CN112815664A

CN112815664A - Uniformly-stirring dewatering system for compound fertilizer particle production and working method

Info

Publication number: CN112815664A
Application number: CN202110035214.2A
Authority: CN
Inventors: 顾健健
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-05-18

Abstract

The invention discloses a stirring and dewatering system for producing compound fertilizer particles, which comprises a material receiving funnel, wherein the lower end of the material receiving funnel is provided with a vertical material leaking pipe, and particles in a hopper cavity in the material receiving funnel can leak downwards through the material leaking pipe; the outer wall of the lower end of the material leaking pipe is fixedly connected with a fixed support; the outer wall of the material leakage pipe is rotatably provided with a rotary cylinder through a bearing; the device has a simple structure, and has the functions of uniformly mixing, dehydrating and rapidly cooling the compound fertilizer particles.

Description

Uniformly-stirring dewatering system for compound fertilizer particle production and working method

Technical Field

The invention belongs to the field of compound fertilizer technology.

Background

Compound fertilizer granule can take place the condition of bonding because the water content is big at the mixing process, consequently need carry out dehydration before the fertilizer granule of mixing is stored, and then need develop a mixing more evenly, and the dehydration process is mild quick, and can rapid cooling's device.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a uniform stirring dehydration system for producing compound fertilizer particles, which is rapidly cooled in the dehydration process, and a working method thereof.

The technical scheme is as follows: in order to achieve the purpose, the uniformly stirring and dehydrating system for producing the compound fertilizer particles comprises a material receiving funnel, wherein the lower end of the material receiving funnel is provided with a vertical material leaking pipe, and particles in a hopper cavity in the material receiving funnel can leak downwards through the material leaking pipe; the outer wall of the lower end of the material leaking pipe is fixedly connected with a fixed support; the outer wall of the material leakage pipe is rotatably provided with a rotary cylinder through a bearing;

a rotary ring is coaxially arranged above the material receiving funnel, a plurality of connecting arms are circumferentially distributed around the material receiving funnel in an array manner, and the upper end and the lower end of each connecting arm are respectively and fixedly connected with the rotary ring and the rotary cylinder, so that the rotary ring synchronously rotates along with the rotary cylinder;

a left semicircle outer uniform mixing pot body unit and a right semicircle outer uniform mixing pot body unit are arranged in the enclosing range of the rotary ring, a circular ring structure formed by combining the left semicircle outer uniform mixing pot body unit and the right semicircle outer uniform mixing pot body unit is marked as an outer ring uniform mixing pot body unit, the axis of a ring body of the outer ring uniform mixing pot body unit is coaxial with the axis of the rotary ring, and the outer ring uniform mixing pot body unit synchronously rotates along with the rotary ring;

the belt synchronizing wheel is coaxially and synchronously arranged on the rotary drum, and the driving device can drive the belt synchronizing wheel through the belt transmission unit, so that the rotary drum rotates.

Further, an inner ring stirring pot body unit is coaxially arranged in the enclosing range of the outer ring stirring pot body unit, an electric heating device is uniformly arranged in the inner ring stirring pot body unit, and the electric heating device can enable the inner ring stirring pot body unit to generate heat.

Further, the outer ring uniform mixing pot body unit and the inner ring uniform mixing pot body unit can rotate coaxially and relatively, the whole formed by combining the outer ring uniform mixing pot body unit and the inner ring uniform mixing pot body unit is marked as an annular uniform mixing pot, the longitudinal section of a ring body of the annular uniform mixing pot is a semicircle with an upward opening, and an annular uniform mixing groove with a semicircular longitudinal section is formed in the pot of the annular uniform mixing pot;

a plurality of horizontal first stirring rods distributed in a circumferential array and a plurality of horizontal second stirring rods distributed in a circumferential array are distributed above and below the inner wall of the inner ring stirring pot body unit; a plurality of horizontal third stirring rods are distributed on the inner wall of the outer ring stirring pot body unit in a circumferential array; the third stirring rods are arranged between the first stirring rods and the second stirring rods; the outer ring stirring pan body unit and the inner ring stirring pan body unit rotate in opposite directions, so that the first stirring rods, the second stirring rods and the third stirring rods are in staggered rotary motion.

Furthermore, the outer ring stirring pan body unit and the inner ring stirring pan body unit are in sliding fit, or a first gap is formed between the outer ring stirring pan body unit and the inner ring stirring pan body unit, and the first gap is smaller than the diameter of fertilizer particles.

The inner ring stirring pot body unit is characterized by further comprising a horizontal rotary disc which is coaxial with the annular stirring pot, the outer edge of the rotary disc is fixedly connected with the outline of the inner ring of the ring body of the inner ring stirring pot body unit in an integrated manner, and an air negative pressure cavity is formed in the enclosing range of the inner ring stirring pot body unit on the lower side of the rotary disc; the upper part of the rotary disc also comprises a central motor, the central motor is fixed on a motor bracket, and the lower end of an output shaft of the central motor is fixedly connected with the rotary disc with the same axle center; the central electric motor drives the rotary disc and the inner ring stirring pan body unit to rotate through the output shaft.

Further, an annular dehydration pot is coaxially arranged right below the annular stirring pot, the longitudinal section of a ring body of the annular dehydration pot is a semicircle with an upward opening, and an annular dehydration channel with a crescent-shaped section is formed between the annular stirring pot and the annular dehydration pot;

the outer ring of the annular dehydration pot is integrally provided with an annular pot outer edge, and an annular air supplement opening is formed by the distance between the annular pot outer edge and the outer side cambered surface of the outer ring stirring pot body unit; the outer ring of the ring body of the annular dehydration channel is communicated with the outside through an air supplement port;

the annular hot air outlet is formed by the space between the inner ring of the annular body of the annular dehydration boiler and the outer arc surface of the inner ring stirring boiler body unit and is communicated with the air negative pressure cavity; an axial flow negative pressure fan barrel is fixedly arranged coaxially within the enclosing range of the ring body of the annular dehydration boiler, and the upper end of the axial flow negative pressure fan barrel is fixedly connected with the upper end inner ring of the annular dehydration boiler through a ring body connecting piece; an axial flow negative pressure fan is arranged in a vertical air guide channel in the axial flow negative pressure fan barrel, an air suction opening of the axial flow negative pressure fan is upward, and negative pressure is formed in the air negative pressure cavity by the operation of the axial flow negative pressure fan; the lower end of the axial flow negative pressure fan barrel is in supporting connection with the inner wall of the material receiving hopper through a plurality of fan supporting arms.

Furthermore, a pair of horizontal left retractors is fixedly installed on the inner side of the left end of the rotary ring, and a pair of horizontal right retractors is fixedly installed on the inner side of the right end of the rotary ring; the tail end of a left telescopic rod of the left telescopic device is fixedly connected to the outer wall of the left semicircle outer stirring pot body unit, and the tail end of a right telescopic rod of the right telescopic device is fixedly connected to the outer wall of the right semicircle outer stirring pot body unit; the left telescopic rod and the right telescopic rod retract to enable the left semicircle external stirring pan body unit and the right semicircle external stirring pan body unit to move away from each other; the left semicircle outer uniform mixing pot body unit and the right semicircle outer uniform mixing pot body unit move away from each other, so that the left half part bottom and the right half part bottom of the annular uniform mixing groove respectively form a left crescent-shaped material leakage port and a right crescent-shaped material leakage port; fertilizer particles which are leaked downwards from the left crescent-shaped material leakage opening and the right crescent-shaped material leakage opening just fall into the annular dehydration channel;

the annular dehydration pot is formed by combining an inner ring dehydration pot body unit and an outer ring dehydration pot body unit which are coaxial, and the inner ring dehydration pot body unit is in sliding fit with the inner ring of the outer ring dehydration pot body unit; a pair of vertical lifters is fixedly installed on the outer wall of the material receiving funnel, the upper end of a lifting rod of each lifter is fixedly connected with the outer ring dehydration pot body unit, the lifters can drive the outer ring dehydration pot body unit to descend through the lifting rods, so that a circular ring-shaped material leakage port is formed between the inner ring dehydration pot body unit and the outer ring dehydration pot body unit, and fertilizer particles in the circular dehydration channel can leak into the hopper cavity from the circular ring-shaped material leakage port;

a plurality of stir-frying blades are distributed in the annular dehydration channel in a circumferential array; the stir-frying blade is of an arc slope-shaped metal sheet structure, the upper surface of the stir-frying blade is a downward-concave particle climbing arc-shaped inclined surface, the contour line of the lower end of the particle climbing arc-shaped inclined surface is in sliding and tangent fit with the inner wall of the arc surface of the annular dehydration pot, the upper part of the particle climbing arc-shaped inclined surface of the stir-frying blade is provided with a material leaking hole in a hollow manner, the upper end of each stir-frying blade is fixedly connected with a horizontal support beam, the tail end of the support beam is fixed on a beam seat, and the beam seat is fixed on the outer wall of the inner ring stirring pot body unit, so that each stir-frying blade follows the inner ring stirring pot body.

Further, the working method of the uniform stirring and dewatering system for producing the compound fertilizer particles comprises the following steps:

the method comprises the following steps:

respectively feeding a plurality of types of fertilizer particles waiting for dehydration and drying and waiting for uniform mixing into an annular mixing groove;

step two, starting the central motor, so that the output shaft drives the rotary disc and the inner ring stirring pan body unit to rotate clockwise; meanwhile, the belt transmission unit drives the belt synchronizing wheel to enable the rotary drum and the rotary ring to rotate anticlockwise along the axis, so that the outer ring stirring pan body unit rotates anticlockwise along the axis of the outer ring stirring pan body unit; the inner ring stirring pan body unit and the outer ring stirring pan body unit move in opposite rotating directions, and the outer ring stirring pan body unit and the inner ring stirring pan body unit move in opposite rotating directions to enable the first stirring rods, the second stirring rods and the third stirring rods to rotate in a staggered manner, so that fertilizer particles to be uniformly mixed are gradually and uniformly mixed under the staggered rotary stirring of the first stirring rods, the second stirring rods and the third stirring rods; meanwhile, an electric heating device in the inner ring stirring pan body unit is started to enable the inner ring stirring pan body unit to continuously generate heat, and therefore a plurality of types of fertilizer particles are uniformly stirred in the annular stirring groove and the temperature of the fertilizer particles gradually rises to form hot fertilizer mixed particles;

step three, controlling the left telescopic rod and the right telescopic rod to do retraction movement, so that the left semicircle external stirring pan body unit and the right semicircle external stirring pan body unit do mutual distant movement; the left semicircle outer stirring pot body unit and the right semicircle outer stirring pot body unit move away from each other to enable the bottom of the left half part and the bottom of the right half part of the annular stirring groove to form a left crescent-shaped material leakage port and a right crescent-shaped material leakage port respectively, and therefore a proper amount of heated fertilizer mixed particles in the annular stirring groove are leaked downwards into the annular dehydration channel from the left crescent-shaped material leakage port and the right crescent-shaped material leakage port; fertilizer mixing particles which leak into the annular dehydration channel in a heating state are uniformly distributed at the bottom of the annular dehydration channel under the action of gravity, when the space in the annular dehydration channel is filled with one third of the volume by the hot fertilizer mixing particles, the left telescopic rod and the right telescopic rod are controlled to do gradually stretching motion, so that the left semicircle outer stirring pot body unit and the right semicircle outer stirring pot body unit are spliced into an outer ring stirring pot body unit with a whole circular ring structure again, and at the moment, a plurality of types of fertilizer particles waiting for dehydration and drying and being mixed are respectively fed into the annular stirring groove again;

fourthly, controlling and starting a central motor, enabling an output shaft to drive a rotary disc and an inner ring stirring pan body unit to do periodic clockwise rotation, pause, clockwise rotation and pause … intermittent rotation motion, enabling a plurality of stirring blades to do periodic clockwise rotation, pause, clockwise rotation and pause … intermittent rotation motion in an annular dehydration channel due to the fact that the stirring blades and the inner ring stirring pan body unit are synchronous, and enabling the lower ends of the stirring blades to continuously scoop hot mixed fertilizer particles standing at the bottom of the annular dehydration channel in the clockwise direction when the stirring blades do clockwise motion in the annular dehydration channel, so that the hot mixed fertilizer particles standing at the bottom of the annular dehydration channel climb upwards along an arc-shaped inclined plane of fertilizer particles on the upper surface of the stirring blades in the clockwise direction under the clockwise scoop motion of the stirring blades, when the hot mixed fertilizer particles on the upper surface of the stir-frying blade obliquely rise upwards to the position of the material leaking hole in the upper part of the stir-frying blade, the fertilizer particles which rise to the height of the upper part of the stir-frying blade can leak downwards through the material leaking hole and fall back to the bottom of the annular dehydration channel again, so that the hot fertilizer particles which are stood at the bottom of the annular dehydration channel are continuously lifted and then fall down again, and the preliminary stirring effect of the fertilizer particles in the annular dehydration channel is realized; when the inner ring stirring pan body unit pauses on the basis of clockwise rotation, the stirring and frying blades pause, and fertilizer particles which are in upward climbing motion on the climbing arc-shaped inclined plane of the particles of the stirring and frying blades can be thrown out forwards for a distance under the action of inertia and then fall down to the bottom of the annular dehydration channel again; thereby realizing the further billowing effect of the fertilizer particles in the annular dehydration channel; the final effect is that the mixed fertilizer particles in the heating state continuously surge in the annular dehydration channel, so that a dynamic fluffy state is formed;

meanwhile, an axial flow negative pressure fan in the axial flow negative pressure fan barrel is started, and because the air suction opening of the axial flow negative pressure fan is upward, the operation of the axial flow negative pressure fan can enable the air negative pressure cavity to continuously form negative pressure, so that the air in the annular dehydration channel is continuously and continuously made to flow in the direction gradually approaching the axis of the annular dehydration channel under the negative pressure action in the air negative pressure cavity, and finally the air is sucked into the air negative pressure cavity through the annular hot air guide outlet and is downwards discharged through the axial flow negative pressure fan barrel; meanwhile, external air can be continuously fed into the annular dehydration channel through the annular air inlet under the action of negative pressure, the comprehensive effect is that the air in the annular dehydration channel flows in the centripetal direction gradually close to the axis of the annular dehydration channel all the time, and because moisture volatilization gaps are generated between two adjacent particles in the annular dehydration channel in the process of billowing and the contact area of the fertilizer particles and the air in the annular dehydration channel is increased, the air flowing through the annular dehydration channel smoothly flows through the gaps between the adjacent fertilizer particles, the moisture on the hot fertilizer particles is promoted to be volatilized in an accelerated manner, and the air flowing in the centripetal direction gradually close to the axis of the annular dehydration channel in the annular dehydration channel plays a role in rapidly taking away heat, so that the fertilizer particles billowed in the annular dehydration channel are rapidly cooled; thereby playing the roles of accelerating volatilization, preventing adhesion and promoting quick cooling;

fifthly, controlling a lifting rod of the lifter, driving the outer ring dehydration pot body unit to descend by the lifting rod, forming a circular ring-shaped material leakage port between the inner ring dehydration pot body unit and the outer ring dehydration pot body unit, and enabling fertilizer particles in the circular dehydration channel to leak into the hopper cavity from the circular ring-shaped material leakage port; and finally, uniformly stirring, dehydrating and cooling the mixed fertilizer particles, and leaking the mixed fertilizer particles into the material receiving device through the material leaking pipe.

Has the advantages that: the device has a simple structure, and has the functions of uniformly mixing, dehydrating and rapidly cooling the compound fertilizer particles.

Drawings

FIG. 1 is a schematic view of the overall structure of the device;

FIG. 2 is a cross-sectional view of FIG. 2 (initial state);

FIG. 3 is a schematic view showing that the lifting rod drives the outer ring dehydration boiler unit to descend on the basis of FIG. 2, so that a circular discharge port is formed between the inner ring dehydration boiler unit and the outer ring dehydration boiler unit (see step five);

FIG. 4 is an enlarged partial view of the state of FIG. 2;

FIG. 5 is an enlarged partial view of the state of FIG. 3;

FIG. 6 is a schematic diagram of the left crescent-shaped discharge opening and the right crescent-shaped discharge opening formed at the bottom of the annular stirring groove by the mutual distance movement of the left semicircle outer stirring pan body unit and the right semicircle outer stirring pan body unit on the basis of FIG. 4 (see step three);

FIG. 7 is a schematic upper part of the apparatus;

FIG. 8 is a cross-sectional view of FIG. 7;

FIG. 9 is a schematic view of the left crescent shaped material discharge opening and the right crescent shaped material discharge opening formed at the bottom of the circular stirring groove by the mutual distance movement of the left semicircle external stirring pan body unit and the right semicircle external stirring pan body unit on the basis of FIG. 7 (see step three);

FIG. 10 is a cross-sectional view of FIG. 9;

FIG. 11 is a schematic structural view of a rotary disk and inner ring stirring pan body unit;

fig. 12 is a partially enlarged, broken away schematic view of fig. 11.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The blending and dewatering system for compound fertilizer particle production shown in the attached drawings 1 to 12 comprises a receiving funnel 13, wherein the lower end of the receiving funnel 13 is provided with a vertical material leaking pipe 16, and particles in a hopper cavity 15 in the receiving funnel 13 can leak downwards through the material leaking pipe 16; the outer wall of the lower end of the material leakage pipe 16 is fixedly connected with a fixed bracket 25; the outer wall of the material leakage pipe 16 is rotatably provided with a rotary drum 47 through a bearing 26;

a rotary ring 12 is coaxially arranged above the material receiving funnel 13, a plurality of connecting arms 49 are circumferentially distributed around the material receiving funnel 13 in an array manner, and the upper end and the lower end of each connecting arm 49 are respectively fixedly connected with the rotary ring 12 and the rotary cylinder 47, so that the rotary ring 12 synchronously rotates along with the rotary cylinder 47;

a left semicircle external stirring pot body unit 1.1 and a right semicircle external stirring pot body unit 1.2 are arranged in the enclosing range of the rotary ring 12, a ring structure formed by combining the left semicircle external stirring pot body unit 1.1 and the right semicircle external stirring pot body unit 1.2 is marked as an outer ring stirring pot body unit 1, the axis of the ring body of the outer ring stirring pot body unit 1 is coaxial with the axis of the rotary ring 12, and the outer ring stirring pot body unit 1 synchronously rotates along with the rotary ring 12;

the rotary drum 47 is coaxially and synchronously provided with a belt synchronizing wheel 48, and the driving device can drive the belt synchronizing wheel 48 through the belt transmission unit 46, so that the rotary drum 47 rotates.

The inner ring is coaxially arranged in the enclosing range of the outer ring stirring pan body unit 1 and uniformly stirs the pan body unit 6, an electric heating device 741 is uniformly arranged in the inner ring stirring pan body unit 6, and the electric heating device 741 can enable the inner ring stirring pan body unit 6 to generate heat.

The outer ring uniform mixing pot body unit 1 and the inner ring uniform mixing pot body unit 6 can relatively rotate coaxially, the whole formed by combining the outer ring uniform mixing pot body unit 1 and the inner ring uniform mixing pot body unit 6 is marked as an annular uniform mixing pot 5, the longitudinal section of a ring body of the annular uniform mixing pot 5 is a semicircle with an upward opening, and an annular uniform mixing groove 7 with a semicircular longitudinal section is formed in the pot of the annular uniform mixing pot 5;

a plurality of horizontal first stirring rods 61 and a plurality of horizontal second stirring rods 62 which are distributed in a circumferential array are distributed above and below the inner wall of the inner ring stirring pan body unit 6; a plurality of horizontal third stirring rods 63 are distributed on the inner wall of the outer ring stirring pot body unit 1 in a circumferential array; the third stirring rods 63 are positioned between the first stirring rods 61 and the second stirring rods 62; the inner ring stirring pan body unit 6 and the outer ring stirring pan body unit 1 can rotate in opposite directions, so that the first stirring rods 61, the second stirring rods 62 and the third stirring rods 63 can rotate in a staggered manner.

The outer ring stirring pan body unit 1 and the inner ring stirring pan body unit 6 are in sliding fit, or a first gap 70 is formed between the outer ring stirring pan body unit 1 and the inner ring stirring pan body unit 6, and the first gap 70 is smaller than the diameter of fertilizer particles.

The inner ring stirring pot further comprises a horizontal rotary disc 8 which is coaxial with the annular stirring pot 5, the outer edge of the rotary disc 8 is fixedly connected with the contour of the inner ring of the ring body of the inner ring stirring pot body unit 6 in an integrated manner, and an air negative pressure cavity 41 is formed in the enclosing range of the inner ring stirring pot body unit 6 on the lower side of the rotary disc 8; the upper part of the rotary disk 8 also comprises a central motor 28, the central motor 28 is fixed on the motor bracket 23, and the lower end of an output shaft 9 of the central motor 28 is fixedly connected with the rotary disk 8 coaxially; the central motor 28 can drive the rotary disk 8 and the inner ring stirring pan body unit 6 to rotate through the output shaft 9.

An annular dehydration pot 4 is coaxially arranged right below the annular stirring pot 5, the longitudinal section of a ring body of the annular dehydration pot 4 is a semicircle with an upward opening, and an annular dehydration channel 32 with a crescent-shaped section is formed between the annular stirring pot 5 and the annular dehydration pot 4;

the outer ring of the annular dehydration pot 4 is integrally provided with an annular pot outer edge 50, and an annular air supply port 34 is formed by the interval between the annular pot outer edge 50 and the outer side cambered surface of the outer ring stirring pot body unit 1; the outer ring body of the annular dehydration channel 32 is communicated with the outside through an air supplement port 34;

the space between the inner ring of the ring body of the annular dehydration boiler 4 and the outer arc surface of the inner ring stirring boiler body unit 6 forms a ring-shaped hot air outlet 40, and the ring-shaped hot air outlet 40 is communicated with the inner ring of the ring body of the annular dehydration channel 32 and the air negative pressure cavity 41; an axial flow negative pressure fan cylinder 45 is coaxially and fixedly arranged in the enclosing range of the ring body of the annular dehydration boiler 4, and the upper end of the axial flow negative pressure fan cylinder 45 is fixedly connected with the upper end inner ring of the annular dehydration boiler 4 through a ring body connecting piece 44; an axial flow negative pressure fan 42 is arranged in a vertical air guide channel 43 in the axial flow negative pressure fan barrel 45, an air suction port of the axial flow negative pressure fan 42 is upward, and negative pressure is formed in the air negative pressure cavity 41 due to the operation of the axial flow negative pressure fan 42; the lower end of the axial flow negative pressure fan cylinder 45 is in supporting connection with the inner wall of the material receiving hopper 13 through a plurality of fan supporting arms 14.

A pair of horizontal left retractors 80.1 is fixedly installed on the inner side of the left end of the rotary ring 12, and a pair of horizontal right retractors 80.2 is fixedly installed on the inner side of the right end of the rotary ring 12; the tail end of a left telescopic rod 90.1 of the left telescopic device 80.1 is fixedly connected to the outer wall of the left semicircle outer stirring pot body unit 1.1, and the tail end of a right telescopic rod 90.2 of the right telescopic device 80.2 is fixedly connected to the outer wall of the right semicircle outer stirring pot body unit 1.2; the retraction of the left telescopic rod 90.1 and the right telescopic rod 90.2 can lead the left semicircle external stirring pan body unit 1.1 and the right semicircle external stirring pan body unit 1.2 to move away from each other; the left semicircle outer stirring pot body unit 1.1 and the right semicircle outer stirring pot body unit 1.2 move away from each other, so that the left half part bottom and the right half part bottom of the annular stirring groove 7 respectively form a left crescent-shaped material leakage opening 20.1 and a right crescent-shaped material leakage opening 20.2; the fertilizer particles which leak downwards from the left crescent-shaped leakage opening 20.1 and the right crescent-shaped leakage opening 20.2 just fall into the annular dehydration channel 32;

the annular dehydration pot 4 is formed by combining an inner ring dehydration pot body unit 2 and an outer ring dehydration pot body unit 3 which are coaxial, and the inner ring dehydration pot body unit 2 is matched with the inner ring of the outer ring dehydration pot body unit 3 in a sliding way; a pair of vertical lifters 17 is fixedly installed on the outer wall of the material receiving funnel 13, the upper ends of the lifting rods 18 of the lifters 17 are fixedly connected with the outer ring dehydration pot unit 3, the lifters 17 can drive the outer ring dehydration pot unit 3 to descend through the lifting rods 18, so that a circular ring-shaped material leakage port 11 is formed between the inner ring dehydration pot unit 2 and the outer ring dehydration pot unit 3, and fertilizer particles in the circular ring dehydration channel 32 can leak from the circular ring-shaped material leakage port 11 to the hopper cavity 15;

a plurality of stir-frying blades 10 are distributed in the annular dehydration channel 32 in a circumferential array; the stir-frying blade 10 is of an arc slope-shaped metal sheet structure, the upper surface of the stir-frying blade 10 is a downward-concave particle climbing arc-shaped inclined surface, the contour line 10.1 at the lower end of the particle climbing arc-shaped inclined surface is in sliding and tangent fit with the inner wall of the arc surface of the annular dehydration boiler 4, the upper part of the particle climbing arc-shaped inclined surface of the stir-frying blade 10 is provided with a material leakage hole 29 in a hollow manner, the upper end of each stir-frying blade 10 is fixedly connected with a horizontal support beam 30, the tail end of the support beam 30 is fixed on a beam seat 31, and the beam seat 31 is fixed on the outer wall of the inner ring stirring boiler body unit 6, so that each stir-frying blade 10 moves synchronously along with the inner ring stirring.

The working method and the working principle are as follows:

the working method of the uniform stirring and dewatering system for producing the compound fertilizer particles comprises the following steps:

the method comprises the following steps:

firstly, respectively feeding a plurality of types of fertilizer particles waiting for dehydration and drying and waiting for uniform mixing into an annular mixing groove 7;

step two, starting the central motor 28, so that the output shaft 9 drives the rotary disk 8 and the inner ring stirring pan body unit 6 to rotate clockwise; meanwhile, the belt transmission unit 46 drives the belt synchronizing wheel 48 to make the rotary drum 47 and the rotary ring 12 rotate anticlockwise along the axis, so that the outer ring stirring pan body unit 1 rotates anticlockwise along the axis; thereby enabling the inner ring stirring pan body unit 6 and the outer ring stirring pan body unit 1 to move in opposite rotating directions, enabling the outer ring stirring pan body unit 1 and the inner ring stirring pan body unit 6 to move in opposite rotating directions so as to enable the first stirring rods 61, the second stirring rods 62 and the third stirring rods 63 to do staggered rotary motion, and further enabling a plurality of types of fertilizer particles to be uniformly mixed to be gradually and uniformly mixed under the staggered rotary stirring of the first stirring rods 61, the second stirring rods 62 and the third stirring rods 63; meanwhile, the electric heating device 741 in the inner ring stirring pan body unit 6 is started to make the inner ring stirring pan body unit 6 continuously generate heat, so that a plurality of types of fertilizer particles are uniformly stirred in the annular stirring groove 7 and the temperature is gradually increased to form hot fertilizer mixed particles;

step three, controlling the left telescopic rod 90.1 and the right telescopic rod 90.2 to do retraction movement, so that the left semicircle external stirring pot body unit 1.1 and the right semicircle external stirring pot body unit 1.2 do movement away from each other; the left semicircle outer stirring pot body unit 1.1 and the right semicircle outer stirring pot body unit 1.2 move away from each other to enable the bottom of the left half part and the bottom of the right half part of the annular stirring groove 7 to form a left crescent-shaped material leakage opening 20.1 and a right crescent-shaped material leakage opening 20.2 respectively, and further enable a proper amount of fertilizer mixed particles heated in the annular stirring groove 7 to leak downwards from the left crescent-shaped material leakage opening 20.1 and the right crescent-shaped material leakage opening 20.2 to the annular dehydration channel 32; fertilizer mixing particles which leak into the annular dehydration channel 32 in a heating state are uniformly distributed at the bottom of the annular dehydration channel 32 under the action of gravity, when the space in the annular dehydration channel 32 is filled with one third of the volume of the hot fertilizer mixing particles, the left telescopic rod 90.1 and the right telescopic rod 90.2 are controlled to do gradually extending movement, so that the left semicircle outer stirring pan body unit 1.1 and the right semicircle outer stirring pan body unit 1.2 are spliced into an outer ring stirring pan body unit 1 with a full ring structure again, and then a plurality of types of fertilizer particles waiting for dehydration and drying and waiting for mixing are respectively fed into the annular stirring groove 7 again;

fourthly, controlling the central motor 28 to be started, enabling the output shaft 9 to drive the rotary disk 8 and the inner ring stirring pan body unit 6 to do periodic clockwise rotation, pause, clockwise rotation and pause … intermittent rotation movement, enabling the plurality of stirring blades 10 to do periodic clockwise rotation, pause, clockwise rotation and pause … intermittent rotation movement in the annular dehydration channel 32 due to the fact that the stirring blades 10 and the inner ring stirring pan body unit 6 are synchronous, and enabling the lower ends of the stirring blades 10 to continuously scoop hot mixed fertilizer particles standing at the bottom of the annular dehydration channel 32 clockwise when the plurality of stirring blades 10 do clockwise movement in the annular dehydration channel 32, so that the hot mixed fertilizer particles standing at the bottom of the annular dehydration channel 32 ascend obliquely upwards along the ascending arc-shaped inclined plane of the particles at the upper surface of the stirring blades 10 under the clockwise scooping action of the stirring blades 10, when the hot mixed fertilizer particles on the upper surface of the stir-frying blade 10 obliquely rise to the position of the material leaking hole 29 on the upper part of the stir-frying blade 10, the fertilizer particles rising to the height of the upper part of the stir-frying blade 10 can leak downwards through the material leaking hole 29 and fall back to the bottom of the annular dehydration channel 32 again, so that the hot fertilizer particles standing at the bottom of the annular dehydration channel 32 are continuously lifted and then fall down again, and the primary stirring effect of the fertilizer particles in the annular dehydration channel 32 is realized; when the inner ring stirring pan body unit 6 is suspended on the basis of clockwise rotation, the stirring and frying blade 10 is suspended, and the fertilizer particles which are originally in ascending movement on the ascending arc-shaped inclined plane of the particles of the stirring and frying blade 10 are thrown out forwards for a certain distance under the action of inertia and then fall down to the bottom of the annular dehydration channel 32 again; thereby achieving a further billowing effect of the fertilizer granules in the annular dewatering channel 32; the final effect is that the mixed fertilizer particles in the heating state continuously surge in the annular dehydration channel 32, so as to form a dynamic fluffy state;

meanwhile, the axial flow negative pressure fan 42 in the axial flow negative pressure fan barrel 45 is started, and because the suction opening of the axial flow negative pressure fan 42 is upward, the operation of the axial flow negative pressure fan 42 can enable the air negative pressure cavity 41 to continuously form negative pressure, so that the gas in the annular dehydration channel 32 is continuously and continuously made to flow in the direction gradually approaching the axis of the annular dehydration channel 32 under the negative pressure action in the air negative pressure cavity 41, and finally is sucked into the air negative pressure cavity 41 through the annular hot gas guide outlet 40 and is discharged downwards through the axial flow negative pressure fan barrel 45; at the same time, the external air is continuously supplied into the annular dewatering channel 32 through the annular air supply port 34 under the action of negative pressure, the comprehensive effect is that the gas in the annular dehydration channel 32 always flows in the centripetal direction gradually approaching the axis of the annular dehydration channel 32, because a moisture volatilization gap is generated between two adjacent grains in the annular dehydration channel 32 during the billowing process, the contact area of the fertilizer grains and the air in the annular dehydration channel 32 is increased, thereby enabling the air flowing through the annular dehydration channel 32 to smoothly flow through the gaps between the adjacent fertilizer granules, promoting the accelerated volatilization of the moisture on the hot fertilizer granules, and the gas flowing in the annular dehydration channel 32 in the centripetal direction gradually close to the axis of the annular dehydration channel 32 plays a role in quickly taking away heat, so that fertilizer particles billowed in the annular dehydration channel 32 are quickly cooled; thereby playing the roles of accelerating volatilization, preventing adhesion and promoting quick cooling;

fifthly, the lifting rod 18 of the lifter 17 is controlled, so that the lifting rod 18 drives the outer ring dehydration pot unit 3 to descend, a circular ring-shaped material leakage port 11 is formed between the inner ring dehydration pot unit 2 and the outer ring dehydration pot unit 3, and fertilizer particles in the circular dehydration channel 32 can leak from the circular ring-shaped material leakage port 11 to the hopper cavity 15; finally, the mixed fertilizer particles which are uniformly stirred, dehydrated and cooled leak out to the receiving device through the material leaking pipe 16.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.

Claims

1. The stirring and dewatering system for producing compound fertilizer granules is characterized in that: the particle filter comprises a material receiving funnel (13), wherein the lower end of the material receiving funnel (13) is provided with a vertical material leaking pipe (16), and particles in a hopper cavity (15) in the material receiving funnel (13) can leak downwards through the material leaking pipe (16); the outer wall of the lower end of the material leakage pipe (16) is fixedly connected with a fixed support (25); the outer wall of the material leakage pipe (16) is rotatably provided with a rotary drum (47) through a bearing (26);

a rotary ring (12) is coaxially arranged above the material receiving funnel (13), a plurality of connecting arms (49) are distributed on the periphery of the material receiving funnel (13) in a circumferential array, and the upper end and the lower end of each connecting arm (49) are respectively fixedly connected with the rotary ring (12) and a rotary cylinder (47), so that the rotary ring (12) synchronously rotates along with the rotary cylinder (47);

a left semicircle external stirring pot body unit (1.1) and a right semicircle external stirring pot body unit (1.2) are arranged in the enclosing range of the rotary ring (12), a circular ring structure formed by combining the left semicircle external stirring pot body unit (1.1) and the right semicircle external stirring pot body unit (1.2) is marked as an outer ring stirring pot body unit (1), the axis of a ring body of the outer ring stirring pot body unit (1) is coaxial with the axis of the rotary ring (12), and the outer ring stirring pot body unit (1) synchronously rotates along with the rotary ring (12);

the rotary drum (47) is coaxially and synchronously provided with a belt synchronizing wheel (48), and the driving device can drive the belt synchronizing wheel (48) through a belt transmission unit (46) so as to rotate the rotary drum (47).

2. The blending and dewatering system for compound fertilizer granule production of claim 1, characterized in that: the outer ring is provided with the inner ring and is stirred uniformly pot body unit (6) with the axle center in the enclosed range of the pot body unit (1) that stirs uniformly, the inner ring is stirred uniformly in pot body unit (6) and is evenly provided with electric heating device (741), electric heating device (741) enable the inner ring is stirred uniformly pot body unit (6) and is generated heat.

3. The blending and dewatering system for compound fertilizer granule production of claim 2, characterized in that: the outer ring uniform mixing pot body unit (1) and the inner ring uniform mixing pot body unit (6) can rotate coaxially and relatively, the whole formed by combining the outer ring uniform mixing pot body unit (1) and the inner ring uniform mixing pot body unit (6) is marked as an annular uniform mixing pot (5), the longitudinal section of a ring body of the annular uniform mixing pot (5) is a semicircle with an upward opening, and an annular uniform mixing groove (7) with a semicircular longitudinal section is formed in the ring body of the annular uniform mixing pot (5);

a plurality of horizontal first stirring rods (61) and a plurality of horizontal second stirring rods (62) are distributed on the upper and lower parts of the inner wall of the inner ring stirring pan body unit (6) in a circumferential array; a plurality of horizontal third stirring rods (63) are distributed on the inner wall of the outer ring stirring pot body unit (1) in a circumferential array manner; the third stirring rods (63) are positioned between the first stirring rods (61) and the second stirring rods (62); the outer ring stirring pan body unit (1) and the inner ring stirring pan body unit (6) do opposite rotation movement to enable the first stirring rods (61), the second horizontal stirring rods (62) and the third horizontal stirring rods (63) to do staggered rotation movement.

4. The blending and dewatering system for compound fertilizer granule production of claim 3, characterized in that: the outer ring stirring pot body unit (1) and the inner ring stirring pot body unit (6) are in sliding fit, or a first gap (70) is formed between the outer ring stirring pot body unit (1) and the inner ring stirring pot body unit (6), and the first gap (70) is smaller than the diameter of fertilizer particles.

5. The blending and dewatering system for compound fertilizer granule production of claim 4, characterized in that:

the inner ring stirring pan body unit is characterized by further comprising a horizontal rotary disc (8) which is coaxial with the annular stirring pan (5), wherein the outer edge of the rotary disc (8) is fixedly connected with the outline of the inner ring of the ring body of the inner ring stirring pan body unit (6) in an integrated manner, and an air negative pressure cavity (41) is formed in the enclosing range of the inner ring stirring pan body unit (6) on the lower side of the rotary disc (8); the upper part of the rotary disc (8) also comprises a central motor (28), the central motor (28) is fixed on the motor bracket (23), and the lower end of an output shaft (9) of the central motor (28) is fixedly connected with the rotary disc (8) coaxially; the central motor (28) can drive the rotary disc (8) and the inner ring stirring pan body unit (6) to rotate through the output shaft (9).

6. The blending and dewatering system for compound fertilizer granule production of claim 4, characterized in that: an annular dehydration pot (4) is coaxially arranged right below the annular stirring pot (5), the longitudinal section of a ring body of the annular dehydration pot (4) is a semicircle with an upward opening, and an annular dehydration channel (32) with a crescent-shaped section is formed between the annular stirring pot (5) and the annular dehydration pot (4);

the outer ring of the annular dehydration pot (4) is integrally provided with an annular pot outer edge (50), and an annular air supplement opening (34) is formed by the interval between the annular pot outer edge (50) and the outer side cambered surface of the outer ring stirring pot body unit (1); the outer ring of the ring body of the annular dehydration channel (32) is communicated with the outside through an air supplement port (34);

an annular hot air outlet (40) is formed by the space between the inner ring of the annular body of the annular dehydration boiler (4) and the outer arc surface of the inner ring stirring boiler body unit (6), and the annular hot air outlet (40) is communicated with the inner ring of the annular body of the annular dehydration channel (32) and the air negative pressure cavity (41); an axial flow negative pressure fan cylinder (45) is fixedly arranged coaxially within the enclosing range of the ring body of the annular dehydration boiler (4), and the upper end of the axial flow negative pressure fan cylinder (45) is fixedly connected with the inner ring at the upper end of the annular dehydration boiler (4) through a ring body connecting piece (44); an axial flow negative pressure fan (42) is arranged in a vertical air guide channel (43) in the axial flow negative pressure fan cylinder (45), an air suction port of the axial flow negative pressure fan (42) faces upwards, and negative pressure is formed in the air negative pressure cavity (41) due to the operation of the axial flow negative pressure fan (42); the lower end of the axial flow negative pressure fan cylinder (45) is in supporting connection with the inner wall of the material receiving hopper (13) through a plurality of fan supporting arms (14).

7. The blending and dewatering system for compound fertilizer granule production of claim 6, characterized in that: a pair of horizontal left retractors (80.1) is fixedly installed on the inner side of the left end of the rotary ring (12), and a pair of horizontal right retractors (80.2) is fixedly installed on the inner side of the right end of the rotary ring (12); the tail end of a left telescopic rod (90.1) of the left telescopic device (80.1) is fixedly connected to the outer wall of the left semicircle outer stirring pot body unit (1.1), and the tail end of a right telescopic rod (90.2) of the right telescopic device (80.2) is fixedly connected to the outer wall of the right semicircle outer stirring pot body unit (1.2); the left telescopic rod (90.1) and the right telescopic rod (90.2) retract to enable the left semicircle external stirring pot body unit (1.1) and the right semicircle external stirring pot body unit (1.2) to move away from each other; the left semicircle outer stirring pot body unit (1.1) and the right semicircle outer stirring pot body unit (1.2) move away from each other, so that the left half bottom and the right half bottom of the annular stirring groove (7) respectively form a left crescent-shaped material leakage port (20.1) and a right crescent-shaped material leakage port (20.2); fertilizer particles which leak downwards from the left crescent-shaped material leaking port (20.1) and the right crescent-shaped material leaking port (20.2) just fall into the annular dehydration channel (32);

the annular dehydration pot (4) is formed by combining an inner ring dehydration pot body unit (2) and an outer ring dehydration pot body unit (3) which are coaxial, and the inner ring dehydration pot body unit (2) is matched with the inner ring of the outer ring dehydration pot body unit (3) in a sliding manner; a pair of vertical lifters (17) is fixedly mounted on the outer wall of the material receiving funnel (13), the upper ends of lifting rods (18) of the lifters (17) are fixedly connected with the outer ring dehydration pot body unit (3), the lifters (17) can drive the outer ring dehydration pot body unit (3) to descend through the lifting rods (18), so that a circular ring-shaped material leakage opening (11) is formed between the inner ring dehydration pot body unit (2) and the outer ring dehydration pot body unit (3), and fertilizer particles in the circular dehydration channel (32) can leak out of the circular ring-shaped material leakage opening (11) into the hopper cavity (15);

a plurality of stir-frying blades (10) are distributed in the annular dehydration channel (32) in a circumferential array; the stir-frying blade (10) is of an arc slope-shaped metal sheet structure, the upper surface of the stir-frying blade (10) is a downward-concave particle climbing arc-shaped inclined surface, the contour line (10.1) of the lower end of the particle climbing arc-shaped inclined surface is in sliding tangent fit with the inner wall of the arc surface of the annular dehydration pot (4), the upper part of the particle climbing arc-shaped inclined surface of the stir-frying blade (10) is provided with a material leakage hole (29) in a hollowed-out mode, the upper end of each stir-frying blade (10) is fixedly connected with a horizontal support beam (30), the tail end of each support beam (30) is fixed on a beam seat (31), and the beam seat (31) is fixed on the outer wall of the inner ring stirring pot body unit (6), so that each stir-frying blade (10) can move synchronously along with the inner ring stirring pot body unit.

8. The method for operating the blending and dewatering system for compound fertilizer granule production of claim 7, characterized in that:

the method comprises the following steps:

firstly, respectively feeding a plurality of types of fertilizer particles waiting for dehydration and drying and waiting for uniform mixing into an annular mixing groove (7);

step two, starting the central motor (28), so that the output shaft (9) drives the rotary disc (8) and the inner ring stirring pan body unit (6) to rotate clockwise; meanwhile, the belt transmission unit (46) drives the belt synchronizing wheel (48) to enable the rotary drum (47) and the rotary ring (12) to rotate anticlockwise along the axis, and further enable the outer ring stirring pan body unit (1) to rotate anticlockwise along the axis per se; thereby enabling the inner ring stirring pan body unit (6) and the outer ring stirring pan body unit (1) to move in opposite rotating directions, and enabling the outer ring stirring pan body unit (1) and the inner ring stirring pan body unit (6) to move in opposite rotating directions so as to enable a plurality of first stirring rods (61), a plurality of horizontal second stirring rods (62) and a plurality of horizontal third stirring rods (63) to do staggered rotary motion, thereby enabling a plurality of types of fertilizer particles to be uniformly mixed to be gradually and uniformly mixed under the staggered rotary stirring of the first stirring rods (61), the second stirring rods (62) and the third stirring rods (63); meanwhile, an electric heating device (741) in the inner ring stirring pan body unit (6) is started to enable the inner ring stirring pan body unit (6) to continuously generate heat, and then a plurality of types of fertilizer particles are stirred uniformly in the annular stirring groove (7) and simultaneously the temperature is gradually increased to form hot fertilizer mixed particles;

step three, controlling the left telescopic rod (90.1) and the right telescopic rod (90.2) to do retraction movement, so that the left semicircle external stirring pot body unit (1.1) and the right semicircle external stirring pot body unit (1.2) do movement away from each other; the left semicircle outer stirring pan body unit (1.1) and the right semicircle outer stirring pan body unit (1.2) move away from each other to enable the bottom of the left half part and the bottom of the right half part of the annular stirring groove (7) to form a left crescent-shaped material leakage opening (20.1) and a right crescent-shaped material leakage opening (20.2) respectively, and further enable a proper amount of heated fertilizer mixed particles in the annular stirring groove (7) to leak downwards from the left crescent-shaped material leakage opening (20.1) and the right crescent-shaped material leakage opening (20.2) to the annular dehydration channel (32); fertilizer mixed particles which leak into the annular dehydration channel (32) in a heating state are uniformly distributed at the bottom of the annular dehydration channel (32) under the action of gravity, when the space in the annular dehydration channel (32) is filled with one third of the volume of the hot fertilizer mixed particles, a left telescopic rod (90.1) and a right telescopic rod (90.2) are controlled to do gradually extending movement, so that the left semicircle outer stirring pot body unit (1.1) and the right semicircle outer stirring pot body unit (1.2) are spliced into an outer ring stirring pot body unit (1) with a whole ring structure, and at the moment, a plurality of types of fertilizer particles waiting for dehydration and drying and uniformly mixing are respectively dropped into the annular stirring groove (7);

fourthly, controlling and starting a central motor (28) to enable an output shaft (9) to drive a rotary disk (8) and an inner ring stirring pan body unit (6) to do periodic clockwise rotation, pause, clockwise rotation and pause … intermittent rotary motion, wherein the stirring and frying blades (10) and the inner ring stirring pan body unit (6) are synchronous, so that a plurality of stirring and frying blades (10) do periodic clockwise rotation, pause, clockwise rotation and pause … intermittent rotary motion in an annular dehydration channel (32), when the stirring and frying blades (10) do clockwise motion in the annular dehydration channel (32), the lower ends of the stirring and frying blades (10) continuously shovel hot mixed fertilizer particles standing at the bottom of the annular dehydration channel (32) along the clockwise direction, and the hot mixed fertilizer particles standing at the bottom of the annular dehydration channel (32) are shoveled along the stirring and frying blades (10) under the clockwise rotation of the stirring and frying blades (10) ) When the fertilizer particles on the upper surface climb upwards in an inclined manner on the arc-shaped inclined plane, the hot mixed fertilizer particles on the upper surface of the stir-frying blade (10) ascend upwards in an inclined manner to the position of the material leaking hole (29) on the upper part of the stir-frying blade (10), the fertilizer particles which ascend to the height of the upper part of the stir-frying blade (10) leak downwards through the material leaking hole (29) and fall back to the bottom of the annular dehydration channel (32), so that the hot fertilizer particles which are stood at the bottom of the annular dehydration channel (32) are continuously lifted and then fall down again, and the primary stirring effect of the fertilizer particles in the annular dehydration channel (32) is realized; when the inner ring stirring pan body unit (6) pauses on the basis of clockwise rotation, the stirring and frying blade (10) pauses, and fertilizer particles which are originally climbing up the arc-shaped inclined plane of the stirring and frying blade (10) are thrown out forwards for a distance under the action of inertia and then fall down to the bottom of the annular dehydration channel (32) again; thereby realizing the further billowing effect of the fertilizer particles in the annular dehydration channel (32); the final effect is that the mixed fertilizer particles in the heating state continuously surge in the annular dehydration channel (32) to form a dynamic fluffy state;

meanwhile, an axial flow negative pressure fan (42) in an axial flow negative pressure fan cylinder (45) is started, and as an air suction port of the axial flow negative pressure fan (42) faces upwards, the axial flow negative pressure fan (42) can continuously form negative pressure in an air negative pressure cavity (41), so that gas in the annular dehydration channel (32) is continuously and continuously made to flow in a direction gradually approaching to the axis of the annular dehydration channel (32) under the action of negative pressure in the air negative pressure cavity (41), and is finally sucked into the air negative pressure cavity (41) through an annular hot gas guide outlet (40) and is downwards discharged through the axial flow negative pressure fan cylinder (45); meanwhile, external air can be continuously supplied into the annular dehydration channel (32) through the annular air supply opening (34) under the action of negative pressure, the comprehensive effect is that the air in the annular dehydration channel (32) always flows in the centripetal direction gradually close to the axis of the annular dehydration channel (32), as a moisture volatilization gap is generated between two adjacent particles in the annular dehydration channel (32) in the process of billowing, and the contact area between the fertilizer particles and the air in the annular dehydration channel (32) is increased, the air flowing through the annular dehydration channel (32) smoothly flows through the gap between the adjacent fertilizer particles, the moisture on the hot fertilizer particles is promoted to be volatilized in an accelerated manner, and the air flowing in the centripetal direction gradually close to the axis of the annular dehydration channel (32) in the annular dehydration channel (32) has the effect of quickly taking away heat, rapidly cooling the fertilizer particles tumbled in the annular dewatering channel (32); thereby playing the roles of accelerating volatilization, preventing adhesion and promoting quick cooling;

fifthly, controlling a lifting rod (18) of a lifter (17), driving an outer ring dehydration pot body unit (3) to descend by the lifting rod (18), forming a circular ring-shaped material leakage opening (11) between an inner ring dehydration pot body unit (2) and the outer ring dehydration pot body unit (3), and enabling fertilizer particles in an annular dehydration channel (32) to leak out of the circular ring-shaped material leakage opening (11) to a hopper cavity (15); finally, the mixed fertilizer particles which are uniformly stirred, dehydrated and cooled leak out to the receiving device through a material leaking pipe (16).