SCR脱硝催化剂检测试验台，就是满足对SCR脱硝催化剂的磨损强度检测而设计开发的装置。该装置主要目标客户为热电厂，使客户能方便准确在检测催化剂模块的耐磨损性能，为烟气脱硝中催化剂的设计、生产和使用提供准确的实验数据。

本试验台设计成卧式结构，检测装置主体结构为一根水平放置的风管，风管前端安装有涡旋气泵提供动力，空气自进风口由涡旋气泵吹入管道。管道上设有两个前后布置的长方形样品仓，用于放置测试催化剂样品。在两个样品仓中间设有磨损剂（石英砂颗粒）加料口，磨损剂由进料口以恒定速率注入水平放置的风管，并由涡旋气泵产生的气流携带向下游输送，带有磨损剂的气流通过下游测试样品仓中催化剂模块中间的孔隙打磨催化剂模块。磨损下的催化剂粉末被气流带走，因此测试样品减少的质量可以间接反映出其磨损性。管道末端连接有一套磨损剂分离系统，分离后的磨损剂落于底部料斗中，而气流则经排风口排出。

水平设置的风管上安装有涡街流量计、压力变送器、风速仪等检测仪器仪表，用于监控及调整管道内风速的大小，使试验台中管道内的风速保持一个合适的、稳定的状态。

磨损剂加料机构由磨损剂储存料斗、阀门、给料料斗、螺旋加料机等组成，螺旋加料机由变频电机驱动，可自由调整转速，进而自由控制磨速剂进入管道的速度。

试验开始前，往给料料斗中加入适量的经筛分的磨损剂，对比样品仓和测试样品仓中各放入相同的催化剂样品，开启风机，观察流量计、压力变送器及风速仪，调节风机频率及风量调节机构，使管道中风量及风速达到要求的稳定的数值，将磨损剂加料螺旋调整到合适的速度并启动，使之往管道中均匀加入磨损剂，控制系统开始计时，当达到设定的时间后，控制系统自动停止螺旋加料机的加料工作，风机延时一定时间后停止。操作人员开启脉冲除尘装置，将除尘器中粘附的磨损剂全部清理到磨损剂收集箱中，取出并称量。从样品仓中取出对比样品和测试样品，并分别称量。由磨损剂的重量就可以计算出通过测试样品的气体中磨损剂的浓度，通过测试样品和对比样品的重量差，就可以计算出催化剂样块的磨损程度，从而计算出催化剂的磨损强度。

催化剂磨损强度检测试验台由风机(涡旋气泵)、风量调节装置、对比样品仓、自动给料机构、测试样品仓、磨损剂收集装置、过滤器等主要部分组成，本系统测试样品采用串联方式

The SCR denitration catalyst detection test bench is a device designed and developed to meet the wear strength detection of SCR denitration catalysts. The main target customers of this device are thermal power plants, enabling customers to conveniently and accurately detect the wear resistance performance of catalyst modules, and providing accurate experimental data for the design, production, and use of catalysts in flue gas denitrification.

This test bench is designed as a horizontal structure, and the main structure of the detection device is a horizontally placed air duct. A vortex air pump is installed at the front end of the air duct to provide power, and air is blown into the pipeline from the inlet by the vortex air pump. There are two rectangular sample compartments arranged in front and back on the pipeline for placing test catalyst samples. There is a feeding port for abrasive (quartz sand particles) between two sample chambers. The abrasive is injected into a horizontally placed air duct at a constant rate through the feeding port and carried downstream by the airflow generated by the vortex air pump. The airflow with abrasive passes through the pores in the middle of the catalyst module in the downstream test sample chamber to polish the catalyst module. The catalyst powder under wear is carried away by the airflow, so the reduced mass of the test sample can indirectly reflect its wear resistance. There is a set of abrasive separation system connected at the end of the pipeline, and the separated abrasive falls into the bottom hopper, while the airflow is discharged through the exhaust outlet.

The horizontally set air duct is equipped with vortex flowmeter, pressure transmitter, anemometer and other detection instruments to monitor and adjust the wind speed inside the pipeline, so as to maintain a suitable and stable state of wind speed inside the pipeline in the test bench.

The wear agent feeding mechanism consists of a wear agent storage hopper, valves, feeding hopper, spiral feeder, etc. The spiral feeder is driven by a variable frequency motor and can freely adjust the speed, thereby freely controlling the speed of the wear agent entering the pipeline.

Before the experiment begins, add an appropriate amount of screened abrasive to the feeding hopper, compare the same catalyst samples in the sample chamber and the test sample chamber, turn on the fan, observe the flow meter, pressure transmitter, and anemometer, adjust the fan frequency and air volume adjustment mechanism to achieve the required stable values of air volume and air speed in the pipeline, adjust the abrasive feeding screw to the appropriate speed and start it, so that the abrasive is evenly added to the pipeline. The control system starts timing. When the set time is reached, the control system automatically stops the feeding work of the screw feeder, and the fan stops after a certain delay. The operator turns on the pulse dust removal device, cleans all the abrasive adhered in the dust collector into the abrasive collection box, takes it out and weighs it. Take out the comparison sample and the test sample from the sample warehouse, and weigh them separately. The concentration of the abrasive in the gas passing through the test sample can be calculated based on the weight of the abrasive. By comparing the weight difference between the test sample and the control sample, the degree of wear of the catalyst block can be calculated, thereby determining the wear strength of the catalyst.

The catalyst wear strength detection test bench consists of a fan (vortex air pump), an air volume adjustment device, a comparison sample chamber, an automatic feeding mechanism, a test sample chamber, a wear agent collection device, a filter, and other main parts. The test samples of this system are connected in series.