JPWO2004101185A1 - Waste bread processing method and processing apparatus - Google Patents

Abstract

[PROBLEMS] To provide a method and an apparatus capable of efficiently crushing and drying fine powder particles having a low water content so that discarded bread can be used as a livestock blended feed. A waste pan A is supplied into a primary drying passage 1 having a rotary crushing blade 2b and a hot-air injection nozzle 3a having a jet outlet directed in a delivery direction inside, and the front end surface of the rotary crushing blade 2b and the primary drying passage. The waste pan A is crushed so as to be crushed by the inner bottom surface of 1, and the water in the waste pan A is evaporated and removed by the heated primary drying passage 1 and hot air from the spray nozzle 3a. Further, the rotary blade 20 Then, it is supplied into the secondary drying passage 4 through the mesh body 7 a while being finely pulverized, and further dried in the secondary drying passage 4.

Description

  In addition to bread due to production loss generated in the production process, the present invention pulverizes and dries bread that is left unsold at a store and discarded, or bread that is generated during cooking or left over, etc. The present invention relates to a processing method and a processing apparatus for waste bread, which is a granular material that can be used for feed for food.

  In recent years, the amount of food waste discharged from companies has been increasing with the development of the restaurant industry. In order to protect the global environment by regulating the increase in food waste, the Food Recycling Law has been in effect since May 2001. Is enforced and it is obliged to raise the recycling rate to at least 20%.

  The consumption of bread has been increasing year by year due to changes in the Japanese diet. Along with this, in addition to the uneaten bread crumbs provided by the restaurant industry, it has been discarded due to unsold goods at convenience stores. The amount of crumb waste generated when producing products using bread such as baked bread and sandwiches has been increasing year by year, and disposal of these baked bread and crumbs has become a problem.

  Therefore, a system has been proposed that grinds raw garbage before and after cooking from households into feed or fertilizer in the form of sludge. According to this system, the raw garbage is crushed into viscous sludge and agglomerated in this sludge. There has been proposed a system for recycling garbage that is added to a high pressure filter press by a high pressure pumping device after adding the agent to form a finely ground viscous feed (for example, see Patent Document 1).

: JP-A-2001-352959 (Claims)

  However, in the above system, even though waste bread and bread crumbs can be processed together with other raw garbage from the home, it is not possible to process a large amount of waste bread and bread crumbs alone. The process is also cumbersome, and it is impossible to effectively dispose of waste bread and bread crumbs (hereinafter referred to as waste bread) that are discharged in large quantities as described above, and a method of effectively disposing of waste bread Was desired.

  The present invention has been made in view of such problems, and its purpose is to efficiently grind and dry waste bread discharged from convenience stores, food manufacturing plants, etc. It is in providing the processing method and processing apparatus of a waste bread which can process bread into a powdery body so that it can be mixed and used.

  The waste bread processing method according to claim 1, wherein the waste bread is supplied into the primary drying passage and finely crushed by the crushing means provided in the primary drying passage, and the water content of the crushed bread granule is obtained. After the rate is lowered, the moisture content of the crushed bread powder is further reduced by supplying it into the secondary drying passage.

  And the disposal method of the waste bread of Claim 2 is a processing method of the waste bread of Claim 1, and the granule of the bread | pan discharged | emitted from the exit of the primary drying channel | path continues in a secondary drying channel | path. It is characterized by further secondary crushing in the middle of being sent.

  An apparatus for carrying out the method for processing a waste pan as described in claim 3 is a horizontal cylindrical primary drying comprising a waste pan charging hopper and provided with a crushing means and a hot air jet means inside. It comprises a passage and a horizontal cylindrical secondary drying passage that receives the bread granule carried out from the outlet of the primary drying passage and performs secondary drying.

  In this waste pan processing apparatus, the invention according to claim 4 relates to a preferable structure of the crushing means of the waste pan provided in the primary drying passage, and a rotary shaft provided rotatably in the primary drying passage. A crushing blade is projected from the outer periphery of the crushing blade in the longitudinal direction, and the waste pan is pulverized finely by the crushing blade.

  Furthermore, the invention according to claim 5 is the waste pan processing apparatus according to claim 3 or 4, wherein the rotary shaft is formed in a hollow shape, and the crushed pan is formed on the outer peripheral surface of the hollow rotary shaft. The nozzles projecting the outlet in the feed direction of the powder particles are projected at intervals in the length direction, these nozzles are communicated with the hollow rotary shaft, and the hollow The hot air injection means is configured by communicating the rotating shaft with a hot air supply pipe disposed outside the primary drying passage.

  According to a sixth aspect of the present invention, there is provided the waste bread processing apparatus according to any one of the third to fifth aspects, wherein the waste pan is disposed on the transport start end side of the waste pan in the primary drying passage. A shielding plate that primarily closes the passage is disposed so as to be openable and closable, and a passage between the shielding plate and the charging hopper is formed in a retention chamber for a waste pan supplied from the charging hopper. It is characterized in that the staying waste pan is crushed by a crushing blade protruding from one end of the hollow rotation shaft in the room.

  And the waste bread processing apparatus of Claim 7 WHEREIN: The waste bread processing apparatus of any one of Claim 3 thru | or 6 WHEREIN: The exit of a primary drying channel | path, the entrance of a secondary drying channel | path, Are communicated by a cylindrical vertical passage, and a net-like body is provided in which a plurality of small holes of a predetermined size are provided in the vertical passage to allow a bread granule of a predetermined size to pass through. In addition, a rotating blade is provided on the upper surface of the mesh body to finely pulverize the bread granule carried into the vertical passage from the primary drying passage side into a powder having a predetermined diameter or less.

  Finally, the waste pan processing apparatus according to claim 8 is the waste pan processing apparatus according to any one of claims 3 to 7, wherein a hollow rotary shaft is provided at a central portion in the secondary drying passage. And is configured to heat the inside of the secondary drying passage by sending hot air from the outside of the secondary drying passage through the hot air supply pipe into the hollow rotation shaft, and on the outer peripheral surface of the hollow rotation shaft. A plurality of agitation transport plates for sending the waste pan powder particles toward the outlet side of the secondary drying passage protrude from the lengthwise direction.

  Since it comprised as mentioned above, when a waste pan is thrown in in the one end part of a primary drying channel | path through a charging hopper, a waste pan consists of many crushing blades protrudingly provided in the hollow rotating shaft provided in the primary drying channel | path. It is finely crushed by the crushing means and heated in the primary drying passage and the water contained in the waste pan becomes water vapor, and is discharged out of the primary drying passage together with part of the heated air. When the waste pan is crushed by the crushing blade, the waste pan is extremely lightweight. Therefore, even if the crushing blade is crushed and divided by the rotational force of the crushing blade, the waste pan may rotate and crush with the crushing blade. It becomes difficult. For this reason, the crushing blade is provided with a blade-like portion to cut the pan, and the waste pan is crushed and crushed by the front end surface of the crushing blade and the inner surface of the primary drying passage.

  Furthermore, if the storage capacity of the waste pan in the primary drying passage, that is, the storage density in the space in the passage is small, the waste pan is hardly crushed, so one end side in the primary drying passage, ie, the waste pan. A shielding plate that temporarily closes the passage is provided on the transport start end side, and by closing this shielding plate, the inside of the passage between the shielding plate and the charging hopper is discarded from the charging hopper. A crushing process for a large waste pan by stirring and rotating the crushing blade while a large amount of waste pan is once filled in the dwelling chamber and the tip of the crushing blade is formed The crushing process by the surface and the bottom of the passage is repeated.

  After the crushing process of the waste pan in the staying chamber is performed for a predetermined time, when the shielding plate is opened, the bread piece and the large and small powder particles of the processed waste pan are transported in the primary drying passage 1 toward the other end. Is done. On the outer peripheral surface of the hollow rotating shaft, there are provided injection nozzles that project the outlets in the direction of delivery of the crushed bread pieces and powder particles at appropriate intervals in the length direction. Light-weight bread pieces and powders already crushed to some extent by blowing hot air are conveyed so as to be blown off toward the other end discharge port in the primary drying passage. Furthermore, by forming a surface facing the discharge port side of the primary drying passage in the crushing blade on the conveying inclined surface, the bread inclined pieces and powder particles of the waste pan are rotated according to the rotation of the crushing blade. Can be transported toward the discharge port side of the primary drying passage, and even during the transportation, the pan is cut by the blade-shaped portion of the crushing blade and the waste pan is separated by the front end surface of the crushing blade and the bottom surface of the passage. A crushing process is performed.

  In addition, the bread pieces and powders of the waste bread are heated by the heated air in the primary drying passage, and the moisture contained in the waste pans into the primary drying passage to reduce the moisture content. In addition, the hot air blown from the spray nozzle further heats the bread pieces and powders of the waste bread, and the hot air circulates through the fine gaps between the porous bread pieces and powders. The bread pieces and powders are also heated from the inside, so that the contained water can be removed more effectively and can be efficiently dried to a predetermined moisture content in a short time.

  In this way, the bread pieces and powders that have been crushed in the primary drying passage and reduced in water content are fed from the other end discharge port of the primary drying passage into the other end of the secondary drying passage through the vertical passage. At this time, a mesh body provided with a large number of small holes of a predetermined size for allowing a bread granule of a predetermined size to pass through the vertical passage is stretched, and the primary drying passage side is provided on the upper surface of the mesh body. From the primary drying passage side, all the bread pieces and granules fed into the vertical passage are provided by providing a rotary blade for further finely pulverizing the bread granule carried into the vertical passage. Then, it is made into a granular material having a uniform diameter suitable for mixing with other blends as feed, and is put into the other end of the secondary drying passage.

  A hollow rotary shaft is also provided in the secondary drying passage in the same manner as the primary drying passage, and the waste pan powder particles are placed on the outer peripheral surface of the hollow rotary shaft toward the outlet side of the secondary drying passage. Since a plurality of agitating and conveying plates to be sent out are provided at appropriate intervals in the length direction, the powder particles of the waste pan put into the secondary drying passage are brought to a predetermined conveying speed by this agitating and conveying plate. It can be transported toward the outlet side, and the powder of the waste pan is stored by the heating wall surface of the secondary drying passage heated by the heater in the meantime or the heated air in the secondary drying passage, preservative additives, etc. Even if it does not add, it can dry-process so that it may become a granular material of the low moisture content which can be preserve | saved for a long time until it mix | blends as a feed. In addition, the heating in the secondary drying passage can also prevent the waste pan powder particles from adhering to the passage wall surface.

  As described above, according to the disposal method of the waste pan of the present invention, as described in claim 1, the waste pan is supplied into the primary drying passage and finely crushed by the crushing means provided in the primary drying passage. The moisture content of the crushed bread powder is reduced and then supplied to the secondary drying passage to further reduce the moisture content of the crushed bread powder. Therefore, the waste pan supplied in the primary drying passage can be finely crushed by the crushing means and simultaneously heated in the primary drying passage to reduce the water content. In addition, the secondary drying can be performed from the primary drying passage. A large amount of waste bread can be efficiently crushed and dried in a short time while continuously passing through the passage.

  Furthermore, according to the invention which concerns on Claim 2, since the powdered bread | crumbs discharged | emitted from the exit of the said primary-drying channel | path are continuously sent in the secondary-drying channel | path, further secondary crushing is carried out. Bread pieces mixed with waste bread that has been roughly crushed in the passageway and relatively large-sized powder can be reliably broken into fine powder that can be blended for feed. It can be planned.

  Moreover, according to the waste bread processing apparatus of the present invention, as described in claim 3, the horizontal drying is performed in a horizontal cylindrical shape having a waste hopper charging hopper and a crushing means and a hot air injection means inside. Since it comprises a passage and a horizontal cylindrical secondary drying passage for receiving and drying the bread granule carried out from the outlet of the primary drying passage, a predetermined amount of waste bread from the charging hopper Can be easily fed into the primary drying passage, and the waste pan can be pulverized into powder by the crushing means while being effectively dried by hot air from the hot air jetting means in the primary drying passage, The resulting bread granule is further dried in the secondary drying passage, and a large amount of waste bread is heated and crushed in a short time to produce a bread powder with a low water content. Can be obtained.

  In the waste pan processing apparatus configured as described above, the invention according to claim 4 relates to a waste bread crushing means provided in the primary drying passage, and is provided rotatably in the primary drying passage. Since the crushing blade protrudes from the outer circumference of the rotating shaft with a distance in the length direction, the waste pan is crushed finely by the convex arc-shaped end surface of the crushing blade and the inner surface of the primary drying passage. However, although the lightweight waste pan cannot escape and crush by the rotational force of the crushing blade, it is sure to grind the waste pan with the convex arcuate end surface of the crushing blade and the inner surface of the primary drying passage. It can be crushed finely.

  Furthermore, according to the invention which concerns on Claim 5, the hot-air injection means provided in the said primary drying channel | path forms a rotating shaft hollowly, The powder particle | grains of the crushed bread | pan on the outer peripheral surface of this hollow rotating shaft Injecting nozzles that are directed toward the outlet in the body delivery direction are spaced apart in the longitudinal direction, and these injection nozzles are communicated with the hollow rotating shaft and the hollow rotating shaft is primarily dried. Because it is connected to a hot-air supply pipe arranged outside the passage, the light waste pan pieces and powder particles are moved toward the discharge port side of the primary drying passage by the hot-air wind sprayed from the jet nozzle outlet. In addition to being able to be smoothly conveyed while being blown away, the moisture contained therein can be evaporated while passing through the heated primary drying passage to reduce the moisture content. In addition, the hot air blown from the spray nozzle further heats the bread pieces and powders of the waste pan, and the hot air circulates through the fine gaps of the porous bread pieces and powders. These bread pieces and powders can also be heated from the inside and dried to a predetermined moisture content efficiently in a short time.

  According to a sixth aspect of the present invention, a shielding plate that primarily closes the passage is disposed in the primary drying passage so as to be openable and closable on the transport start end side of the waste pan. The passage between the inlets is formed in a stay chamber for a waste pan supplied from a feed hopper, and the stay waste pan is crushed by a crushing blade projecting at one end of a hollow rotating shaft in the stay chamber. Therefore, a large amount of the waste pan supplied from the charging hopper can be accumulated and filled in the retention chamber formed by closing the shielding plate. The amount of crushing processing of the waste pan by the arcuate end surface and the inner surface of the primary drying passage can be increased, and the waste pan is closely filled in the staying chamber, so that it is prevented from escaping in the rotation direction of the crushing blade. , For reliably separated by the rotational force of the crushing blade can be crushed, the crushing process can be further carried out efficiently.

  According to the seventh aspect of the present invention, the outlet of the primary drying passage and the entrance of the secondary drying passage are communicated by a cylindrical vertical passage, and bread crumbs of a predetermined size are placed in the vertical passage. A bread granule in which a reticulate body having a large number of small holes of a certain size passing therethrough is stretched and brought into the vertical passage from the primary drying passage side on the top surface of the reticulate body A rotating blade is provided to further finely pulverize the powder, so that all the bread pieces and powder particles fed into the vertical passages are surely turned into fine particles that can pass through the small holes of the mesh by the rotating blade. And can be supplied to the secondary drying passage as fine powder suitable for mixing with other formulations as feed.

  In this secondary drying passage, as described in claim 8, a hollow rotary shaft is disposed at the center thereof, and hot air is sent into the hollow rotary shaft from outside the secondary drying passage through a hot air supply pipe. A plurality of agitation transport plates configured to heat the inside of the secondary drying passage through the outer peripheral surface of the hollow rotary shaft toward the outlet side of the secondary drying passage. Are projected at regular intervals in the length direction, so that the fine powder particles introduced into the secondary drying passage from the vertical passage are moved to the outlet side at a predetermined transportation speed by the stirring transportation plate. And can further dry the fine powder particles by the heating wall surface of the secondary drying passage heated by the heater and the heated air in the secondary drying passage, Without adding any preservative additives Long-term storage low water content can be fine bread powdery grains to be formulated as feed can be efficiently produced.

[FIG. 1] FIG. 1 is a partially cutaway simplified side view of the entire apparatus.
FIG. 2 is a simplified perspective view of the entire apparatus.
[FIG. 3] FIG. 3 is a partially cutaway simplified perspective view of a staying chamber portion in a primary drying passage.
FIG. 4 is a partial perspective view showing the internal structure of the primary drying passage.
FIG. 5 is a front view of a crushing blade (A) having a straight blade portion and a crushing blade (B) having a sickle-like blade portion.
[FIG. 6] FIG. 6 is a longitudinal sectional side view of a part of the primary drying passage.
FIG. 7 is a longitudinal front view of the primary drying passage.
FIG. 8 is a partial perspective view showing the internal structure of the secondary drying passage.
FIG. 9 is a longitudinal front view of a secondary drying passage.
FIG. 10 is a longitudinal side view of the secondary drying passage.
[FIG. 11] FIG. 11 is a simplified perspective view of a bottomed cylindrical mesh body provided with a rotating cutter provided in a vertical passage portion.
[FIG. 12] FIG. 12 is a longitudinal front view of a bottomed cylindrical mesh body provided with a rotating cutter provided in a vertical passage portion.
[FIG. 13] FIG. 13 is a plan view of a bottomed cylindrical mesh-like body provided with a rotating cutter provided in a vertical passage portion.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Primary drying channel | path 2 Crushing means 2a Hollow rotating shaft 2b Crushing blade 2c Convex-arc shaped end surface 3 Hot air injection means 3a Hot air injection nozzle 3b Outlet 4 Secondary drying path 5 Tertiary drying path 6 Stirring conveyance means 61 Stirring conveyance board plate 7 Vertical Passage 7a Bottomed cylindrical mesh 7b Small hole 8a, 8b Hot air supply pipe 9 Discharge port 15 Shield plate 16 Retention chamber 20 Rotating blade

  Next, a specific embodiment of the waste bread processing apparatus of the present invention will be described with reference to the drawings. 1 and 2, the processing apparatus for the waste pan A is connected to and communicated with the lower end of the opening of the waste pan charging hopper 10 at the upper peripheral portion on one end side, and the waste pan crushing means 2 and the hot air jet means 3 are provided inside. Closed cylindrical primary drying passage 1 provided, and powder a of waste pan A carried out from the outlet provided at the other end of primary drying passage 1 in parallel below primary drying passage 1 A closed cylindrical secondary drying passage 4 that receives secondary through a vertical cylindrical passage 7 and performs secondary drying, and one end of the secondary drying passage 4 that is juxtaposed below the secondary drying passage 4. The dried dry granular material a of the waste pan A to be carried out is further dried and then cooled, and the sealed cylindrical tertiary drying passage 5 and the stirring and conveying means 6 provided in the secondary and tertiary drying passages 4 and 5 are provided. 6A and the supply of hot air into the primary to tertiary drying passages 1, 4, 5 And a pipe 8.

  The primary drying passage 1 is configured such that the opening portions at both ends of the horizontal passage portion 11 formed by bending a metal belt-like plate in a U-shaped section are completely closed by the closing plates 12a and 12b, and the upper end opening portion can be opened and closed. It is formed into a horizontal cylinder having a fixed length by being completely closed by a cover member 13, and the above-mentioned charging portion is formed on one upper end of the primary drying passage 1, that is, on one end of the cover member 13. A hopper 10 is disposed, and the lower end of the opening of the charging hopper is communicated with one end of the passage portion 11 of the primary drying passage 1, and the waste pan A introduced into the charging hopper 10 is disposed in the primary drying passage 1. It is configured to supply to. The hopper 10 is configured to have a lid in order to prevent small animals such as mice and insects from entering the apparatus when not in use, or a gate shutter is provided to be opened and closed. You can also keep it.

  As shown in FIGS. 3 and 4, the waste bread crushing means 2 provided in the primary drying passage 1 is disposed at the center of the passage portion 11, and both ends thereof are freely rotatable to the front and rear closing plates 12a and 12b. A plurality of crushing blades 2b projecting in a direction perpendicular to the axial direction on the outer peripheral surface of the hollow rotating shaft 2a supported by the outer surface of the hollow rotating shaft 2a at regular intervals along the length of the hollow rotating shaft 2a. It is.

  The arrangement state of the crushing blades 2b will be described in more detail. The crushing blades 2b are spaced apart in the length direction at three circumferential portions of the hollow rotary shaft 2a, that is, portions having a phase difference of 60 °. Preferably, the crushing blades 2b, 2b adjacent to each other are not provided on the same circumferential surface of the hollow rotary shaft 2a but are shifted on the virtual spiral line. ing.

  As shown in FIGS. 3 to 5, each crushing blade 2 b is fixed to the outer peripheral surface of the hollow rotary shaft 2 a integrally with the base end, and has a vertically long rectangular support plate 2 b 1 protruding from the outer peripheral surface; The cutter plate 2b2 is fixed to one surface of the support plate 2b1, and the blade portion 2b2 ′ formed on one edge of the cutter plate 2b2 is moved toward the rotation direction of the hollow rotary shaft 2a. 2b1 is protruded from one side end of the support plate 2b1 and the cutter plate 2b2 so that the protruding tip surfaces from the hollow rotary shaft 2a are opposed to the arcuate inner surface of the passage portion 11 with a slight gap. It is formed on the convex arcuate end surface 2c, and the waste pan A is crushed and finely pulverized by the convex arcuate end surface 2c and the arcuate inner surface of the passage portion 11.

  Further, as shown in FIG. 5 (a), the blade portion 2b2 ′ of the cutter plate 2b2 is formed as a straight blade projecting outward with a constant width from one side end of the support plate 2b1. As shown in FIG. 5 (b), there is a sickle-shaped blade portion 2b2 ″ in which the tip of the straight blade is further projected outward. A cutter plate 2b2 having a blade portion 2b2 '' is protruded from one end portion of the hollow rotary shaft 2a from the lower side of the input hopper 10 to the vicinity of a shielding plate 15 to be described later, and discarded from the input hopper 10 While the pan A is hooked and crushed and the waste pan A is prevented from staying on the inner bottom of the hopper 10, the cutter plate 2 b 2 provided with only a straight blade is the vicinity of the shielding plate 15. To the subsequent hollow rotary shaft 2a.

  Further, an inclined surface in which the surface of the support plate 2b1 of the crushing blade 2b facing the other end portion of the primary drying passage 1 is gently inclined from one end to the other end in the rotation direction of the hollow rotary shaft 2a. The slanted surface 2d is formed in 2d so that the granular material a of the waste pan A is sent out to the other end side of the primary drying passage 1, that is, the discharge port 9 side. At the end of the primary drying passage 1 on the charging hopper 10 side (the closing plate 12a side), high-pressure air is blown out and the remaining waste pan A powder is sent to the discharge port 9 to clean the inside of the passage. A cleaning blower can also be provided.

  On the other hand, the hot air jetting means 3 provided in the primary drying passage 1 is appropriately arranged in the length direction in three directions on the outer peripheral surface of the hollow rotary shaft 2a as shown in FIGS. 3, 4, 6, and 7. Short tube-shaped hot air injection nozzles 3a projecting from the outlet 3b at the other end side of the primary drying passage 1, that is, in the delivery direction of the granular material a of the waste pan A, are provided at intervals. 3a is communicated with the hollow rotary shaft 2a, and one end of the hollow rotary shaft 2a is connected to and communicated with the hot air supply pipe 8 disposed outside the primary drying passage. A discharge port in which hot air supplied into the shaft 2a is ejected from the injection nozzle 3a to dry the powder body a of the waste pan A, and the powder body a is provided on the other end side of the primary drying passage 1 by the wind pressure. To force it to 9 It is. In order to inject hot air having wind pressure from all of these injection nozzles 3a, a certain amount of pressurization is required, and when the pressurization is insufficient with only the hot air supply pipe 8 from one closing plate 12a side. Can also be configured so as to be pressurized from both sides by providing a hot air supply pipe communicating with the inside of the hollow rotary shaft 2a also from the other closing plate 12b side. The ejection port 3b of the ejection nozzle 3a is formed by bending the tip of the ejection nozzle 3a at a substantially right angle toward the feeding direction of the granular material a of the waste pan A.

  Further, in the central part of the lid member 13 of the primary drying passage 1, as shown in FIGS. 1 and 2, water vapor evaporated from the inside of the granular material a by heating the granular material a of the waste pan A is supplied to the primary drying passage. A steam discharge pipe 14 for discharging together with a part of the hot air is connected and communicated to the outside. The water vapor discharge pipe 14 is provided with an on-off valve (not shown) for adjusting the discharge amount.

  Further, as shown in FIGS. 1 to 3, the one end side passage portion of the primary drying passage 1 is arranged on the other end side on the side of the charging hopper 10 in the primary drying passage 1, that is, on the conveyance start end side of the waste pan A. A shielding plate 15 that is primarily closed is disposed, and when the passage is blocked by the shielding plate 15, the inside of the passage portion between the shielding plate 15 and one end closing plate 12 a of the primary drying passage 1 is inserted into the feeding hopper 10. It forms so that it may form in the retention chamber 16 of the waste pan A supplied from.

  Specifically, as shown in FIG. 3, the shielding plate 15 has an outer peripheral end surface 15a of the lower half formed in the same shape as the inner peripheral surface of the primary drying passage 1, and at the center in the width direction at the lower end. A notch 15b is formed by cutting out a portion of a certain length from the lower end surface. When the shielding plate 15 is closed, the hollow rotary shaft 2a is inserted into the notch 15b and the lower half outer peripheral end surface 15a is received. Is formed in close contact with the inner peripheral surface of the primary drying passage 1.

  The upper half of the shielding plate 15 protrudes upward through a through hole 17 provided in the lid member 13 of the primary drying passage 1, and stands on the upper end portion and the lid member 13 of the primary drying passage 1. The piston rod 18a of the fixed cylinder 18 is integrally connected by a connecting member 19, and the piston rod 18a is expanded and contracted to open and close the shielding plate 15. FIG. 3 shows an example of a shielding device using an electric cylinder, but it is preferable to use an air cylinder because it can be further downsized.

  The secondary drying passage 4 arranged in parallel below the primary drying passage 1 thus configured is a horizontal passage formed by bending a metal strip in a U-shaped cross section, like the primary drying passage 1. Each of the opening portions at both ends of the portion 41 is completely closed by the closing plates 42a and 42b, and the upper end opening portion is fully closed by the openable / closable lid member 43, thereby forming a horizontal cylinder like the primary drying passage 1. A hollow rotary shaft 44 is formed over the entire length of the secondary drying passage 4 so that both ends thereof are rotatably supported by the center portions of the both end closing plates 42a and 42b. The stirring and conveying means 6 are integrally provided at a plurality of locations on the outer peripheral surface of the hollow rotary shaft 44.

  As shown in FIGS. 8 to 10, the agitating / conveying means 6 is integrally formed with legs 62 and 63 having a predetermined length at both ends of a horizontally-long rectangular agitating / conveying plate 61 that is long in the length direction of the hollow rotating shaft 44. A leg 62 on one end side, that is, a leg 63 on the other end side, that is, a leg on the side of the vertical passage 7 with respect to the leg 62 on the conveyance direction side of the powder body a of the waste pan A The surface of the stirring and conveying plate 61 is fixed to the hollow rotary shaft 44 by fixing the legs 63 and 63 to the outer peripheral surface of the hollow rotary shaft 44 with the body 63 slightly shifted in the rotational direction of the hollow rotary shaft 44. Are formed on the conveyance inclined surface 64 that is gently inclined from the one end side to the other end side in the rotation direction of the plate, and the front end surface 65 of the agitation conveyance plate 61 is formed on the inner peripheral surface of the secondary drying passage 4. Is in sliding contact with or close to. Then, the agitating and conveying plate 61 is arranged at regular intervals in the length direction of the hollow rotating shaft 44 and the adjoining agitating and conveying plates 61 and 61 are not disposed on the same circumferential surface of the hollow rotating shaft 44, but the virtual spiral. It is provided so as to be shifted on the line.

  The other end of the hollow rotary shaft 44 is connected to and communicated with the hot air supply pipe 8, and the inside of the secondary drying passage 4 is heated by hot air supplied into the hollow rotary shaft 44 through the hot air supply pipe 8. And it is comprised so that the granular material a of the waste bread A may be dried.

  Furthermore, the other end of the lid member 43 of the secondary drying passage 4 is opposed to the lower side of the discharge port 9 provided at the other end of the primary drying passage as shown in FIGS. A granule receiving port 45 is provided, and between these discharge port 9 and the receiving port 45, the granular material a of the waste pan A is passed from the discharge port of the primary through passage 1 to the receiving port 45 of the secondary drying passage 4. The vertical passage 7 for carrying out is provided.

  In this vertical passage 7, as shown in FIGS. 11 to 13, a bottomed cylindrical mesh body 7a having an open upper end is disposed, and a large number of meshes of the mesh body 7a are arranged. The small hole 7b is formed in a hole having a constant diameter of 5 mm or less, and fine particles a smaller than that size are allowed to pass through and fall into the receiving port 45 of the secondary drying passage 4. The bottomed cylindrical mesh member 7a is suspended from the discharge port 9 or supported by the passage 7, and the discharge lower end of the discharge port 9 is the upper end opening of the mesh member 7a. To face.

  Furthermore, on the horizontal inner bottom surface of the bottomed cylindrical mesh body 7a, than the small holes 7b of the mesh body 7a in the granular material a of the waste pan A discharged from the discharge port 9 of the primary drying passage 1. A rotary blade 20 is provided for finely pulverizing the large-diameter granular material a into a diameter that can pass through the small hole 7b.

  The rotary blade 20 has a knife shape, and its base end is integrally fixed to the upper end of the rotary shaft 21 penetrating through the center of the bottom surface of the mesh body 7a. A plurality of sheets are provided so as to project radially from the rotating shaft 21 so that the tip reaches the vicinity of the outer peripheral edge of the inner bottom surface of the bottomed cylindrical mesh-like body 7a. Further, the cutting edge 20a of all the rotary blades 20 is directed in the rotation direction of the cutting blade portion 20a, and the lower surface is rotated in the plane direction with a slight gap with respect to the upper surface of the mesh body 7a. It is composed.

  The rotating shaft 21 has a proximal end of one scraping plate 22 fixed to a lower portion of the rotating blade 20 and protrudes horizontally from the rotating shaft 21 in the radial direction. The plate 22 is gradually inclined downward in the direction of rotation, and the downward inclined edge thereof is rotated with a gap narrower than the rotary blade 20 with respect to the inner bottom surface of the mesh member 7a. The large-diameter granular material a that cannot pass through the small hole 7b of the body 7a is scooped up from the inner bottom surface of the net-like body 7a, divided into the small-diameter granular material a by the rotary blade 20 that rotates at high speed, and passed through the small hole 7b. I am doing so. The motor 23 for rotating the rotary shaft 21 is installed outside the vertical passage 7 as shown in FIG. 1, and rotates the motor 23 via an appropriate rotation transmission mechanism such as a meshing gear mechanism. It is configured to transmit to the rotating shaft 21.

  On the other hand, the tertiary drying passage 5 arranged in parallel below the secondary drying passage 4 is formed in the same shape as the secondary drying passage 4. That is, the opening portions at both ends of the horizontal passage portion 51 formed by bending the metal belt-like plate into a U-shaped cross-section are completely closed by the closing plates 52a and 52b, and the upper end opening portion is freely opened and closed by the lid member 53. A hollow rotary shaft 54 is disposed over the entire length of the tertiary drying passage 5 so that both ends are rotatably supported by the central portions of the both end closing plates 52a and 52b. Agitating and conveying means 6A is integrally provided at a plurality of locations on the outer peripheral surface of the hollow rotary shaft 54.

  This agitating / conveying means 6A is also formed in the same shape as the agitating / conveying means 6 provided in the secondary drying passage 4, and is long in the length direction of the hollow rotary shaft 54 as shown in FIGS. Legs 62a and 63a having a fixed length are integrally provided at both ends of the horizontally long stirring and conveying plate 61a, and the legs 62a on the conveying direction side of the granular material a of the waste pan A are used as the other leg 63a. On the other hand, these legs 62a63a are fixed to the outer peripheral surface of the hollow rotating shaft 54 in a state slightly shifted in the direction opposite to the rotating direction of the hollow rotating shaft 54, so that the surface of the stirring and conveying plate 61a is rotated in a hollow state. It is formed on a conveyance inclined surface 64a that is gently inclined from one end side to the other end side in the rotation direction of the shaft 54. Further, the tip end surface 65a of the stirring conveyance plate 61a is formed on the inner periphery of the tertiary drying passage 5. It is in sliding contact with or close to the surface. The agitating and conveying plate 61a is disposed at regular intervals in the length direction of the hollow rotary shaft 54 and the adjacent agitating and conveying plates 61a and 61a are not disposed on the same circumferential surface of the hollow rotating shaft 54, but are virtual spirals. It is provided so as to be shifted on the line.

  Further, one end of the hollow rotary shaft 54 is connected to and communicated with one end of the hollow rotary shaft 44 in the secondary drying passage 4 through a communication pipe 8c, which will be described later. The inside of the tertiary drying passage 5 is heated by the hot air supplied into the hollow rotary shaft 54 through the shaft 44 to dry the granular material a of the waste pan A.

  Further, in the central portion of the lid members 43 and 53 of the secondary drying passage 4 and the tertiary drying passage 5 in the length direction, as in the case of the primary drying passage 1, powder particles of the waste pan A in each passage. Discharge pipes 46 and 56 for discharging water vapor evaporated from the body a to the outside are connected and communicated with each other, and an open / close valve (not shown) is interposed in the hot air discharge pipes 46 and 56.

  In the tertiary drying passage 5 from the secondary drying passage 4 between the conveyance end portion (one end portion) of the secondary drying passage 4 and one end portion of the lid member 53 of the tertiary drying passage 5 located below the conveyance termination portion. A vertical intermediate passage 7 ′ for feeding the granular material a is connected and communicated, and a moisture measuring device 30 inside the intermediate passage 7 ′ is attached to the intermediate passage 7 ′, and a tertiary drying passage 5 is provided with a discharge port 9 ′ for the processed granular material a that opens downward.

  In the primary drying passage 1 and the secondary drying passage 4, a heater (not shown) such as a silicon rubber heater is wound over the entire length of the cylindrical wall surface to be heated to a constant temperature. While the waste pan A is configured to dry, the tertiary drying passage 5 has one half thereof, that is, the outer periphery of the front half in which the granular material a introduced from the intermediate passage 7 'moves toward the other end. The heater is wound only on the part, and it is configured to heat so that the moisture content of the bread granule a is 8% or less, but the outer peripheral part of the other half is provided with a heater. In addition, the bread granule a is moved toward the discharge port 9 ′ in the cooled state on the inner bottom surface of the cylindrical wall surface of the tertiary drying passage 5, and the bread granule a is discharged from the discharge port 9 ′. When it is done, it is treated not to absorb moisture.

  Further, as the rotating means of the hollow rotary shafts 2a, 44, 54 disposed in the primary to tertiary drying passages 1, 4, 5, respectively, as shown in FIG. Motors 101, 102, and 103 are disposed on the conveyance end side of the motor, and the hollow rotating shafts 2a, 44, and 54 are rotated from these motors 101 to 103 at a constant rotational speed through an appropriate speed reduction mechanism. I am doing so.

  Furthermore, as the hot air supply pipe 8 for supplying hot air to the hollow rotary shafts 2a, 44, 54 of the primary to tertiary drying passages 1, 4, 5, the hollow rotation projecting from one end thereof on the primary drying passage 1 side. It consists of a hot air supply pipe 8a in which a heater H1 is connected to and connected to one end of the shaft 2a via a rotary joint, and on the secondary drying passage 2 side, a hollow rotating shaft 44 protruding from the other end is provided. It consists of a hot air supply pipe 8b in which a heater H2 is provided on a pipe connected and communicated via a rotary joint. On the side of the tertiary drying passage 5, as described above, the communication pipe 8 c connected to and communicated with one end of the hollow rotary shaft 44 in the secondary drying passage 4 is a hot air supply pipe for heating the inside of the tertiary drying passage 5. Become.

  These hot air supply pipes 8a and 8b are respectively provided with pressure reducing valves V1 and V2, and the pressure reducing valves V1 provided in the hot air supply pipe 8a connected to and communicated with the hollow rotary shaft 2a of the primary drying passage 2a are: It adjusts so that the hot air of a pressure higher than the pressure-reduction valve V2 provided in the hot air supply pipe 8b connected to the hollow rotating shaft 44 by the side of the secondary drying channel | path 4 can be passed. Further, as shown in FIG. 1, these hot air supply pipes 8a and 8b are connected to and communicated with a compressed air supply pipe 8 ′ from a compressor (not shown) to heat the compressed air. . In the apparatus shown in FIG. 1, hot air is supplied into the hollow rotary shafts 2a, 44, 54 of the primary to tertiary drying passages 1, 4, 5 by the hot air supply pipe 8, Next, a separate hot air supply pipe may be provided for the tertiary drying passage.

  The hollow rotary shaft 2a in the primary drying passage 1 is provided with a plurality of hot air jet nozzles 3a communicating with the hollow rotary shaft 2a so that the hot air supplied into the hollow rotary shaft 2a is primarily dried. Since it is configured to be injected into the passage 1, the other end of the hollow rotary shaft 2a is closed, or the flow rate can be adjusted by a throttle valve, an on-off valve, or the like. However, as described above, hot air is supplied from both ends of the hollow rotary shaft 2a into the hollow rotary shaft 2a, and is supplied from all the injection nozzles 3a protruding from the hollow rotary shaft 2a with a substantially uniform pressure. Thus, hot air may be jetted. The hot air flowing through these hollow rotary shafts 2a, 44, 54 may be discharged to the outside air, but may be configured to be recirculated to the hot air supply pipe 8 and reused. desirable.

  In order to process the powder pan a having the optimum diameter and low water content for mixing the waste pan as part of the feed by the processing device for the waste pan A configured as described above, first, the primary drying passage 1 and the secondary drying passage 1 The hollow rotary shafts 2a, 44, and 54 disposed inside the drying passage 4 and the tertiary drying passage 5 are rotated at a constant rotational speed, and the primary to tertiary drying passages 2a, 44, and 54 are arranged in their cylinders. It heats by the heater provided in the outer peripheral surface of the shape wall surface, and also heats from the inside by circulating hot air in the hollow rotary shafts 2a, 44, 54 through the hot air supply pipes 8 (8a, 8b).

  In this state, the waste pan A is continuously charged into the charging hopper 10 and supplied into one end of the primary drying passage 1 through the charging hopper 10. At this time, the shielding plate 15 provided on one end side of the primary drying passage 1 is lowered by the operation of the cylinder 18, and the cutout portion 15b is not provided with the crushing blade 2b or the hot air injection nozzle 3a in the hollow rotary shaft 2a. By inserting the lower half outer peripheral end surface 15a of the shielding plate 15 into close contact with the inner peripheral surface of the primary drying passage 1, the shielding plate 15 and one end side closing plate 12a of the primary drying passage Is formed in a staying chamber 16 that is blocked from the passage on the discharge port 9 side of the primary drying passage 1.

  Therefore, a large amount of the waste pan A fed from the feeding hopper 10 does not move to the discharge port 9 side in the primary drying passage 1 but fills the staying chamber 16 and projects into the outer peripheral surface of the hollow rotary shaft 2a. The waste pan A that is agitated by the rotation of the crushing blade 2b and is crushed and crushed, and the waste pan A that bites into the gap between the convex arc-shaped end surface 2c of the crushing blade 2b and the arc-shaped inner surface of the passage portion 11 is It is crushed finely by crushing.

  Further, the cutter plate 2B2 of the crushing blade 2b in the staying chamber 16 is formed into a sickle-shaped blade portion 2b2 ″ formed by projecting the tip portion of the straight blade outward. The thrown-out waste pan A is crushed while being hooked by the sickle-shaped blade portion 2b2 ″, and the waste pan A is prevented from staying on the inner bottom portion of the hopper 10. Further, the waste pan A that is densely filled in the staying chamber 16 resists the rotation of the crushing blade 2b. Therefore, the large waste pan A and the like are divided and crushed by the rotational force of the crushing blade 2b. The

  Moreover, the hot air supplied into the hollow rotary shaft 2a through the hot air supply pipe 8 flows out from the injection nozzle 3a into the primary drying passage 1 including the staying chamber 16, and is heated by the heater and air in the primary drying passage 1 Has changed to dry hot air. Therefore, in the staying chamber 16, a part of the water contained in the waste pan A is evaporated in the staying chamber 16, and the moisture content is lowered.

  Waste bread A usually has a moisture content of 35-40%, and if it is left as it is, the moisture content is high and it will rot before use as feed, so it is blended directly into the feed without using any additives. It is necessary to make the water content 8% or less in order to enable the storage until it is done. In addition, if the crushed pieces and the powders a of the waste bread A are large, or if the size or particle size varies, it is difficult to accurately set the blending ratio with other feed blends. Therefore, it is necessary to grind all the waste pans A to a fine particle size of 5 mm or less.

  The granular material a of the waste pan A that satisfies such conditions can be applied for a long time only by stirring, crushing processing by the crushing blade 2b in the staying chamber 16 and heating processing by supplying hot air from the spray nozzle 3a. It is difficult to obtain. Therefore, after the waste crush A is subjected to the primary crushing process until the waste bread A is mixed with the relatively small bread pieces and the large and small powder particles a in the staying chamber 16, the shielding plate 15 is opened. The shielding plate 15 may be lifted up to about 3 cm from the inner bottom surface of the retention chamber 16 without pulling up greatly, and the bread pieces crushed to a certain extent may be passed outside the retention chamber 16 from the gap.

  When the shielding plate 15 is opened, the crushed bread pieces and the granular material a are sent to the inclined surface 2d of the crushed blade 2b protruding from the outer peripheral surface of the hollow rotating shaft 2a, and the granular material is sent out. It is conveyed toward the discharge port 9 side of the primary drying passage 1 by hot air jetted from the jet outlet 3b of the jet nozzle 3a directed in the direction. In the course of this conveyance, the moisture contained in the bread pieces and the granular material a by the contact with the peripheral wall surface of the primary drying passage 1 heated by the heater and the high temperature air in the primary drying passage 1 is removed from the primary drying passage. 1 is discharged as water vapor, and is discharged out of the primary drying passage together with some high-temperature air (hot air) through the water vapor discharge pipe 14.

  In the primary drying passage 1, the bread pieces and the powder a are transported to the discharge port 9 side only by the transport action by the inclined surface 2d of the crushing blade 2b and the low-speed hot air always flowing out from the spray nozzle 3a. Insufficient and cannot be carried out smoothly. Therefore, high-pressure heated air (hot air) is pumped into the hollow rotary shaft 2a through the hot air supply pipe 8 every fixed time, for example, every 10 seconds, and instantaneously from the outlet 3b of the injection nozzle 3a directed to the outlet 9 side. The conveying speed is adjusted by blowing off the bread pieces and the granular material a toward the discharge port 9 by the high-speed hot air flow.

  Furthermore, since the bread pieces and the granular material a are porous, this hot air discharged from the outlet 3b of the injection nozzle 3a circulates through the fine voids in the bread pieces and the granular material and is also heated from the inside. In addition, the action of removing contained moisture is more effectively performed. Further, the waste pan A that bites between these surfaces is crushed finely by the convex arcuate end surface 2c of the rotating crushing blade 2b and the arcuate inner surface of the passage portion 11 of the primary drying passage 1.

  Thus, the bread pieces and the granular material a that have been appropriately dried and crushed fall into the vertical passage 7 through the discharge port 9 when reaching the other end of the primary drying passage 1. In the vertical passage 7, a bottomed cylindrical mesh body 7a is disposed, and a plurality of rotary blades 20 projecting radially from the rotary shaft 21 are provided on the inner bottom surface of the mesh body 7a. ing. Therefore, in the bread pieces and the granular material a that have fallen on the mesh body 7a, the fine powder particles a having a smaller diameter than the large number of small holes 7b made of the mesh of the mesh body 7a remain as they are. While passing through the small hole 7b and falling to the receiving port 45 side of the secondary drying passage 4, the bread pieces and the granular material a larger in diameter than the small hole 7b are finely divided by the rotary blade 20 that rotates at high speed. .

  At this time, the one scraping plate 22 protruding from the rotating shaft 21 rotates so that the downwardly inclined edge of the rotating direction side is in contact with the inner bottom surface of the mesh body 7a. The cutting edge of the rotary blade 20 that rakes up the bread pieces and coarse particles a that cannot pass through the small holes 7b to prevent clogging and rotates the bread pieces and coarse particles a that have been scraped up at a high speed. 20a, and this cutting action is repeated until it becomes a small-diameter granular material a that can pass through the small holes 7b of the mesh body 7a, and all pieces of bread and powder of waste bread A that fall into the mesh body 7a The granule a is pulverized into fine particulate powder a. It should be noted that the processing amount per unit time of the waste pieces A and the granular material a passing through the mesh body 7a and the input amount of the waste pan A to be input into the input hopper 10 are made substantially equal to each other and primary drying is performed. It is configured so that the granular material a is processed while being continuously conveyed from the passage 1 to the secondary drying passage 4 and the tertiary drying passage 5.

  Thus, when the pulverized fine particulate small-diameter granular material a is discharged into the other end of the secondary drying passage 4 through the receiving port 45, the secondary drying passage 4 has a lengthwise direction. A hollow rotary shaft 44 provided with a stirring and conveying plate 61 that constitutes the stirring and conveying means 6 is disposed at appropriate intervals, and the tip surface 65 of these agitating and conveying plates 61 is connected to the wall surface of the secondary drying passage 4. Since the inner peripheral surface is in sliding contact with or close to the inner peripheral surface, the powder a is stirred in the circumferential direction of the secondary drying passage 4 by the rotation of the stirring and conveying plate 61 and heated by the heater. Evenly contacting the wall surface, the moisture contained inside is further evaporated and removed, and the moisture content decreases.

  Further, hot air is circulated through the hot air supply pipe 8b in the hollow rotary shaft 44. The hot rotary air heats the hollow rotary shaft 44 and the stirring and conveying plate 61 and also heats the air in the secondary drying passage 4. Therefore, the action of removing moisture in the granular material a is further promoted. In addition, the stirring and conveying plate 61 is formed in a horizontally long rectangular shape that is long in the length direction of the hollow rotary shaft 44, and the granular material conveying surface is moved from one end side to the other end side in the rotational direction of the hollow rotary shaft 44. Is formed on the conveyance inclined surface 64 which is gently inclined toward the surface, so that the granular material a conveyed by the conveyance inclined surface 64 to the outlet side of the secondary drying passage 4 according to the rotation of the agitation conveyance plate 61 is conveyed. The speed is low, and therefore, the drying process time in the secondary drying passage 4 is increased, and the granular material a is effectively dried.

  In this way, when the granular material a is conveyed while being dried in the secondary drying passage 4 and reaches the conveying terminal end of the secondary drying passage 4, the lower portion of the secondary drying passage 4 passes through the vertical intermediate passage 7 ′. It falls into one end part of the tertiary drying passage 5 arranged in the. At this time, the moisture measuring device 30 attached to the intermediate passage 7 ′ detects the moisture content of the granular material a (the moisture content in the intermediate passage 7 ′) so that the moisture content is 8% or less. The degree of heating in the first half of the tertiary drying passage 5 is adjusted and controlled by the heater H2, or the rotation speed of the hollow rotating shaft 54 is changed to change the residence time of the granular material a in the tertiary drying passage 5. Adjust to control the degree of drying.

  And in the front half part of this tertiary drying channel | path 5, while the fine granular material a is stirred by the stirring conveyance board 61a protrudingly provided in the hollow rotating shaft 54, it slowly goes to discharge port 9 'by the conveyance inclined surface 64a. While being transported, after drying all the granules a to a low moisture content of 8% or less, which can be stored, the heat is dissipated while passing through the latter half where the heater H2 is not provided. Then, it is charged and stored in an appropriate storage container B or the like from the discharge port 9 ′. The reason why the bread granule a is heated in the latter half of the tertiary drying passage 5 is that when it is taken out from the tertiary drying passage 5 while being hot, it absorbs moisture and solidifies. The moisture contained in the granular material a is converted into water vapor by heating, evaporates in the secondary drying passage 4 and the tertiary drying passage 5, and is discharged to the outside through the discharge pipes 46 and 56. Similarly to the hopper 10 on the primary drying passage 1 side, the discharge port 9 ′ may be provided with a gate shutter to prevent entry of small animals such as mice and insects when not in use.

  The waste bread processing method and processing apparatus according to the present invention can be used by efficiently crushing and drying waste bread discharged from a convenience store, a food manufacturing factory, etc., and mixing it with livestock feed or the like. Thus, the bread can be processed into powder.

Claims (8)

After the waste bread is fed into the primary drying passage and finely crushed by the crushing means provided in the primary drying passage, the moisture content of the crushed bread powder is reduced, and then the secondary drying passage A method for treating a waste bread, characterized by further reducing the water content of the crushed bread powder and grains. The processing method of the waste bread according to claim 1, wherein the bread granule discharged from the outlet of the primary drying passage is further crushed while being continuously fed into the secondary drying passage. A horizontal cylindrical primary drying passage provided with a waste pan charging hopper and provided with a crushing means and a hot-air jetting means inside, and accepting secondary powder particles discharged from the outlet of the primary drying passage A waste pan processing apparatus comprising a horizontal cylindrical secondary drying passage for drying. The crushing means for the waste pan provided in the primary drying passage is formed by projecting crushing blades at intervals in the length direction on the outer periphery of a rotating shaft provided rotatably in the primary drying passage. 4. The disposal apparatus for a waste pan according to claim 3, wherein the waste pan is pulverized finely. The hot air jetting means provided in the primary drying passage has a rotary shaft formed in a hollow shape, and the jet nozzle is directed to the outer peripheral surface of the hollow rotary shaft in the delivery direction of the crushed bread granule. Projecting at intervals in the length direction, and these injection nozzles are communicated with the hollow rotary shaft and the hollow rotary shaft is communicated with a hot air supply pipe disposed outside the primary drying passage. The processing apparatus of the disposal bread | pan of Claim 3 or Claim 4 characterized by these. A shielding plate that primarily closes the passage is disposed in the primary drying passage on the transport pan end side of the waste pan so that the passage can be opened and closed, and the passage between the shielding plate and the charging hopper is supplied from the charging hopper. 4. The waste waste pan is configured to be crushed by a crushing blade that is formed in a retention chamber of the waste pan that is formed and projects from one end of a hollow rotating shaft in the retention chamber. The disposal apparatus of the waste bread of any one of thru | or 5 thru | or 5. The outlet of the primary drying passage and the entrance of the secondary drying passage are communicated with each other by a cylindrical vertical passage, and a plurality of fixed-sized bread granules are passed through the vertical passage. A reticulate body provided with small holes is stretched, and a rotary blade is provided on the upper surface of the reticulated body to further finely grind the bread granule carried into the vertical passage from the primary drying passage side. The disposal apparatus for a waste pan according to any one of claims 3 to 6, characterized in that A hollow rotary shaft is disposed at the center of the secondary drying passage, and the inside of the secondary drying passage is heated by sending hot air into the hollow rotary shaft from outside the secondary drying passage through a hot air supply pipe. And a plurality of agitating and conveying plates that project the waste pan powder particles toward the outlet side of the secondary drying passage on the outer peripheral surface of the hollow rotating shaft, protruding in the lengthwise direction. The disposal apparatus for a waste pan according to any one of claims 3 to 7, wherein the processing apparatus is a waste pan.

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