JP2006300444A - Drying treatment machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten time required for drying treatment in a drying treatment machine. <P>SOLUTION: The drying treatment machine has a dryer for drying a treated material while agitating it by agitation blades disposed in a treating container; a heating device for heating the inside of the dryer; and a charging device for charging the treated material into the dryer. The drying treatment machine further has a control device for controlling the dryer, the heating device and the charging device, and a weight detector for detecting the weight of the treated material inside the dryer. When the weight detected by the weight detector is smaller than predetermined weight, the control device intermittently controls the charging device to charge the treated material into the dryer from the charging device. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention provides a drying device that is provided with a stirring blade inside a processing vessel and dries the processing object while stirring, a heating device that heats the inside of the drying device, and the processing object is charged into the drying device. More particularly, the present invention relates to control of a drying processor.

  Conventionally, a drying processor has been used to heat and dry moisture-containing raw materials and waste. This drying processor is provided with a stirring blade provided inside a processing container and drying while stirring the object to be processed, a heating device for heating the inside of the drying apparatus, and the object to be processed to the drying apparatus. And a charging device for charging.

  In the conventional drying processing machine, the processing object is input to the drying apparatus by the input device, the drying apparatus and the heating apparatus are operated for a certain period of time, and then all of the processing object is discharged from the drying apparatus. The to-be-processed object was thrown into the drying apparatus from the input device, and the to-be-processed object was dried.

As described above, in the conventional drying processor, the drying process is performed by so-called batch processing in which an object to be processed is dried at every time (for example, refer to Patent Document 1).
JP-A-11-106277

  However, in the above conventional drying processing machine, since the drying process is performed by batch processing for drying the object to be processed every time, the input device, the heating device, and the drying device are manually driven every time. It is necessary, and much labor and time are required to dry the object to be processed.

  In particular, since there is a limit to the amount of workpieces that can be put into the processing container of the drying apparatus, it has been difficult to dry a large amount of workpieces in a short time.

  Therefore, in the present invention according to claim 1, a drying device in which a stirring blade is provided inside the processing container to dry the workpiece while stirring, a heating device that heats the inside of the drying device, and a drying device In a drying processing machine having an input device for supplying an object to be processed, a controller for controlling the drying device, a heating device, and an input device, and weight detection for detecting the weight of the object to be processed inside the drying device And when the weight detected by the weight detection device becomes smaller than a predetermined weight set in advance, the control device is configured to input a workpiece from the input device to the drying device. The charging device was controlled intermittently.

  Further, in the present invention according to claim 2, in the present invention according to claim 1, the control device measures a time until the weight detected by the weight detection device reaches a predetermined weight set in advance, When this time is longer than a predetermined time set in advance, the drying apparatus is controlled to discharge the object to be processed from the drying apparatus.

  And in this invention, there exists an effect described below.

  That is, in the present invention according to claim 1, a drying device in which a stirring blade is provided inside a processing container to dry the object to be processed while stirring, a heating device that heats the inside of the drying device, and a drying device In a drying processing machine having an input device that inputs an object to be processed, a drying device, a heating device, a control device that controls the input device, and a weight detection device that detects the weight of the object to be processed inside the drying device, The control device interrupts the charging device so as to load the workpiece from the charging device to the drying device when the weight detected by the weight detection device becomes smaller than a predetermined weight set in advance. Since the process is controlled, the object to be processed can be automatically and continuously dried, and labor and time required for the drying process of the object to be processed can be reduced.

  In the present invention according to claim 2, the control device measures the time until the weight detected by the weight detection device reaches a predetermined weight set in advance, and this time is longer than the predetermined time set in advance. In addition, since the drying apparatus is controlled so as to discharge the object to be processed from the drying apparatus, it is possible to prevent an increase in processing time when performing the drying process continuously.

  A drying processor according to the present invention includes a drying device that is provided with a stirring blade inside a processing vessel and dries while processing an object to be processed, a heating device that heats the inside of the drying device, and a drying device. It has a charging device for charging the processed material, a liquefying device for liquefying water vapor generated inside the drying device, and a cooling water supply device for supplying cooling water to the liquefying device.

  Furthermore, the drying processor has a control device for controlling the drying device, the heating device, and the charging device, and a weight detection device for detecting the weight of the object to be processed inside the drying device.

  Then, when the weight detected by the weight detection device becomes smaller than a predetermined weight set in advance, the control device intermittently controls the charging device so as to load the workpiece from the charging device to the drying device. I am doing so.

  Therefore, in the drying processor, the workpiece can be automatically and continuously dried, and labor and time required for drying the workpiece can be reduced.

  Further, the control device measures the time until the weight detected by the weight detection device reaches a predetermined weight set in advance, and if this time is longer than the predetermined time set in advance, the control device removes the workpiece from the drying device. The drying device is controlled to discharge.

  Therefore, in the drying processor, it is possible to prevent an increase in processing time when performing a continuous drying process.

  Moreover, the liquefying device is configured to reuse water liquefied from water vapor as cooling water for the cooling water supply device.

  Therefore, in the drying processor, water vapor generated by the drying process can be used effectively, and the amount of water required for the drying process can be reduced, so that the cost required for the drying process can be reduced. .

  Moreover, the liquefying apparatus has the dust separation apparatus which isolate | separates the dust contained in water vapor | steam in the direct upper part of the processing container of a drying apparatus, and drops it to the inside of a processing container.

  For this reason, in the drying processor, it is possible to prevent dust from being contained in water that is liquefied and reused as cooling water, thereby reducing the failure of the cooling water supply device and the reduction of the heat exchange rate. Can be prevented.

  Furthermore, the liquefying device connects the upper part of the cooling device for cooling water vapor and the dust separation device in communication with a communication pipe, and a filter is disposed in the middle of the communication pipe in a replaceable manner.

  Therefore, in the drying processor, the filter is located on the downstream side of the dust separator, so the frequency of filter replacement can be reduced, and the filter is placed at the top of the drying processor, so the filter replacement work It can be made easier.

  Hereinafter, a specific structure and a control method of the drying processor according to the present invention will be described with reference to the drawings.

  The drying processor 1 includes a drying device 2 that dries an object to be processed, a heating device 3 that heats the inside of the drying device 2, an input device 4 that inputs an object to be processed into the drying device 2, and a drying device 2. The liquefying device 5 for liquefying the water vapor generated inside, the cooling water supply device 6 for supplying cooling water to the liquefying device 5, and the control device 7 for controlling the driving of each device 2-6. ing.

  The specific structure of each of the devices 2 to 7 will be described. The drying device 2 has a horizontally long processing container 9 mounted on the base 8 as shown in FIGS. 9 is provided with a stirring device 10.

  As shown in FIGS. 1 to 4, the processing container 9 has a cylindrical outer peripheral wall 14 attached between a pair of front and rear disk-shaped side walls 12, 13 having a flange 11 formed at the center, and the outer peripheral wall 14. A cylindrical inner peripheral wall 15 is attached to the inside of the inner peripheral wall 15 to form a drying processing space 16 for drying an object to be processed inside the inner peripheral wall 15, and a drying processing space is provided between the outer peripheral wall 14 and the inner peripheral wall 15. A water vapor channel 17 through which water vapor for heating 16 flows is formed. The water vapor channel 17 is divided into seven sections in the front and rear directions by a partition wall 18 formed on the outer peripheral surface of the inner peripheral wall 15.

  In addition, the processing vessel 9 has flanges 19, 20, 21 communicating with the drying processing space 16 at the upper part thereof with a space in the front and rear, and an inflow communicating with the water vapor channel 17 divided into seven sections on the left and right sides. A flange 22 and an outflow flange 23 are attached. Of these flanges 19 to 23, the opening / closing lid mechanism 24 of the charging device 4 is attached to the flange 19, the liquefying device 5 is attached to the flange 20, the observation window 25 is formed in the flange 21, and the inflow flange The heating device 3 is connected in communication with 22 and the outflow flange 23.

  Further, the processing container 9 is formed with a discharge flange 26 for discharging the object to be processed under the front side wall 12, and an opening / closing lid mechanism 27 is attached to the discharge flange 26.

  As shown in FIGS. 1 to 4, the stirring device 10 has a hollow rotating shaft 28 rotatably attached to the central portion of the processing container 9, and communicates with the heating device 3 at the front end of the rotating shaft 28. An inflow port 29 is formed, and a hollow stirring blade 30 to 39 is attached to the middle part of the rotation shaft 28 in a state where it is connected in communication with the hollow portion of the rotation shaft 28. An outlet 40 that leads to the heating device 3 is formed at the end. The tip of the 1,2,4,6,8th stirring blades 30, 31, 33, 35, 37 from the front side has a parallelogram shape in the cross section, and the 3, 5, 7, 9, 10th stirring from the front side. The tips of the blades 32, 34, 36, 38, and 39 have a triangular cross section, and the workpiece is discharged from the discharge flange 26 to the outside by the stirring blades 30 to 39 only when the rotating shaft 28 is rotated to the right. To be.

  The agitator 10 also has a drive motor 41 mounted on the base 8 and a drive sprocket 43 attached to the drive shaft 42 of the drive motor 41, while a driven sprocket 44 attached to the rear end of the rotary shaft 28. A transmission chain 45 is wound between the drive sprocket 43 and the driven sprocket 44.

  Next, the heating device 3 will be described. As shown in FIG. 6, the heating device 3 supplies the water vapor generated by the boiler 46 to the water vapor channel 17 of the processing vessel 9 through the inflow flange 22. The drying processing space 16 inside the container 9 is heated from the outside.

  The heating device 3 also supplies the water vapor generated by the boiler 46 to the hollow portion of the rotating shaft 28 and the stirring blades 30 to 39 through the inlet 29, thereby allowing the drying processing space 16 inside the processing vessel 9 to flow. Heating is done from the inside.

  Next, the charging device 4 will be described. As shown in FIG. 6, the charging device 4 attaches a charging hopper 48 for storing an object to be processed to the charging portion of the spiral conveyor 47 and discharges it to the discharging portion of the spiral conveyor 47. An outlet 49 is formed, and an opening / closing lid mechanism 24 attached to the processing container 9 is disposed immediately below the outlet 49.

  Next, the liquefying device 5 will be described. As shown in FIGS. 1 to 3 and 5, the liquefying device 5 attaches the dust separation device 50 to the upper part of the flange 20 provided in the processing container 9. 8, an upright cylindrical cooling device 51 is attached to a side position of the upper processing vessel 9, and a communication pipe 52 is installed between the dust separation device 50 and the upper portion of the cooling device 51. A filter device 53 is installed.

  In addition, the liquefying device 5 has a vacuum pump 55 attached to the cooling device 51 via a separation tank 54, and the inside of the processing vessel 9 is depressurized by this vacuum pump 55, and the processing object 9 is dried inside the processing vessel 9 The water vapor generated therein is sucked, and the water vapor is cooled by the cooling device 51 to be liquefied.

  The dust separation device 50 is formed by connecting a cylindrical upper case 57 to an upper part of a hollow lower case 56 whose diameter is increased upward, and a series of a lower inner wall of the lower case 56 and a lower inner wall of the upper case 57. A spiral wing body 58 is formed.

  The dust separator 50 causes the water vapor generated inside the processing vessel 9 to flow along the spiral wing body 58, separates the dust contained in the water vapor by centrifugal force, and cools the water vapor downstream. On the other hand, dust is dropped into the processing container 9.

  The filter device 53 has a filter housing case 61 formed between the inlet flange 59 and the outlet flange 60 so that the filter 62 can be detachably received from the upper opening of the filter housing case 61. Yes.

  In addition, the cooling device 51 has a cylindrical main body 65 attached between the cylindrical upper lid 63 and the lower lid 64, and a plurality of pipes 66 for flowing water vapor inside the main body 65. The inlet flange 67 is formed in the lower part of the main body 65, the outlet flange 68 is formed in the upper part of the main body 65, and the cooling water flowing in from the inlet flange 67 runs along the pipe 66 inside the main body 65. And flows out from the outlet flange 68.

  Thereby, the cooling device 51 cools the water vapor flowing through the pipe 66 with the cooling water and liquefies it.

  Next, the cooling water supply device 6 will be described. The cooling water supply device 6 includes a cooling tower 69 and a circulation pump between the inlet flange 67 and the outlet flange 68 of the cooling device 51 as shown in FIG. 70, and the circulation pump 70 supplies cooling water to the cooling device 51 while circulating the cooling water.

  Here, in the drying processor 1, as shown in FIG. 6, water obtained by liquefying water vapor by the cooling device 51 is supplied to the cooling tower 69 of the cooling water supply device 6 by the vacuum pump 55.

  Thus, in the drying processor 1 having the above-described configuration, the liquefying device 5 is configured so that water liquefied from water vapor is reused as cooling water for the cooling water supply device 6.

  Therefore, the drying processor 1 can effectively reuse the water vapor generated by the drying process in the drying device 2 as cooling water, and can reduce the amount of water required for the drying process. Costs required for processing can be reduced.

  In particular, in the drying processor 1 having the above-described configuration, the dust separator 50 that separates the dust contained in the water vapor and drops it into the processing container 9 is provided immediately above the processing container 9 of the drying device 2. In addition, it is possible to prevent dust from being contained in water that is liquefied water vapor and reused as cooling water, and it is possible to prevent failure of the cooling water supply device 6 and reduction of the heat exchange rate. .

  Moreover, in the drying processor 1 configured as described above, the upper part of the cooling device 51 for cooling the water vapor and the dust separation device 50 are connected to each other by the communication pipe 52, and the filter 62 is replaced in the middle of the communication pipe 52. Since the filter 62 is arranged freely, the filter 62 is located downstream of the dust separation device 50, so that the frequency of replacement of the filter 62 can be reduced, and the filter 62 is arranged at the top of the drying processor 1. Therefore, the replacement work of the filter 62 can be facilitated.

  Next, the base 8 will be described. As shown in FIG. 1, a weight detection device (load cell) 73 is interposed between a pair of upper and lower substrates 71 and 72 having a rectangular plate shape. In this weight detection device 73, the weight of the object to be processed inside the processing container 9 is detected on the basis of the state where the object to be processed does not exist inside the processing container 9.

  Next, the control device 7 will be described. As shown in FIG. 7, the control device 7 includes an opening / closing lid mechanism 27 and a drive motor 41 of the drying device 2, a boiler 46 of the heating device 3, and an opening / closing device 4. The lid mechanism 24 and the spiral conveyor 47, the vacuum pump 55 of the liquefaction device 5, the circulation pump 70 of the cooling water supply device 6, and the weight detection device 73 of the base 8 are connected.

  Then, the control device 7 performs batch processing (see FIG. 8) for individually performing the drying process on the processing object, and continuous processing (see FIGS. 9 and 10) for continuously drying the processing object. )) Is selectively performed.

  In batch processing, the control device 7 first closes the open / close lid mechanisms 24 and 27 and drives the boiler 46 to heat the inside of the processing container 9 to a predetermined temperature.

  Next, the control device 7 opens the open / close lid mechanism 24, drives the spiral conveyor 47 to newly insert an object to be processed into the processing container 9, and then closes the open / close lid mechanism 24.

  Next, the control device 7 drives the drive motor 41 to dry the object to be processed while stirring, drives the vacuum pump 55 to depressurize the interior of the processing vessel 9, and drives the circulation pump 70 to liquefy the device. The water vapor is liquefied at 5, and the liquefied water is supplied from the vacuum pump 55 to the cooling tower 69.

  Next, as shown in FIG. 8, the control device 7 drives the vacuum pump 55 and the circulation pump 70 when the weight detected by the weight detection device 73 is reduced to a predetermined constant weight. Is stopped, the open / close lid mechanism 27 is opened, and the drive motor 41 is rotated in the reverse direction to discharge the object to be processed to the outside of the processing container 9.

  Then, when performing the drying process of a to-be-processed object, the above-mentioned batch process is performed repeatedly.

  On the other hand, in the continuous processing, the control device 7 first closes the open / close lid mechanisms 24 and 27 and drives the boiler 46 to heat the inside of the processing container 9 to a predetermined temperature.

  Next, the control device 7 opens the open / close lid mechanism 24, drives the spiral conveyor 47 to newly insert an object to be processed into the processing container 9, and then closes the open / close lid mechanism 24.

  Next, the control device 7 drives the drive motor 41 to dry the object to be processed while stirring, drives the vacuum pump 55 to depressurize the interior of the processing vessel 9, and drives the circulation pump 70 to liquefy the device. The water vapor is liquefied at 5, and the liquefied water is supplied from the vacuum pump 55 to the cooling tower 69.

  Next, as shown in FIG. 9, the control device 7 opens the open / close lid mechanism 24 when the weight of the object to be processed is reduced to a predetermined weight set by the weight detection device 73, The spiral conveyor 47 is driven to recharge the object to be processed into the processing container 9, and then the opening / closing lid mechanism 24 is closed.

  Thereafter, the control device 7 repeatedly performs the above process a plurality of times, and finally stops driving the vacuum pump 55 and the circulation pump 70, opens the open / close lid mechanism 27, and reversely rotates the drive motor 41. As a result, the object to be processed is discharged outside the processing container 9.

  As described above, in the continuous processing, when the weight detected by the weight detection device 73 is smaller than a predetermined weight set in advance, the control device 7 loads the workpiece from the loading device 4 to the drying device 2. Thus, the charging device 4 is intermittently controlled.

  Therefore, the drying processor 1 can automatically and continuously dry the object to be processed, and can reduce labor and time required for the drying process of the object to be processed.

  In addition, when continuous processing is performed, the processing object dried by the previous drying process remains, so the time required for the weight of the processing object to reach a predetermined weight gradually increases. There is a possibility that the processing time required for continuously drying the object to be processed increases.

  Therefore, as shown in FIG. 10, the control device 7 measures the time until the weight detected by the weight detection device 73 reaches a predetermined weight set in advance, and this time is longer than the predetermined time set in advance. In the case of being long, the drying apparatus 2 is controlled so that the object to be processed is discharged from the drying apparatus 2 even before the drying process is continuously performed a predetermined number of times.

  Thereby, in the drying processor 1, the increase in the processing time at the time of performing a drying process continuously can be prevented beforehand.

The front view which shows the drying processing machine which concerns on this invention. FIG. The same side view. Sectional drawing which shows a drying apparatus. Sectional drawing which shows a liquefying apparatus. The block diagram which shows a drying processing machine. The block diagram which shows a control apparatus. Explanatory drawing of the batch process of a drying processor. Explanatory drawing of the continuous process of a drying processor. Explanatory drawing of the continuous process of a drying processor.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drying processor 2 Drying apparatus 3 Heating apparatus 4 Input apparatus 5 Liquefaction apparatus 6 Cooling water supply apparatus 7 Control apparatus 8 Base 9 Processing container 10 Stirring apparatus
11 Flange 12,13 Side wall
14 Outer wall 15 Inner wall
16 Drying treatment space 17 Water vapor flow path
18 Partition wall 19, 20, 21 Flange
22 Inflow flange 23 Outflow flange
24 Opening / closing lid mechanism 25 Observation window
26 Ejection flange 27 Opening / closing lid mechanism
28 Rotating shaft 29 Inlet
30-39 Stirring blade 40 Outlet
41 Drive motor 42 Drive shaft
43 Drive sprocket 44 Driven sprocket
45 Transmission chain 46 Boiler
47 Spiral conveyor 48 Input hopper
49 Outlet 50 Dust separator
51 Cooling device 52 Communication pipe
53 Filter device 54 Separation tank
55 Vacuum pump 56 Lower case
57 Upper case 58 Wings
59 Inlet flange 60 Outlet flange
61 Filter case 62 Filter
63 Upper lid 64 Lower lid
65 Body 66 Pipe
67 Inlet flange 68 Outlet flange
69 Cooling tower 70 Circulation pump
71,72 Substrate 73 Weight detector

Claims (2)

A drying device in which a stirring blade is provided inside the processing container to dry the workpiece while stirring, a heating device for heating the inside of the drying device, and a charging device for feeding the workpiece into the drying device. Having a drying processor,
A control device that controls the drying device, the heating device, and the charging device; and a weight detection device that detects the weight of an object to be processed inside the drying device;
When the weight detected by the weight detection device is smaller than a predetermined weight set in advance, the control device interrupts the charging device so as to load a workpiece from the charging device to the drying device. A drying processor characterized by being controlled.   The control device measures the time until the weight detected by the weight detection device reaches a predetermined weight set in advance, and when this time is longer than the predetermined time set in advance, The drying processor according to claim 1, wherein the drying device is controlled so as to discharge gas.