, two second connecting plates are symmetrically arranged on the outer wall of each circular sleeve plate, a plurality of first connecting plates are fixedly connected with a piston rod and fixedly connected with one side of the piston, and a plurality of piston rods are fixedly connected to the outer wall of each piston rod. Optionally, one end fixedly connected with connecting tube of first piston pipe, connecting tube keeps away from the one end of first piston pipe and has two bifurcation mouths, and two bifurcation mouths are fixedly connected with secon