SU1463664A1 - Installation for pneumatic transport of loose material - Google Patents

Abstract

This invention relates to the pneumatic transportation of bulk materials. The purpose of the invention is to automate the transportation process. The unit for pneumatic transportation of bulk material contains intake nozzle 1, communicated through valve 14 to the atmosphere, suction material line 2, separator 3, air line 6 with air flow sensor 7, gas blower 5 and discharge material line 4. The material line 4 communicates via feeder 8c with adjustable actuator 9 - with a separator 3. In the lower part of the separator 3, an air chamber 12 is provided, connected with a vacuum tube 13 Q with the upper part of the separator 3. The shut-off valve 15 of the tube 13 and the adjustable valve 14 are connected with yes In addition, sensor 7 is connected with an adjustable actuator 9, and sensors 10 and 11 of the separator level 3 are connected to a control valve 14. When the material pipe 4 is overloaded, sensor 7 sends a signal to open valve 14 and reduce the capacity of the feeder 8. Valve 14 . adjusts the filling of the feeder 8 with the material, depending on the air flow through the sensor 7. The sensors 10 and P levels maintain a given level of material in the separator, affecting the control valve 14. 1 Il. and. Una (.и; ш ОлЭ as .i ,.

Description

The invention relates to pneumatic transport equipment, can be used for unloading and transporting bulk grain materials and products of their processing. D technological processes I and I feed animals for performing loading and unloading operations at feed stores or freight stations and can be used in all National economic sectors, for example, in the feed mill industry.

The purpose of the invention is to automate the control of the mode of transportation.

The drawing shows the general installation scheme for pneumatic

transporting bulk material

n order.

it is traced over it to the place of loading. The increase in the mass captured by the nozzle 1 material leads to povypyuniyu

 the resistance of the suction material supply line, the increase in the load on the gas blower 5, and the corresponding accumulation of air through it At the same time, the flow sensor 7 supplies signals to the actuator 9 of the rotor of the feeder in order to reduce the frequency of its rotation or completely shut off and the control valve i 4 of the nozzle 1 to reduce the concentration of the air mixture by adding air to the nozzle from the atmosphere. With a decrease in the concentration of material in the suction airflow, regulation is carried out in the reverse

The installation consists of an intake nozzle 1 connected by means of a suction material pipeline .2 to a separator 3, an injection material pipeline 4, a gas blower 5 providing pressure drop in the intake and pressure pipelines 6, an air pipe 6 with an air flow sensor 7 installed on it. The separator 3 has a discharge device in the inlet of the rotary feeder 8 with an adjustable drive 9 connected to the air flow sensor 7. The separator 3 is also provided with datas of the lower 10 and upper 1 levels and an air chamber 12 located between the separator and the rotary feeder. The separator 3 and the air chamber 12 are interconnected by a vacuum tube 13. At the nozzle 1 and the vacuum tube 13 there are installed, respectively, an adjustable 14 and a shut-off 15 valves connected to the air flow sensor 7. In addition, the sensors 10 and P are level with a control valve 14.

The installation works as follows

The gas blower 5 through the air pipe 6 creates a separation in the separator-3 suction material pipe 2, as well as a pressure in the pressure material pipe 3. The material passes through the heat pipe 1 through the suction pipe 2 into the separator 3. The material deposited in the separator 3 through the rotary feeder 8 is fed to the injection material line 4 and the conveyor.

 Similarly, the operation of the installation works with a change in the distance of transportation and the physicomechanical properties of the supplied material (grain size, grain size distribution, etc.).

Thus, the work of the suction and discharge piping occurs in a pulsating,. with variable concentration of the material along the length of the material pipeline. The frequency of the pulses depends on the distance of the feed, the physicomechanical properties of the material being transported, as well as on the uniformity of the material entering the suction line or the loading of the suction material pipeline.

When the material is filled in the separator 3 above the installation level of the sensor 10, the valve 15 opens on the vacuum tube 13, which provides a vacuum in the settling chamber 12, which contributes to an increase in the degree of filling of the rotary feeder 8 and an increase in the material flow. sensor 11, it is signaled to open the control valve 14 at nozzle I and material is reduced to the suction material line 2 ". ialoprovod 4 operates with maximum efficiency. The presence in the installation of a precipitation chamber associated with a vacuum

1463664

tube with a separator, allows to eliminate the pressure drop on the layer of material in the separator, and thus prevent the material from hanging and improve the filling of the rotary feeder.

Level sensors connected with a control valve on the nozzle monitor the filling of the separator material - “scarlet”. A control valve on the vacuum tube connected to the air flow sensor allows control of the separator loading: in the case of increased plant loading, when the discharge material can collapse, the control valve on the vacuum tube and the material outflow from the separator deteriorates, which in turn leads to a decrease in the filling of the rotary feeder.

The air flow sensor controls the control valve on the nozzle and when the BOTTOM PP ttm-chi / l ....- .T

15

20

, - -....., word./p. npj and npj with the water of the rotary feeder: when the unit is overloaded - the sensor opens the valve and stops the rotary feeder. The flow sensor provides the maximum allowable flow of material.

PMTA TTa TTTYcTrtrt ™ -.-.

, in case of accidents caused by the blockage of the suction and blower material pipeline and separator.

Claims (1)

The flow sensor 7 may be replaced separately installed by a vacuum sensor on the air duct 6 and the pressure-pressure sensor installed on the injection pipe between the gas blower and the point of entry of the material into the pipe. At the same time, the operation of the installation is controlled by the air pressure drop across the suction, discharge and discharge lines. The coordination of signals from sensors 7, 10 and 11 to the control of valves 14 and 15 is carried out using a system of blocking signals. Formula of the invention Installation for the pneumatic transportation of bulk material containing a sequentially connected intake nozzle, suction MAPTIC 25 suction pipe. separator, air conductor. g epgt.,. MULI p, - “--ii-in ifi, air conduit, gas blower and injection material conduit, located under the separator divider, variable-speed drive feeder, communicated with the separator And NAGNERTOT LTTT -, -. g V- -, jr with GTH4 - Rial for given conditions in vsass-30 communicated with the separator sedentary and injection material-material material passage, wires at rated load Mounted on-air duct  gas blowers. When you change the distance of air temperature, due to feed (lengths of suction and inlet-, RI IRUraem drive actuator, about tattelnogo tsattelnogo materkaloprovodov). physical, with and so. what with co-mechanical properties of feed and process flow The sensor sends a signal to the bathtub to monitor and increase or decrease the capacity of the plant. - L ° associated with the use of additional funds by means of an ear pan 40 with an elf-° bc air lock, material level and air flow rate of the nv ° separator, it allows to increase the reliability of the s ™ h oToGs ovlen installation, fully automate the atmosphere of his message with the process of monitoring and control of the installed in the place of operation of the plant, to ensure its upper and lower optimal operation, exclude: ° UR ° EX however, all sensors are connected, with a regulating valve,  , „ 15 20 , in case of emergency situations caused by the blockage of the suction and injection material pipeline and separator. The flow sensor 7 can be replaced by separately installed a vacuum sensor on the duct 6 and a pressure-pressure sensor installed on the injection material pipe between the gas blower and the point where the material is introduced into the material pipeline. At the same time, the operation of the installation is controlled by the air pressure drop across the suction, discharge and discharge lines. The signals from the sensors 7, 10 and 11 are matched to the control of the valves 14 and 15 by means of a signal blocking system. Formula of the invention Installation for the pneumatic transportation of bulk material containing a sequentially connected intake nozzle, suction MAPTIC five . suction pipe. separator, air conductor. g epgt.,. MULI p, - “--ii-in ifi, air conduit, gas blower and injection material conduit, located under the separator divider, variable-speed drive feeder, communicated with the separator And NAGNERTOT LTTT -, -.  GTG4 - 0 communicated with the separator  "By the material material,