JPH0713444U - Waste crusher with heating unit - Google Patents

Abstract

(57) [Summary] [Purpose] The heated waste is supplied to a crusher to crush it to prevent condensation of debris and fine dust and white smoke due to steam condensation, and to significantly increase the oxygen concentration in the crusher. The aim is to obtain a "waste crusher equipped with a heating unit" that reduces the risk of explosions and enables safe operation. [Structure] In a waste crusher provided with a feeder for crushing waste in a steam atmosphere, a transport means for transporting waste is connected to an inlet of the feeder, and the transport means is surrounded by a casing, The casing is characterized in that a heated air pipe outlet is provided at one end and an exhaust pipe is provided at the other end to form a waste heating unit, and the waste heated by the heating unit is conveyed to a feeder. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a waste crusher for crushing waste in a steam atmosphere, and more particularly to a waste crusher having a heating unit.

[0002]

[Prior art]

 Conventionally, noren is provided at the inlet and outlet of the crusher to prevent the danger of various kinds of waste mixed with combustible materials, such as general waste and the body of an abandoned vehicle. It is known that a steam curtain is provided inside the crusher to eject the steam and the oxygen concentration is remarkably reduced by a steam atmosphere in which the crusher is filled with the steam (for example, Japanese Patent Publication No. 58-13220). Issue). In this type of waste crusher, non-oxygen gas such as steam is fed into the crusher, and air is prevented from entering by the noren, scattering of non-oxygen gas is prevented, and the oxygen concentration in the crusher is significantly reduced. This prevents the risk of explosion and enables safe operation.

[0003]

[Problems to be solved by the device]

 However, in the above-described conventional configuration, when waste having a low temperature is supplied to the crusher by the feeder and crushed in a steam atmosphere, the waste having a low temperature and steam contact with each other, so that the steam is condensed in the vicinity of the feeder. Generated, obstructing the view of the TV camera for operation monitoring, and crushed products containing condensed water are discharged from the crusher, and fine dust generated due to crushing is also discharged with water. It is not preferable because it may be deposited on the inner wall surface of the duct of the dust collection system where it is installed, making operation unsmooth. In addition, the amount of water vapor consumed to keep the oxygen concentration in the crusher low will increase and the leakage to the outside will increase, which will hinder the image capture by TV cameras, etc., and monitor and adjust the operation of the waste supply status. It is not preferable because it may make it unsmooth.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to form a heating portion of waste in a conveying means for conveying waste and to raise the temperature in order to prevent condensation of water vapor. The generated waste is fed from the feeder to the crusher for crushing, and it is possible to effectively prevent crushed products containing water and fine dust from being discharged from the crusher, and to significantly reduce the oxygen concentration in the crusher. Therefore, it is possible to prevent the risk of explosion, etc., to secure the visibility of the feeder part and to operate the feeder under the monitoring of the industrial TV to adjust the supply amount according to the grain size of the waste. To obtain a waste shredder equipped with a heating unit that enables safe operation.

[0005]

[Means for Solving the Problems]

 According to the present invention, in a waste crusher provided with a feeder for crushing waste in a steam atmosphere, a transport means for transporting waste is connected to the inlet of the feeder, and the transport means is surrounded by a casing. At the same time, the outlet of the heated air pipe is installed at one end of the casing, and the exhaust pipe is installed at the other end to form the heating part of the waste. It is characterized by being transported.

[0006]

[Action]

 With the above configuration, low-temperature, high-moisture waste is heated by the heating unit, and the heated waste is conveyed to the feeder and supplied to the crusher for crushing, so it is crushed in a steam atmosphere. However, the condensation of water vapor can be avoided, and it is possible to effectively prevent discharge of water-containing crushed products and fine dust from the crusher. In addition, it is possible to reduce the amount of water vapor consumed by raising the temperature of the waste and to reduce the leakage to the outside, which effectively prevents the operation monitoring and adjustment of the waste supply state from being disturbed.

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of a waste crusher equipped with a heating unit according to an embodiment of the present invention.

In FIG. 1, reference numeral 10 denotes a waste crusher, preferably a horizontal rotary crusher is used, a rotor equipped with a plurality of hammers is rotated at high speed, and a gap provided between the crusher and a grate provided in the crusher. By applying impact force, shearing force, etc. to the waste supplied in step 2, various kinds of waste, such as general waste, metal-based waste such as car body, and bulky refuse, are crushed. Reference numeral 12 denotes a feeder provided in the waste crusher 10. The feeder 12 is provided on the supply chute 13 at the entrance of the waste crusher 12 to adjust the supply of the waste to the waste crusher 12. Reference numeral 14 denotes a conveying means such as a pan conveyer, and the discharging end of the conveying means 14 is connected to the inlet of the feeder 12 via a supply chute 13.

Reference numeral 18 denotes a hopper, into which various kinds of wastes are thrown in, the supply means 16 is operated and moved to the supply end of the conveying means 14, the wastes are conveyed by the conveying means 14, and the wastes are discharged. From the end, it descends on the supply chute 13 and is supplied from the feeder 12 to the waste crusher 10.

The conveying means 14 and the supply chute 13 are surrounded by a casing 24, and inside the casing 24, movable blocking plates 36, 36 ′, 36 are provided at positions near the supply end and the discharge end of the conveying means 14. ″ Is provided to partition the internal space to form the heating part 22 of the waste, and the passage with the outside air is blocked, but the passage of the waste is allowed.

The air outlet 26 of the heated air pipe 28 is opened at a position corresponding to one end of the casing 24, that is, the supply end of the conveying means 14, and the other end of the casing 24, that is, the discharge end of the conveying means 14. An opening for the exhaust pipe 38 is provided at a corresponding position.

Reference numeral 30 indicates an air heater, and a steam heating method is suitable, and reference numeral 48 indicates heating steam. The air 32 is heated in the air heater 30 to become the heated air 34, flows in the heated air pipe 28, and is blown into the heating unit 22 from the air outlet 26. In the heating unit 22, the low temperature waste containing water is heated by the contact with the heating air in the process of being transported by the transporting means 14 to become the heated waste, and the heating unit 22, that is, the movable waste. It is discharged from the blocking plates 36 ', 36 ", lowered on the supply chute 13 and supplied to the waste crusher 10 from the feeder 12 as described above, and the crushing operation is performed.

The heated air blown out in the heating section 22 has its temperature lowered by heat exchange with waste, and is accompanied by fine dust, and is exhausted as exhaust air from an opening located between the movable blocking plates 36 ′ and 36 ″. After flowing through the pipe 38 and collecting exhaust gas by a dust collecting device (not shown), it is discharged to the atmosphere.

The casing of the crusher 10 is provided with an ejection port, and the ejection port is connected to the steam pipe 42 via a control valve (not shown) so that steam is ejected into the crusher 10. Reference numeral 46 indicates an oxygen concentration analyzer for detecting the oxygen concentration in the crusher 10, and the control valve is operated via the controller to control the steam flow rate to make the inside of the crusher 10 into a steam atmosphere to change the oxygen concentration. The amount is significantly reduced to prevent the occurrence of danger such as explosion due to the crushing of various wastes.

In the crusher 10, a large amount of fine dust is generated in association with the crushing operation, and these dusts flow in the exhaust pipe 38 ′ provided on the casing 24 above the crusher 10. After the exhaust dust is collected by the dust collector described above, it is discharged to the atmosphere. Further, the crushed products crushed in the crusher 10 are discharged by the discharge conveyor 20 provided below the crusher 10, and the end portion of the discharge conveyor 20 is provided with a blocking means 50 or the like capable of preventing outside air from entering. There is.

Reference numerals 40 and 40 denote TV cameras, and are disposed on the casing 24 at positions corresponding to the supply end of the conveying means 14 and the inlet of the feeder 12, respectively. The movement state is monitored to enable proper operation of equipment such as the crusher 10 and the feeder 12.

When the waste is crushed in the steam atmosphere in the crusher 10, steam condensation occurs due to solid-vapor contact with the waste in the crusher, but the temperature of the waste is raised. Since the condensation of water vapor is remarkably reduced, the oxygen concentration in the water vapor atmosphere can be remarkably reduced without increasing the vapor amount of the jet water.

Next, the operation will be described. Various wastes containing water supplied from the hopper 18 are introduced, and are conveyed by the conveying means 14 under the operation of the supplying means 16 and pass through the heating section 22, and when they contact the heated air 34, The temperature-increased waste is heated, descends on the supply chute 13, is fed from the feeder 12 to the waste crusher 10, is crushed in a steam atmosphere, and the condensation of steam is reduced during crushing. By significantly reducing the acid concentration inside the machine without increasing the amount of steam emitted, it is possible to effectively prevent the occurrence of danger such as explosion, and the crushed products are discharged by the discharge conveyor 20 without causing dew condensation, etc. Reach

Further, since the temperature of the fine dust is also raised, it is possible to avoid the occurrence of accumulation obstacles on the wall surface due to dew condensation during the operation of the dust collector system, and it is possible to achieve smooth operation. Furthermore, since the amount of jetted water vapor is reduced, the leakage to the outside of the crusher 10 is reduced, and the waste material supply state is changed to CRT with a clear image without hindering the imaging by the TV cameras 40, 40. It can be displayed so that operation monitoring and adjustment will not be disturbed.

[0020]

[Effect of device]

 As described above, according to the present invention, the heated waste is crushed by the crusher without conspicuous changes in the structure of the crusher, and the crushed material and fine dust are condensed to cause the next process or collection. It is possible to prevent the operation of the dust system, etc. from becoming unsmooth, reduce the amount of water vapor consumed to create a water vapor atmosphere, and reduce leakage to the outside, making it difficult to monitor and adjust the operation of the waste supply state. It has a great effect such that smoothing can be effectively prevented.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a waste crusher including a heating unit according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Waste crusher 12 Feeder 14 Conveying means 22 Heating part 24 Casing 26 Air outlet 28 Heated air pipe 38, 38 'Exhaust pipe

Claims (1)

[Scope of utility model registration request] 1. In a waste crusher provided with a feeder for crushing waste in a steam atmosphere, a transport means for transporting waste is connected to an inlet of the feeder, and the transport means is surrounded by a casing. At the same time, the outlet of the heated air pipe is provided at one end of the casing and the exhaust pipe is provided at the other end to form a heating unit for waste, and the waste heated by the heating unit is conveyed to the feeder. Waste crusher equipped with a characteristic heating unit.