CN111102831A - Rotary furnace for eggshell cooking - Google Patents

Abstract

The invention provides a rotary furnace for egg shell cooking, comprising: the rotary furnace comprises a rotary furnace body which is cylindrical and is rotatably erected on the upper end surface of a base, and a heat insulation cover body is fixedly arranged on the outer peripheral surface of the rotary furnace body; the heat insulation cover body is of an annular structure with openings at two ends, the gap is arranged at the periphery of the middle part of the rotary furnace body, and a heating device is distributed in the heat insulation cover body; the rotary motor is arranged on the upper end surface of the base and is in transmission connection with the rotary furnace body through a first transmission chain; the egg shell feeding device is arranged at one end of the rotary furnace body and communicated with the inner cavity of the rotary furnace body to feed the egg shells into the inner cavity of the rotary furnace body. The eggshell feeding device is arranged at the front end of the rotary furnace body, and the eggshells are continuously conveyed into the rotary furnace body through the eggshell feeding device to be cooked, so that the production efficiency is high, and the rotary furnace is suitable for batch egg shell cooking treatment.

Description

Rotary furnace for eggshell cooking

Technical Field

The invention relates to the technical field of poultry egg processing equipment, in particular to a rotary furnace for making eggshells.

Background

A large amount of eggshell waste is generated in the process of producing eggs in batches, and if the eggshells cannot be treated, bacteria are easily bred, so that the environment is polluted and unnecessary waste is caused.

The main component of the eggshell is calcium carbonate, which is a good natural calcium source. After the eggshell is cooked at high temperature, calcium oxide can be obtained and used for a drying agent or a fruit and vegetable cleaning agent. The eggshell is biological tissue and has no toxicity, so the organic calcium prepared by the eggshell is safe and nontoxic, and the application range is wide. However, the existing industrial high-temperature cooking equipment has a simple structure, can not continuously supply eggshells, and is not suitable for high-temperature cooking of large batches of eggshells.

Disclosure of Invention

The invention aims to provide a rotary furnace for egg shell cooking to solve the technical problems.

In order to achieve the purpose, the invention provides the following technical scheme: a rotary kiln for egg shell cooking, comprising:

the rotary furnace comprises a rotary furnace body which is cylindrical and is rotatably erected on the upper end surface of a base, and a heat insulation cover body is fixedly arranged on the outer peripheral surface of the rotary furnace body;

the heat insulation cover body is of an annular structure with openings at two ends, the gap is arranged at the periphery of the middle part of the rotary furnace body, and a heating device is distributed in the heat insulation cover body;

the rotary motor is arranged on the upper end surface of the base and is in transmission connection with the rotary furnace body through a first transmission chain;

the egg shell feeding device is arranged at one end of the rotary furnace body and communicated with the inner cavity of the rotary furnace body to feed the egg shells into the inner cavity of the rotary furnace body.

As an improvement of the present invention, the eggshell feeding device comprises:

a feeding motor;

one end of the spiral conveying cylinder is fixedly connected with the feeding motor, the other end of the spiral conveying cylinder extends into the inner cavity of the rotary furnace body, and an output shaft of the feeding motor is in transmission connection with a spiral blade in the spiral conveying cylinder;

and the side wall of the spiral conveying cylinder is provided with a feeding hopper which is communicated with the inner cavity of the spiral conveying cylinder.

As an improvement of the invention, the egg shell feeding device further comprises a front sealing isolation sleeve, one end of the rotary furnace body, which is close to the egg shell feeding device, is connected with the front sealing isolation sleeve, and the front sealing isolation sleeve comprises:

the shell is of a cylindrical structure with openings at two ends and is fixedly arranged on the upper end face of the base;

the locking assembly is arranged on the shell and on the inner wall of one end connected with the rotary furnace body, the locking assembly is used for locking the rotary furnace body in a sealing mode on the front sealing isolation sleeve, and the locking assembly comprises:

the fixed sliding sleeves are fixedly connected in mounting ring grooves formed in the inner cavity of the shell;

two ends of each arc-shaped sliding rod are movably inserted into the corresponding two adjacent fixed sliding sleeves respectively, and two ends of each arc-shaped sliding rod are fixedly connected with elastic pressing blocks;

a gap A is formed between the two elastic pressing blocks in the same fixed sliding sleeve;

the fixed sliding block is fixedly connected to the inner wall of the arc-shaped sliding rod, is close to the end part of the arc-shaped sliding rod and is in sliding connection with the fixed sliding sleeve;

the fixed sliding blocks which are connected to the same fixed sliding sleeve in a sliding mode are connected to the same arc-shaped locking plate through hinge rods;

and the middle part of the arc-shaped locking plate is provided with a locking pressure rod which penetrates through the fixed sliding sleeve and abuts against the gap A.

As an improvement of the invention, the number of the fixed sliding sleeves is four, the four fixed sliding sleeves are uniformly and fixedly connected on the inner wall of the shell, the number of the arc-shaped sliding rods is four, and the lengths of the four arc-shaped sliding rods inserted into the fixed sliding sleeves are equal.

As an improvement of the invention, one end of the locking compression rod, which is abutted to the gap A, is conical, and the distance length of the gap A is smaller than the diameter of the cone.

As an improvement of the invention, one end of the rotary furnace body is provided with a front sealing isolation sleeve, the other end is provided with a rear crushing device, and the rear crushing device comprises:

the grinding housing is fixedly arranged on the upper end surface of the base, and the rotary furnace body is communicated with the upper part of an inner cavity of the grinding housing;

the grinding shell is rotatably provided with four grinding rollers with mutually contacted surfaces;

one end of the grinding roller penetrates through the grinding housing and is fixedly connected with a transmission gear, and the four transmission gears are mutually meshed and are in transmission connection with a grinding motor through a second transmission chain.

As an improvement of the invention, a dispersion device is further arranged in the inner cavity of the crushing shell, and the dispersion device comprises:

the double-sided screen is arranged below the end part of the rotary furnace body and is formed by arranging two semicircular screens in a back-to-back manner, and a turning main shaft is fixedly arranged in the middle of the double-sided screen;

the central axis of the turning main shaft coincides with the central axis of the double-sided screen, one end of the turning main shaft is a free end, and the other end of the turning main shaft is fixedly connected with a reciprocating tilting component.

As an improvement of the present invention, the reciprocating tilting assembly comprises:

one end of the connecting block is coaxially and fixedly connected with the turning main shaft, the other end of the connecting block is fixedly connected with a turning gear, and the connecting block is also fixedly connected with a tilting shaft;

the tilting shaft is vertical to the turning main shaft, two ends of the tilting shaft are rotatably arranged on the inner wall of the grinding housing through bearings, the lower surface of one side of the tilting shaft is further connected to one end of a tension spring, and the other end of the tension spring is fixed to the inner wall of the grinding housing through a pull frame;

the end face, far away from the connecting block, of the turning gear is fixedly connected with a pressing ball, and the pressing ball is in a complete spherical shape;

the reciprocating rotating wheel is in contact fit with one side of the pressing ball, which is far away from the turning gear, and is divided into an upper wheel and a lower wheel, the upper wheel and the lower wheel synchronously rotate through a connecting shaft, and the reciprocating rotating wheel is also rotatably arranged on the inner wall of the crushing housing;

the lower end surface of the upper wheel is provided with a tilting spoke ring which surrounds the lower end surface of the upper wheel for a whole circle and is divided into a translation part and a turning part, the height of the turning part is greater than that of the translation part, and the tilting spoke ring is always in close contact with the pressure ball;

the upper end surface of the lower wheel is provided with a turning spoke ring which surrounds the upper end surface of the lower wheel for a whole circle, the turning spoke ring is divided into a free part and a ring tooth part, the position and the arc length of the ring tooth part correspond to the position and the arc length of the turning part on the tilting spoke ring, and the ring tooth part and the turning gear are switched in a reciprocating mode under the two states of separation and meshing;

in the rotation process of the reciprocating rotating wheel, the double-sided screen is switched between an inclined spreading state and a turning and pouring state in a reciprocating way;

the connecting shaft driving device is formed by meshing a first gear and an end face gear, the first gear is coaxially and fixedly connected to the lower end face of the connecting shaft, the end face gear is arranged on the outer end face of the transmission gear, and the first gear and the end face gear are always in a meshed state.

As an improvement of the invention, the rotary furnace body is also provided with a temperature detection filter circuit, which comprises:

the reverse input end of the operational amplifier U1 is connected with the resistor R1 and then grounded; the positive input end of the torsion sensor is connected with the torsion sensor; the output end of the capacitor is connected with the capacitor C1, the resistor R2 and the resistor R1 in series in sequence and then grounded;

a field effect transistor P1, the source of which is connected with a power supply, the grid of which is connected with the drain of the field effect transistor through a capacitor C1, and the grid of which is also connected with the output end of the operational amplifier U1;

the field effect transistor P2 and the field effect transistor P3 are short-circuited with each other at the grids, the source electrode of the field effect transistor P3 is short-circuited through a resistor R3, and the source electrode of the field effect transistor P3 is connected with the drain electrode of the field effect transistor P1;

the gates of the field effect transistor N1 and the field effect transistor N2 are shorted with each other, the source of the field effect transistor N1 is grounded, and the source of the field effect transistor N2 is grounded through a resistor R4; the drain electrode of the field effect transistor N2 is connected with the drain electrode of the field effect transistor P2 through R6; the drain electrode of the field effect transistor N1 is in short circuit with the grid electrode and is connected with the drain electrode of the field effect transistor P3;

the operational amplifier U2 is characterized in that the forward input end of the operational amplifier U2 is sequentially connected with a resistor R5 and a resistor R6 in series and then connected with the drain electrode of the field-effect tube P2, and the reverse input end of the operational amplifier U2 is sequentially connected with a resistor R7 and a resistor R6 and then connected with the drain electrode of the field-effect tube P2;

a triode Q1, the emitter of which is connected with the positive input end of the operational amplifier U2, the base of which is grounded through a resistor R8, and the collector of which is grounded;

a triode Q2, an emitter of which is connected with the inverting input terminal of the operational amplifier U2 through a resistor R9, a base of which is grounded through a resistor R10, and a collector of which is grounded;

the processor is connected with the drain electrode of the field effect transistor P2; the triode Q1 and the triode Q2 are PNP type triodes; the field effect transistor P1, the field effect transistor P2 and the field effect transistor P3 are P-type field effect transistors; the field effect transistor N1 and the field effect transistor N2 are N-type field effect transistors.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of another embodiment of the present invention;

FIG. 3 is a schematic structural view of a front seal boot of the present invention;

FIG. 4 is a side cross-sectional view of the front seal boot of the present invention;

FIG. 5 is an enlarged schematic view of FIG. 4 at A;

FIG. 6 is a cross-sectional view of the post grinding apparatus of the present invention;

FIG. 7 is a schematic view of the construction of the crushing roller of the present invention;

FIG. 8 is a view of the installation of the dispenser of the present invention;

FIG. 9 is a schematic view of a dispensing device according to the present invention;

FIG. 10 is another state view of the dispensing device of the present invention;

FIG. 11 is a top view of the diffusion device of the present invention;

FIG. 12 is a schematic structural view of a double-sided screen of the present invention;

FIG. 13 is an enlarged schematic view at B of FIG. 8;

FIG. 14 is a circuit diagram of the present invention.

The components in the figure are:

10-a rotary furnace body, 11-a rotary motor, 12-a first transmission chain,

20-a base, wherein the base is provided with a plurality of grooves,

30-a heat-insulating cover body, 31-a heating device,

40-an eggshell feeding device, 41-a feeding motor, 42-a spiral conveying cylinder, 43-a feeding hopper,

50-front sealing isolation sleeve, 51-shell, 511-mounting ring groove, 52-locking component, 521-fixed sliding sleeve, 522-arc sliding rod, 523-elastic pressing block, 524-gap A, 525-fixed sliding block, 526-arc locking plate, 527-hinged rod, 528-locking pressing rod,

60-rear grinding device, 61-grinding housing, 62-grinding roller, 63-transmission gear, 64-second transmission chain, 65-grinding motor,

70-a spreading device, 71-a double-sided screen, 72-a turning main shaft,

80-reciprocating tilting component, 81-connecting block, 82-tilting gear, 83-tilting shaft, 84-bearing, 85-tension spring, 86-pulling frame, 87-pressing ball,

90-reciprocating rotating wheel, 91-upper wheel, 92-lower wheel, 93-connecting shaft, 94-tilting spoke ring, 941-translational portion, 942-turning portion, 95-tilting spoke ring, 951-idle portion and 952-ring tooth portion,

100-connecting shaft driving device, 101-first gear, 102-face gear.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Referring to fig. 1, a rotary kiln for eggshell cooking comprises:

the rotary furnace comprises a rotary furnace body 10 which is cylindrical and is rotatably erected on the upper end surface of a base 20, and a heat insulation cover body 30 is fixedly arranged on the outer peripheral surface of the rotary furnace body 10;

the heat insulation cover body 30 is of an annular structure with openings at two ends, a gap is arranged at the periphery of the middle part of the rotary furnace body 10, and a heating device 31 is distributed in the heat insulation cover body 30;

the rotary motor 11 is arranged on the upper end surface of the base 20, and the rotary motor 11 is in transmission connection with the rotary furnace body 10 through a first transmission chain 12;

the egg shell feeding device 40 is arranged at one end of the rotary furnace body 10, and the egg shell feeding device 40 is communicated with the inner cavity of the rotary furnace body 10 and used for feeding the egg shells into the inner cavity of the rotary furnace body 10.

The working principle of the technical scheme is as follows: most industrial rotary furnaces have relatively precise cooking temperature control requirements, materials to be cooked are usually put into the rotary furnace in advance and sealed, and then are rotated for cooking, so that the problem that the temperature of the rotary furnace cannot be controlled is solved, and if the industrial rotary furnaces are used for cooking egg shells, the egg shells need to be continuously fed, rotated for cooking and conveyed out, and the cooking mode has low working efficiency. In order to adapt to the large-batch cooking with low requirement on cooking temperature, an eggshell feeding device 40 is arranged at the front end of the rotary furnace, and a large batch of eggshells are continuously fed into the rotary furnace body 10 through the eggshell feeding device 40 for cooking treatment. In the cooking process, a chain wheel is sleeved on the outer peripheral surface of the rotary furnace body 10, the rotary motor 11 is matched with the chain wheel through the first transmission chain 12 to drive the rotary furnace body 10 to rotate continuously, eggshells in the rotary furnace body 10 are cooked in the rotary furnace body 10 and move towards the other end under the pushing of the subsequently fed eggshells, and therefore continuous high-temperature cooking processing of batch eggshells is achieved.

The beneficial effects of the above technical scheme are that: the eggshell feeding device 40 is arranged at the front end of the rotary furnace body 10, and the eggshells are continuously conveyed into the rotary furnace body 10 through the eggshell feeding device 40 for cooking, so that the production efficiency is high, and the rotary furnace is suitable for batch eggshell cooking treatment.

In one embodiment of the present invention, the eggshell loading device 40 comprises:

a feeding motor 41;

one end of the spiral conveying cylinder 42 is fixedly connected with the feeding motor 41, the other end of the spiral conveying cylinder extends into the inner cavity of the rotary furnace body 10, and an output shaft of the feeding motor 41 is in transmission connection with a spiral blade in the spiral conveying cylinder 42;

and the feeding hopper 43 is arranged on the side wall of the spiral conveying cylinder 42, and the feeding hopper 43 is communicated with the inner cavity of the spiral conveying cylinder 42.

The working principle and the beneficial effects of the technical scheme are as follows: the eggshell feeding device 40 is used for continuously feeding a large batch of eggshells into the rotary furnace body 10 for rotary cooking, so that the eggshells can be pushed to an outlet while being cooked. Under the driving of the feeding motor 41, the spiral blades continuously push the eggshells entering the spiral conveying cylinder 42 from the feeding hopper 43 into the rotary furnace body 10 for cooking. The eggshell feeding device 40 is high in working efficiency, not prone to failure and long in service life.

In an embodiment of the present invention, the present invention further comprises a front sealing isolation sleeve 50, wherein the front sealing isolation sleeve 50 is connected to one end of the rotary kiln body 10 close to the eggshell feeding device 40, and the front sealing isolation sleeve 50 comprises:

a housing 51 having a cylindrical structure with openings at both ends and fixedly disposed on the upper end surface of the base 20;

a locking assembly 52 is arranged on the inner wall of one end of the outer shell 51 connected with the rotary furnace body 10, the locking assembly 52 is used for locking the rotary furnace body 10 on the front sealing isolation sleeve 50 in a sealing manner, and the locking assembly 52 comprises:

the fixed sliding sleeves 521 are fixedly connected in mounting ring grooves 511 formed in the inner cavity of the shell 51;

two ends of the arc-shaped sliding rod 522 are movably inserted into the two adjacent fixed sliding sleeves 521 respectively, and two ends of the arc-shaped sliding rod 522 are fixedly connected with elastic pressing blocks 523;

a gap A524 is arranged between the two elastic pressing blocks 523 in the same fixed sliding sleeve 521;

the inner wall of the arc-shaped sliding rod 522 is fixedly connected with a fixed sliding block 525, and the fixed sliding block 525 is close to the end part of the arc-shaped sliding rod 522 and is in sliding connection with the fixed sliding sleeve 521;

the arc-shaped locking plates 526, the fixed sliding blocks 525 which are connected on the same fixed sliding sleeve 521 in a sliding way are connected with the same arc-shaped locking plate 526 through the hinge rods 527;

and a locking pressing rod 528 is arranged in the middle of the arc-shaped locking plate 526, and the locking pressing rod 528 penetrates through the fixed sliding sleeve 521 and abuts against the gap a 524.

The number of the fixed sliding sleeves 521 is four, the four fixed sliding sleeves 521 are uniformly and fixedly connected to the inner wall of the shell 51, the number of the arc-shaped sliding rods 522 is four, and the lengths of the four arc-shaped sliding rods 522 inserted into the fixed sliding sleeves 521 are equal.

One end of the locking pressing rod 528 abutting against the gap a524 is conical, and the distance length of the gap a524 is smaller than the diameter of the cone.

The working principle and the beneficial effects of the technical scheme are as follows: because the spiral conveying cylinder 42 needs to be introduced into the interior of the rotary furnace body 10, a large gap is inevitably generated at the joint of the spiral conveying cylinder and the rotary furnace body, and a front sealing isolation sleeve 50 is arranged between the spiral conveying cylinder and the rotary furnace body to avoid unnecessary waste caused by excessive heat loss to the air and also to be beneficial to temperature control of the rotary furnace body 10. The two ends of the outer shell 51 of the front sealing isolation sleeve 50 are respectively connected with the spiral conveying cylinder 42 and the rotary furnace body 10 in a sealing mode, an installation ring groove 511 is further formed in the inner wall of the outer shell 51, a locking component 52 is arranged in the installation ring groove 511, and the outer wall of the rotary furnace body 10 is clamped and locked when the rotary furnace body 10 is inserted into the front sealing isolation sleeve 50. After the rotary furnace body 10 is inserted, the outer wall of the rotary furnace body can enable the arc-shaped locking plate 526 to move inwards, one side of the arc-shaped locking plate 526 drives the locking pressing rod 528 to press towards the gap A524, the other side of the arc-shaped locking plate 526 enables the arc-shaped sliding rods 522 to be mutually pressed through the hinge rod 527, the distance of the gap A is reduced, and finally the two elastic pressing blocks 523 forming the gap A provide reaction force for the arc-shaped locking plate 526 to lock the rotary furnace body 10 in the front sealing isolation sleeve 50, so that the relative displacement between the two elastic pressing blocks is avoided, and the sealing performance.

In one embodiment of the present invention, the rotary kiln body 10 is provided with a front sealing isolation sleeve 50 at one end and a rear grinding device 60 at the other end, and the rear grinding device 60 comprises:

a grinding housing 61 fixedly arranged on the upper end surface of the base 20, wherein the rotary furnace body 10 is communicated with the upper part of the inner cavity of the grinding housing 61;

a crushing roller 62, wherein the crushing housing 61 is rotatably provided with four crushing rollers 62 with surfaces contacting with each other;

one end of the grinding roller 62 penetrates through the grinding housing 61 and is fixedly connected with a transmission gear 63, and the four transmission gears 63 are mutually meshed and are in transmission connection with a grinding motor 65 through a second transmission chain 64.

The working principle and the beneficial effects of the technical scheme are as follows: the post-crushing device 60 is provided at an outlet end of the rotary kiln body 10, and is a device for crushing the eggshells cooked at a high temperature into powder. The eggshells enter the grinding housing 61 through the outlet of the rotary furnace body 10 and fall above the grinding rollers 62, and the grinding rollers 62 which rotate synchronously and contact with each other on the surface crush the eggshells falling into the gap into powder when rotating, so as to facilitate the next action.

Referring to fig. 8-13, in one embodiment of the present invention, a distribution device 70 is further disposed in the inner cavity of the grinding housing 61, the distribution device 70 comprising:

the double-sided screen 71 is arranged below the end part of the rotary furnace body 10, the double-sided screen 71 is formed by arranging two semicircular arc screens in an opposite mode, and a turning main shaft 72 is fixedly arranged in the middle of the double-sided screen 71;

the central axis of the turning main shaft 72 is coincident with the central axis of the double-sided screen 71, one end of the turning main shaft 72 is a free end, and the other end of the turning main shaft is fixedly connected with a reciprocating tilting component 80.

The reciprocating tilting assembly 80 includes:

one end of the connecting block 81 is coaxially and fixedly connected with the turning main shaft 72, the other end of the connecting block 81 is fixedly connected with a turning gear 82, and the connecting block 81 is further fixedly connected with a tilting shaft 83;

the tilting shaft 83 is perpendicular to the flipping spindle 72, two ends of the tilting shaft 83 are rotatably arranged on the inner wall of the grinding housing 61 through a bearing 84, the lower surface of one side of the tilting shaft 83 is further connected to one end of a tension spring 85, and the other end of the tension spring 85 is fixed on the inner wall of the grinding housing 61 through a pull frame 86;

the end face, far away from the connecting block 81, of the turning gear 82 is fixedly connected with a pressing ball 87, and the pressing ball 87 is in a complete spherical shape;

a reciprocating rotating wheel 90 is in contact fit with one side of the pressing ball 87 far away from the flipping gear 82, the reciprocating rotating wheel 90 is divided into an upper wheel 91 and a lower wheel 92, the upper wheel 91 and the lower wheel 92 synchronously rotate through a connecting shaft 93, and the reciprocating rotating wheel 90 is also rotatably arranged on the inner wall of the grinding housing 61;

a tilting spoke ring 94 is arranged on the lower end surface of the upper wheel 91, the tilting spoke ring 94 surrounds the lower end surface of the upper wheel 91 for a whole circle, the tilting spoke ring 94 is divided into a translation part 941 and a flipping part 942, the height of the flipping part 942 is greater than that of the translation part 941, and the tilting spoke ring 94 is always in close contact with the pressure ball 87;

the upper end surface of the lower wheel 92 is provided with a spoke flipping ring 95, the spoke flipping ring 95 surrounds the upper end surface of the lower wheel 92 for a whole circle, the spoke flipping ring 95 is divided into a free part 951 and a ring tooth part 952, the position and the arc length of the ring tooth part 952 correspond to the position and the arc length of the flip part 942 on the spoke flipping ring 94, and the ring tooth part 952 and the flipping gear 82 are switched to and fro in two states of separation and engagement; the arc length ratio of the turning part 942 to the translation part 941 can be set to 1:3, so that the double-sided screen 71 can be in a translation state for three quarters of the time and in a turning state for one quarter of the time;

during the rotation of the reciprocating rotation wheel 90, the double-sided screen 71 is switched between an inclined spreading state and a turning and dumping state;

the connecting shaft driving device 100 is formed by meshing a first gear 101 and a face gear 102, the first gear 010 is coaxially and fixedly connected to the lower end face of the connecting shaft 93, the face gear 102 is arranged on the outer end face of the transmission gear 63, and the first gear 101 and the face gear 102 are always in a meshed state.

The working principle and the beneficial effects of the technical scheme are as follows: when the eggshells in the rotary furnace body 10 are cooked at high temperature and conveyed to the rear grinding device 60, because the eggshells are different in size after being cooked, some eggshells can also store complete shapes, and some eggshells are crushed into small fragments, the cooked eggshells enter the rear grinding device 60 from the rotary furnace body 10, in the process that the large-size eggshells are ground into powder by the grinding rollers 62, gaps between the grinding rollers 62 which are in mutual pressing contact can be propped open by the large-size eggshells, and therefore most small-fragment eggshells can fall and leak from the propped gaps and cannot be ground into powder by the grinding rollers 62.

If a vibration type screen is provided directly under the rotary kiln body 10 above the crushing roller 62, although it is possible to sort out large-sized eggshells and small-sized eggshells, the small-sized eggshells fall onto the crushing roller 62 through the screen holes, and for the large-sized eggshells left on the screen, the small-sized eggshells can fall onto the crushing roller 62 only at the side edges or end faces of the obliquely arranged screen. Due to the fact that the residence time of the large-size eggshells is long, the eggshells piled on the screen for a long time block the screen holes, normal screening of the small-size eggshells is affected, and crushing efficiency is affected.

In order to be able to screen the cooked eggshells of different sizes on the one hand and to avoid that large eggshells are retained on the screen to affect the screening of small-sized fragmented eggshells on the other hand, a spreading device 70 is provided in the post-grinding device 60 to facilitate the spreading of the eggshells. The main structure of the distribution device 70 is a double-sided screen 71, both sides of which are capable of screening the eggshells, and a reciprocating tilting assembly 80 that enables the double-sided screen 71 to be flipped in a reciprocating manner. The double-sided screen 71 has two states in total under the action of the reciprocating tilting assembly 80: a translation state and a flipping state.

The translation state is as follows: when the double-sided sieve 71 is in the translational state, the double-sided sieve 71 is in the inclined state by the tension spring 85, the egg shells fed out from the rotary kiln body 10 fall on the double-sided sieve 71 for screening, the small egg shells fall on the crushing roller 62 through the sieve holes, and the large egg shells remain on the double-sided sieve 71. At this time, the contact part of the pressure ball 87 and the upper wheel 91 in the reciprocating rotating wheel 90 is the translation part 941 of the tilting spoke ring 94, and the pressure ball 87 is matched with the tension spring 85 under the limiting effect of the translation part 941, so that the double-sided screen 71 can be placed at a fixed inclination angle only.

Turning state: when the double-sided screen 71 is in a flipping state, the double-sided screen 71 is in a horizontal state, at this time, the contact position of the pressure ball 87 and the upper wheel 91 in the reciprocating rotary wheel 90 is the flipping part 942 of the flipping spoke ring 94, because the height of the flipping part 942 is greater than that of the translation part 941, the double-sided screen 71 rotates around the flipping shaft 83 to the horizontal state under the pressing of the flipping part 942, when the double-sided screen 71 is in the horizontal state, the flipping gear 82 is in a vertical state and can be meshed with the ring tooth part 952 of the flipping spoke ring 95, and because the reciprocating rotary wheel is driven by the transmission gear 63 to rotate continuously, the flipping main shaft 72 can drive the double-sided screen 71 to flip in the meshing process of the flipping gear 82 and the ring tooth part 952. In the initial design, the arc length of the ring gear portion 952 is designed to be half of the arc length of the flipping gear 82, and after the ring gear portion 952 and the flipping gear 82 are separated from the meshing state, the double-sided screen 71 just completes one flipping.

The whole action process is as follows: in the whole work flow, the reciprocating rotary wheel 90 is driven by the transmission gear 63 to rotate continuously, and the double-sided screen 71 is switched between the inclined state and the turning state in a reciprocating mode. When the translation portions 941 contact the pressure balls 87, the double-sided screen 71 is in an inclined state; when the reciprocating wheel 90 rotates, the flipping part 942 contacts with the pressing ball 87, and when the flipping part 942 presses the double-sided screen 71 into a horizontal state, the ring tooth part 952 just meshes with the flipping gear 82, the flipping main shaft 72 is driven by the ring tooth part 952 to rotate 180 degrees, and at this time, the left double-sided screen 71 falls on the crushing roller 62 under the action of gravity during flipping. Because the reciprocating wheel 90 is rotating continuously, the double-sided screen 71 is also switched between two states of tilting translation and turning.

Referring to fig. 14, the rotary kiln body is further provided with a temperature detection filter circuit, which includes:

the reverse input end of the operational amplifier U1 is connected with the resistor R1 and then grounded; the positive input end of the torsion sensor is connected with the torsion sensor; the output end of the capacitor is connected with the capacitor C1, the resistor R2 and the resistor R1 in series in sequence and then grounded;

a field effect transistor P1, the source of which is connected with a power supply, the grid of which is connected with the drain of the field effect transistor through a capacitor C1, and the grid of which is also connected with the output end of the operational amplifier U1;

the field effect transistor P2 and the field effect transistor P3 are short-circuited with each other at the grids, the source electrode of the field effect transistor P3 is short-circuited through a resistor R3, and the source electrode of the field effect transistor P3 is connected with the drain electrode of the field effect transistor P1;

the gates of the field effect transistor N1 and the field effect transistor N2 are shorted with each other, the source of the field effect transistor N1 is grounded, and the source of the field effect transistor N2 is grounded through a resistor R4; the drain electrode of the field effect transistor N2 is connected with the drain electrode of the field effect transistor P2 through R6; the drain electrode of the field effect transistor N1 is in short circuit with the grid electrode and is connected with the drain electrode of the field effect transistor P3;

the operational amplifier U2 is characterized in that the forward input end of the operational amplifier U2 is sequentially connected with a resistor R5 and a resistor R6 in series and then connected with the drain electrode of the field-effect tube P2, and the reverse input end of the operational amplifier U2 is sequentially connected with a resistor R7 and a resistor R6 and then connected with the drain electrode of the field-effect tube P2;

a triode Q1, the emitter of which is connected with the positive input end of the operational amplifier U2, the base of which is grounded through a resistor R8, and the collector of which is grounded;

a triode Q2, an emitter of which is connected with the inverting input terminal of the operational amplifier U2 through a resistor R9, a base of which is grounded through a resistor R10, and a collector of which is grounded;

the processor is connected with the drain electrode of the field effect transistor P2; the triode Q1 and the triode Q2 are PNP type triodes; the field effect transistor P1, the field effect transistor P2 and the field effect transistor P3 are P-type field effect transistors; the field effect transistor N1 and the field effect transistor N2 are N-type field effect transistors.

The filter circuit reduces the temperature coefficient of the output voltage by adding a temperature compensation circuit, thereby ensuring the accuracy of the temperature detection of the rotary furnace body.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (9)

1. A rotary furnace for egg shell cooking, characterized by comprising:

the rotary furnace comprises a rotary furnace body (10) which is cylindrical and is rotatably erected on the upper end surface of a base (20), and a heat insulation cover body (30) is fixedly arranged on the outer peripheral surface of the rotary furnace body (10);

the heat insulation cover body (30) is of an annular structure with openings at two ends, a gap is arranged at the periphery of the middle part of the rotary furnace body (10), and a heating device (31) is distributed on the inner part of the heat insulation cover body (30);

the rotary motor (11) is arranged on the upper end face of the base (20), and the rotary motor (11) is in transmission connection with the rotary furnace body (10) through a first transmission chain (12);

the egg shell feeding device (40) is arranged at one end of the rotary furnace body (10), and the egg shell feeding device (40) is communicated with the inner cavity of the rotary furnace body (10) and used for feeding the egg shells into the inner cavity of the rotary furnace body (10).

2. The rotary kiln for eggshell cooking as claimed in claim 1, wherein: the eggshell loading device (40) comprising:

a feeding motor (41);

one end of the spiral conveying cylinder (42) is fixedly connected with the feeding motor (41), the other end of the spiral conveying cylinder extends into the inner cavity of the rotary furnace body (10), and an output shaft of the feeding motor (41) is in transmission connection with a spiral blade in the spiral conveying cylinder (42);

the side wall of the spiral conveying cylinder (42) is provided with the feeding hopper (43), and the feeding hopper (43) is communicated with the inner cavity of the spiral conveying cylinder (42).

3. The rotary kiln for eggshell cooking as claimed in claim 2, wherein: still include preceding sealed spacer sleeve (50), rotary furnace body (10) are close to the one end of eggshell loading attachment (40) is connected with preceding sealed spacer sleeve (50), preceding sealed spacer sleeve (50) include:

the shell (51) is of a cylindrical structure with two open ends and is fixedly arranged on the upper end surface of the base (20);

the inner wall of the end, connected with the rotary furnace body (10), of the shell (51) is provided with a locking assembly (52), the locking assembly (52) is used for locking the rotary furnace body (10) on the front sealing isolation sleeve (50) in a sealing manner, and the locking assembly (52) comprises:

the fixed sliding sleeves (521), a plurality of fixed sliding sleeves (521) are fixedly connected in an installation ring groove (511) formed in the inner cavity of the shell (51);

two ends of each arc-shaped sliding rod (522) are movably inserted into the two adjacent fixed sliding sleeves (521), and two ends of each arc-shaped sliding rod (522) are fixedly connected with elastic pressing blocks (523);

a gap A (524) is arranged between the two elastic pressing blocks (523) in the same fixed sliding sleeve (521);

the inner wall of the arc-shaped sliding rod (522) is fixedly connected with a fixed sliding block (525), and the fixed sliding block (525) is close to the end part of the arc-shaped sliding rod (522) and is in sliding connection with the fixed sliding sleeve (521);

the arc-shaped locking plates (526), the fixed sliding blocks (525) which are connected on the same fixed sliding sleeve (521) in a sliding way are connected to the same arc-shaped locking plate (526) through the hinge rods (527);

the middle part of the arc-shaped locking plate (526) is provided with a locking pressure rod (528), and the locking pressure rod (528) penetrates through the fixed sliding sleeve (521) and abuts against the gap A (524).

4. The rotary kiln for eggshell cooking as claimed in claim 3, wherein: the number of the fixed sliding sleeves (521) is four, the four fixed sliding sleeves (521) are uniformly and fixedly connected to the inner wall of the shell (51), the number of the arc-shaped sliding rods (522) is four, and the lengths of the four arc-shaped sliding rods (522) inserted into the fixed sliding sleeves (521) are equal.

5. The rotary kiln for eggshell cooking as claimed in claim 3, wherein: one end of the locking pressure rod (528) abutting against the gap A (524) is conical, and the distance length of the gap A (524) is smaller than the diameter of the cone.

6. The rotary kiln for eggshell cooking as claimed in claim 3, wherein: rotary furnace body (10) one end is provided with preceding sealed spacer sleeve (50), and milling device (60) behind the other end setting, milling device (60) include after the back:

the grinding housing (61) is fixedly arranged on the upper end surface of the base (20), and the rotary furnace body (10) is communicated with the upper part of the inner cavity of the grinding housing (61);

a crushing roller (62), wherein the crushing cover (61) is rotatably provided with four crushing rollers (62) with surfaces contacting with each other;

one end of the grinding roller (62) penetrates through the grinding housing (61) and is fixedly connected with a transmission gear (63), and the four transmission gears (63) are mutually meshed and are in transmission connection with a grinding motor (65) through a second transmission chain (64).

7. The rotary kiln for eggshell cooking as claimed in claim 6, wherein: a dispersion device (70) is further arranged in the inner cavity of the crushing shell (61), and the dispersion device (70) comprises:

the double-sided screen (71) is arranged below the end part of the rotary furnace body (10), the double-sided screen (71) is formed by arranging two semicircular arc screens in an opposite mode, and a turning main shaft (72) is fixedly arranged in the middle of the double-sided screen (71);

the central axis of the turning main shaft (72) is superposed with the central axis of the double-sided screen (71), one end of the turning main shaft (72) is a free end, and the other end of the turning main shaft is fixedly connected with a reciprocating tilting component (80).

8. The rotary kiln for eggshell cooking as claimed in claim 7, wherein: the reciprocating cocking assembly (80) comprising:

one end of the connecting block (81) is coaxially and fixedly connected with the turning main shaft (72), the other end of the connecting block is fixedly connected with a turning gear (82), and the connecting block (81) is further fixedly connected with a tilting shaft (83);

the tilting shaft (83) is vertical to the flipping main shaft (72), two ends of the tilting shaft (83) are rotatably arranged on the inner wall of the grinding housing (61) through bearings (84), the lower surface of one side of the tilting shaft (83) is further connected to one end of a tension spring (85), and the other end of the tension spring (85) is fixed on the inner wall of the grinding housing (61) through a pull frame (86);

the end face, far away from the connecting block (81), of the turning gear (82) is fixedly connected with a pressing ball (87), and the pressing ball (87) is in a complete spherical shape;

the reciprocating rotating wheel (90) is in contact fit with one side, far away from the turning gear (82), of the pressing ball (87), the reciprocating rotating wheel (90) is divided into an upper wheel (91) and a lower wheel (92), the upper wheel (91) and the lower wheel (92) synchronously rotate through a connecting shaft (93), and the reciprocating rotating wheel (90) is also rotatably arranged on the inner wall of the crushing cover shell (61);

a tilting spoke ring (94) is arranged on the lower end face of the upper wheel (91), the tilting spoke ring (94) surrounds the lower end face of the upper wheel (91) for a whole circle, the tilting spoke ring (94) is divided into a translation part (941) and a flipping part (942), the height of the flipping part (942) is greater than that of the translation part (941), and the tilting spoke ring (94) is always in close contact with the press ball (87);

the upper end face of the lower wheel (92) is provided with a spoke turning ring (95), the spoke turning ring (95) surrounds the upper end face of the lower wheel (92) for a whole circle, the spoke turning ring (95) is divided into an idle part (951) and a ring tooth part (952), the position and the arc length of the ring tooth part (952) correspond to the position and the arc length of an upper turning part (942) of the spoke turning ring (94), and the ring tooth part (952) and the turning gear (82) are switched in a reciprocating mode under the two states of separation and meshing;

during the rotation of the reciprocating rotating wheel (90), the double-sided screen (71) is switched between an inclined spreading state and a turning and dumping state;

the connecting shaft driving device (100) is formed by meshing a first gear (101) and a face gear (102), the first gear (010) is coaxially and fixedly connected to the lower end face of the connecting shaft (93), the face gear (102) is arranged on the outer end face of the transmission gear (63), and the first gear (101) and the face gear (102) are always in a meshed state.

9. The rotary kiln for shell cooking as claimed in claim 8, wherein: still be equipped with temperature detection filter circuit on rotary furnace body (10), include:

the reverse input end of the operational amplifier U1 is connected with the resistor R1 and then grounded; the positive input end of the torsion sensor is connected with the torsion sensor; the output end of the capacitor is connected with the capacitor C1, the resistor R2 and the resistor R1 in series in sequence and then grounded;

a field effect transistor P1, the source of which is connected with a power supply, the grid of which is connected with the drain of the field effect transistor through a capacitor C1, and the grid of which is also connected with the output end of the operational amplifier U1;

the field effect transistor P2 and the field effect transistor P3 are short-circuited with each other at the grids, the source electrode of the field effect transistor P3 is short-circuited through a resistor R3, and the source electrode of the field effect transistor P3 is connected with the drain electrode of the field effect transistor P1;

the gates of the field effect transistor N1 and the field effect transistor N2 are shorted with each other, the source of the field effect transistor N1 is grounded, and the source of the field effect transistor N2 is grounded through a resistor R4; the drain electrode of the field effect transistor N2 is connected with the drain electrode of the field effect transistor P2 through R6; the drain electrode of the field effect transistor N1 is in short circuit with the grid electrode and is connected with the drain electrode of the field effect transistor P3;

the operational amplifier U2 is characterized in that the forward input end of the operational amplifier U2 is sequentially connected with a resistor R5 and a resistor R6 in series and then connected with the drain electrode of the field-effect tube P2, and the reverse input end of the operational amplifier U2 is sequentially connected with a resistor R7 and a resistor R6 and then connected with the drain electrode of the field-effect tube P2;

a triode Q1, the emitter of which is connected with the positive input end of the operational amplifier U2, the base of which is grounded through a resistor R8, and the collector of which is grounded;

a triode Q2, an emitter of which is connected with the inverting input terminal of the operational amplifier U2 through a resistor R9, a base of which is grounded through a resistor R10, and a collector of which is grounded;

the processor is connected with the drain electrode of the field effect transistor P2; the triode Q1 and the triode Q2 are PNP type triodes; the field effect transistor P1, the field effect transistor P2 and the field effect transistor P3 are P-type field effect transistors; the field effect transistor N1 and the field effect transistor N2 are N-type field effect transistors.

Images