CN219593625U - Conditioner for producing high-proportion fresh meat pet puffed food - Google Patents

Abstract

A tempering device for producing high-proportion fresh meat pet puffed food comprises a shell and a screw, wherein the shell encloses a working cavity for accommodating mixed feed, the screw is arranged in the working cavity, and a feed inlet and a discharge outlet are also formed in the shell; the shell is provided with a first heating device which is physically isolated from the mixed feed in the conditioner and is used for heating the mixed feed. The tempering device for producing the high-proportion fresh meat pet puffed food adopts a physical isolation heating mode, heats the mixed feed through the tempering device shell and the screw rod in a heat conduction mode, solves the problems of introducing more moisture into the mixed feed, adopting air to heat the mixed feed with low efficiency and the like in the prior art, and has the advantages of uniform heating of the mixed feed, accurate temperature control, high heat transfer efficiency and the like.

Description

Conditioner for producing high-proportion fresh meat pet puffed food

Technical Field

The utility model belongs to the technical field of pet food processing, and relates to a conditioner for producing high-proportion fresh meat pet puffed food.

Background

Increasing the content ratio of fresh meat in the puffed pet food is a difficult problem which is difficult to overcome for a long time in the technical field of pet food processing, and the reason is as follows:

in the first aspect, the expander has stringent upper limits on the moisture content of the mixed feed, and once the mixed feed moisture content exceeds the expander equipment upper limit (typically 15% -35%), curing and expansion of the feed cannot be achieved. The water content of fresh meat is generally 70-80%, and in order to adjust the water content of the mixed feed of the bulking machine, the fresh meat and more starch dry materials are generally required to be mixed and tempered, so that the water content requirement of the bulking machine on the mixed feed can be met. The content of fresh meat in the puffed pet food produced by the method can only reach 30-35% at the highest, and the improvement of the fresh meat adding proportion in the pet food is severely limited.

In a second aspect, to increase the nutritional profile of pet foods, it is desirable to maintain fresh meat at a temperature between-4 and 56 ℃ throughout the process until the process is completed once in the expander. This is because fresh meat can maintain an optimal nutritional state in this temperature range. If the temperature is lower than-4 ℃, the water in the fresh meat generates ice crystals in the gaps of the muscle fibers and grows gradually, so that the muscle fiber protein is denatured; if the temperature is higher than 56 ℃, the protein in the muscle fiber will generate coagulation type denaturation. The denaturation of proteins can be regarded as a primary aging process, and the denatured proteins have poor fluidity and low solubility compared with the prior proteins, thereby affecting the effect of secondary aging. In particular, once fresh meat is denatured prematurely before entering the bulking machine, the pet food produced is not only poor in mouthfeel, but also has significantly reduced nutritional content. For example, pet foods produced from frozen meat, freeze-dried meat or meat meal have always been of a quality that is not comparable to pet foods made directly from fresh meat.

The Chinese patent of the utility model discloses a production system and a method for producing high-proportion fresh meat pet puffed food (patent number ZL 201810528772.0), and particularly discloses the utility model conception that an emulsifying and dehydrating device is adopted to dehydrate fresh meat, and hot air is introduced into a conditioner to heat feeding materials and the like. However, this solution still has the following problems: firstly, although the patent provides an utility model conception of dewatering fresh meat in the pretreatment process, only names and functions of an emulsifying and dewatering device are given, a specific structure or a working principle of the emulsifying and dewatering device is not disclosed, the device also does not belong to the prior art, and a person skilled in the art can not actually implement the technical scheme after reading the patent specification. Secondly, the patent proposes an utility model concept that hot steam is not adopted to heat the mixed feed to be puffed in the tempering process, so that moisture in the mixed feed is not additionally increased, and a specific scheme that hot air is adopted to heat the mixed feed in the tempering device is proposed, but in practical application, the hot air has very low specific gravity relative to the mixed feed and cannot be fully mixed with the minced meat mixed feed, so that the heat exchange capacity between the hot air and the minced meat mixed feed is very poor; and, because of the small heat capacity and poor heat conducting capacity of the hot air, the feed cannot be effectively heated in actual production. Meanwhile, the hot air is adopted to heat the feed in the conditioner, so that a large amount of gas components remain in the mixed feed, and the puffing forming of the mixed feed in the puffing machine is seriously affected.

Disclosure of Invention

The utility model aims to overcome one of the defects of the prior art and provides a conditioner for producing high-proportion fresh meat pet puffed food.

In order to achieve the purpose of the utility model, the following technical scheme is adopted:

a conditioner for producing high-proportion fresh meat pet puffed food comprises a shell 1 and a screw rod 2, wherein the shell 1 is enclosed to form a working cavity 3 for accommodating mixed feed, the screw rod 2 is arranged in the working cavity 3, and a feed inlet 14 and a discharge outlet 15 are also arranged on the shell 1; wherein, the shell 1 is provided with a first heating device which is physically isolated from the mixed feed in the conditioner and is used for heating the mixed feed.

Further, the first heating device has a structure that: an electric heating device arranged outside the shell 1.

Further, the first heating device has a structure that: the shell 1 is of a sandwich structure, and an electric heating device is arranged in the sandwich 11.

Further, the first heating device has a structure that: the shell 1 is of a sandwich structure, and a first energy carrying channel for the energy carrying fluid to circulate is arranged in the sandwich 11.

Further, the number of the first heating devices is 1 or more.

Further, a second heating device which is physically isolated from the mixed feed in the conditioner is arranged in the screw of the conditioner and is used for heating the mixed feed.

Further, the second heating device has a structure that: the screw rod 2 of the conditioner is internally provided with an axial hollow structure 13, and an electric heating device is arranged in the axial hollow structure.

Further, the second heating device has a structure that: the screw 2 of the conditioner is internally provided with a second energy carrying channel 13 for the circulation of energy carrying fluid along the axial direction.

Further, two ends of the screw rod 2 are communicated with a second energy-carrying fluid inlet 7 and a second energy-carrying fluid outlet 8 through a rotatable joint 6, so that energy-carrying fluid is introduced into the second energy-carrying channel 13.

Further, the number of the second heating devices is 1 or more.

The tempering device for producing the high-proportion fresh meat pet puffed food adopts a physical isolation heating mode, heats the mixed feed through the tempering device shell and the screw rod in a heat conduction mode, solves the problems of introducing more moisture into the mixed feed, adopting air to heat the mixed feed with low efficiency and the like in the prior art, and has the advantages of uniform heating of the mixed feed, accurate temperature control, high heat transfer efficiency and the like.

Drawings

FIG. 1 is a schematic view showing the overall structure of an apparatus for producing a high-ratio fresh meat pet puffed food in example 1;

FIG. 2 is a schematic view showing the overall structure of the fresh meat supplying apparatus of FIG. 1;

FIG. 3 is a schematic view showing the overall structure of a vacuum evaporation apparatus in example 1;

FIG. 4 is a cross-sectional view showing the overall structure of the vacuum evaporation apparatus in example 1;

FIG. 5 is an exploded view showing the overall structure of the vacuum evaporation apparatus in example 1;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

FIG. 7 is a schematic overall flow diagram of a method of producing a high ratio fresh meat pet puffed food disclosed in examples 2 and 5;

FIG. 8 is a schematic overall structure of another apparatus for producing high-ratio fresh meat pet puffed food disclosed in example 4;

FIG. 9 is a schematic diagram of the overall structure of a conditioner for producing high-ratio fresh-meat pet puffed food disclosed in example 7;

FIG. 10 is a schematic cross-sectional view showing the entire structure of the thermal refining apparatus of FIG. 9.

Detailed Description

An embodiment of a conditioner for producing a high-ratio fresh-meat pet puffed food according to the present utility model is further described below with reference to fig. 1 to 10. The conditioner for producing a high-ratio fresh meat pet puffed food of the present utility model is not limited to the description of the following examples.

The ratio, etc. described herein refer to "weight ratio" unless otherwise specified. For example, the "high-ratio fresh meat pet puffed food", wherein "ratio" means a ratio of an original weight of fresh meat to a total weight of all raw materials for making the pet puffed food; typically, the "proportion" of fresh meat in the pet expanded food is in excess of 50%, which can be considered to be "high proportion fresh meat".

Example 1:

the embodiment provides a device for producing high-proportion fresh meat pet puffed food.

As shown in fig. 1, the apparatus includes: fresh meat supply device 101, dry material supply device 102, conditioner 103, bulking machine 104 and post-treatment device 105; wherein the fresh meat supply device 101 is used for pretreating fresh meat and delivering the fresh meat to the conditioner 103; the dry material supply device 102 is used for preprocessing the dry material and delivering the dry material to the conditioner 103; the conditioner 103 is used for conditioning the fresh meat and the dry material to form mixed feeding and conveying the mixed feeding to the bulking machine 104; the expander 104 is configured to expand the mixed feed; the post-processing device 105 is used for cutting and drying the discharged material after the puffing by the puffing machine 104 to form pet food; the fresh meat supply device 101 comprises a vacuum evaporation device 106, wherein the working pressure of the vacuum evaporation device 106 is less than or equal to 16.5kpa, and the working temperature is less than or equal to 56 ℃; and under the working pressure and working temperature conditions, the vacuum evaporation equipment boils and evaporates the moisture in the fresh meat.

In the prior art, as the bulking machine can not be used for bulking the mixed feed with too high water content, and the water content in the fresh meat far exceeds the limit value which can be processed by the bulking machine, the prior equipment and process can not be used for producing the high-proportion fresh meat pet puffed food. The utility model concept of the embodiment is that after the water content of the fresh meat is reduced in the fresh meat pretreatment stage, the fresh meat is mixed with the dry material to prepare the mixed feed to be puffed, so that the adding proportion of the fresh meat is improved. If the methods of freeze-drying dehydration, high-temperature (over 56 ℃) baking dehydration and the like in the prior art are adopted, the protein in the fresh meat can be denatured, so that the produced pet food has poor taste and reduced nutritional ingredients. According to the technical scheme of low-temperature boiling evaporation, the environment pressure is reduced, so that the water in the fresh meat reaches the boiling condition under the conditions of low temperature (lower than 56 ℃) and low pressure (lower than the boiling point pressure of water at the low temperature), the low-temperature boiling effect is achieved, the rapid evaporation loss of the water in the fresh meat is realized, and the nutrition components and the quality of the fresh meat are not adversely affected in the whole process. Specifically, the fresh meat supply device 101, the dry material supply device 102, the conditioner 103, the bulking machine 104 and the post-treatment device 105 in this embodiment may all adopt the prior art, and the main difference is that the vacuum evaporation device 106 is added in the existing fresh meat supply device 101, and evaporation dehydration is performed on fresh meat in the pretreatment link. As shown in table 1, is the boiling temperature of water at various operating pressures. Referring to table 1, the parameters given for 2 exemplary embodiments are as follows: (1) The fresh meat is placed at the working temperature of 50 ℃ and the working pressure is set to be 12.33kpa, such as 8-10kpa, lower than the boiling point pressure of water at the working temperature, so that the rapid boiling evaporation of the water in the fresh meat can be realized; (2) The quick boiling and evaporation of water in fresh meat can be achieved by placing the fresh meat at an operating pressure of 10kpa and setting the operating temperature above the boiling temperature of water at 46 c and below 56 c, for example 50-53 c.

Table 1: boiling point temperature of water at different working pressures

Temperature (DEG C)	Pressure Pa	Temperature (DEG C)	Pressure Pa	Temperature (DEG C)	Pressure Pa	Temperature (DEG C)	Pressure Pa
								-40	12.8	2	705.3	35	5623.5	68	28557.7
-38	16.1	3	758.6	36	5940.8	69	29824.2
								-36	20.1	4	813.3	37	5275.5	70	31157.4
-34	24.9	5	871.9	38	6619.5	71	32517.3
								-32	30.9	6	934.6	39	6991.4	72	36943.9
-30	38.4	7	1001.3	40	7375.4	73	35423.8
								-28	47.1	8	1073.2	41	7778.0	74	36957.0
-26	57.2	9	1147.9	42	8199.3	75	38543.5
								-24	70.1	10	1227.9	43	8639.3	76	40183.4
-22	85.8	11	1311.9	44	9100.6	77	41876.6
								-21	94.4	12	1402.6	45	9583.2	78	43636.4
-20	102.9	13	1497.2	46	10085.8	79	45462.9
								-19	113.3	14	1598.5	47	10612.5	80	47342.8
-18	124.6	15	1705.2	48	11160.4	81	49289.3
								-17	136.9	16	1817.2	49	11735.0	82	51315.8
-16	150.4	17	1937.2	50	12333.7	83	53408.9
								-15	165.0	18	2063.8	51	12958.9	84	55568.8
-14	180.9	19	2197.2	52	13612.2	85	57808.6
								-13	198.1	20	2328.5	53	14292.2	86	60115.1
-12	216.9	21	2486.5	54	14998.8	87	62488.2
								-11	237.3	22	2643.8	55	15732.0	88	64941.3
-10	259.4	23	2809.1	56	16505.3	89	67474.5
								-9	283.3	24	2983.8	57	17305.2	90	70110.9
-8	309.4	25	3167.7	58	18145.2	91	72807.4
								-7	377.6	26	3361.0	59	19011.8	92	75593.8
-6	368.1	27	3565.0	60	19918.4	93	78473.5
								-5	401.0	28	3779.7	61	20851.6	94	81446.7
-4	436.8	29	4005.0	62	21838.2	95	84513.1
								-3	475.4	30	4242.3	63	22851.5	96	87672.8
-2	517.2	31	4492.9	64	23904.7	97	90939.2
								-1	562.1	32	4754.3	65	24998.0	98	94298.9
0	610	33	5030.3	66	26144.5	99	97752.0
								1	657.3	34	5319.6	67	27331.1	100	101325

In this embodiment, as shown in fig. 2, the fresh meat supply apparatus further includes: a dicer 107 for dicing the fresh meat; a meat grinder 108 for grinding the diced fresh meat; and an emulsifying machine 109 for emulsifying the minced fresh meat. Specifically, the fresh meat supply device mainly completes the functions of crushing, emulsifying and the like of fresh meat. The dicer 107 cuts fresh meat into meat blocks with the size of 5-10 cm, and sends the meat blocks into a meat grinder 108; the meat grinder 108 grinds fresh meat into meat particles with the particle size of 1-3 mm, and sends the meat particles into the emulsifying machine 109; the emulsifying machine 109 further chops and emulsifies meat particles, breaks cell walls in fresh meat, releases water in cells, and mixes and emulsifies fat, protein, water and the like to form emulsified meat emulsion with the particle size of 0.5-1 mm, and then sends the emulsified meat emulsion into the conditioner 103.

In this embodiment, as shown in fig. 2, the vacuum evaporation apparatus 106 illustrated by the dotted line may be provided at one or more of the following positions: the first position is between the dicer 107 and the meat grinder 108, and is used for dehydrating the diced fresh meat; a second position, between the meat grinder 108 and the emulsifying machine 109, for dehydrating the minced fresh meat; and a third position, after the emulsifying machine 109, for dehydrating the emulsified fresh meat.

In particular, the "set in the following position" in this embodiment should be understood to be based on the logical sequential setting manner in the links of fresh meat processing, rather than the actual position in physical space. Meanwhile, different setting modes have different technical effects. For the fresh meat particles which are singly arranged at the first position or the second position, the boiling evaporation effect is inferior to that of the third position under the same temperature and pressure conditions, and the fresh meat is required to be heated up in the step (from the temperature of the chilled fresh meat which is slightly lower than 0 ℃ to the working temperature, such as 50-53 ℃) so as to be unfavorable for bacteriostasis and fresh preservation of the fresh meat. For being independently arranged at the third position, the advantage is that the working temperatures of the dicer 107 and the meat grinder 108 can be set to be lower, for example, slightly lower than 0 ℃, so that bacteriostasis and fresh keeping of fresh meat are facilitated; secondly, the emulsified fresh meat mud has smaller particle diameter and good fluidity, so that the boiling evaporation effect is better; but the meat paste has good fluidity and smaller particle size, and is easy to enter the vacuumizing equipment along with boiling steam. As a preferred technical solution, the vacuum evaporation device 106 may be disposed at a plurality of positions, for example, positions one and three, positions two and three, and positions one, two and three, at the same time, which has the advantages that firstly, better dehydration effect can be obtained through multiple dehydration steps, secondly, the index requirement of single-stage dehydration is reduced, and the problems of poor single-stage dehydration effect, easy blockage of the vacuum pumping device, and the like are avoided.

In this embodiment, as shown in fig. 3 to 6, the vacuum evaporation apparatus 106 includes a sealed evaporation bin 201 for containing fresh meat, which is in communication with the evacuation apparatus through an exhaust passage 202. Specifically, the evaporation bin 201 is used for placing fresh meat to be treated, and can form a treatment environment with the working pressure and the working temperature, so that the fresh meat can realize boiling evaporation of water in the environment. When the vacuum evaporation device 106 is used, the fresh meat is firstly placed in the evaporation bin 201, then the vacuumizing device is turned on, and air is pumped out through the air exhaust channel 202, so that the pressure in the evaporation bin 201 is reduced, and steam discharged by water in the fresh meat during boiling is pumped out. The pressure in the evaporation chamber 201 can be measured and controlled by a barometer to reach and maintain a set operating pressure.

In this embodiment, the vacuum evaporation apparatus 106 includes a body 203 and a cover 204, and the evaporation chamber 201 is formed by enclosing the body 203 and the cover 204. As an alternative embodiment, the main body 203 is a cylindrical structure with an open top and a closed bottom, the top is provided with a cover 204 for cooperation, and the cover 204 has two states of opening and closing for putting in or taking out fresh meat.

In this embodiment, a separable structure is provided between the body 203 and the cover 204, and the evaporation bin is sealed by a sealing device. In particular, the sealing means comprise means for coupling the body 203 and the cover 204, such as a lock; and a sealing means for preventing gas leakage, such as a rubber seal provided between the body 203 and the cover 204.

In this embodiment, a temperature control device 205 is disposed in the evaporation bin 201. The temperature control device 205 is mainly used for controlling the working temperature of the working environment so as to reach and maintain the set working temperature. Specifically, firstly, if the temperature of the fresh meat in the last processing step is too low, the fresh meat needs to be heated in the evaporation bin 201 to reach the working temperature; secondly, the fresh meat can be cooled by taking away heat by water vapor in the boiling and evaporating process, so that the fresh meat is also required to be continuously heated.

In this embodiment, the temperature control device is an electric heating device or an energy-carrying fluid heating device disposed around the wall of the evaporation bin 201; the output temperature of the electric heating device or the energy-carrying fluid heating device is less than or equal to 56 ℃. Specifically, the electric heating device may be an electric heating rod, an electric heating ceramic plate, or the like; the energy-carrying fluid may be hot air, hot water vapor, water, ethanol/glycol, heat conducting oil, etc., and may exchange heat through a pipe disposed inside the side wall of the evaporation bin 201, and/or may directly dispose a fluid channel in the side wall of the evaporation bin 201 to improve heat exchange and heating effects. Preferably, the output temperature of the electric heating device or the energy-carrying fluid heating device is less than or equal to 56 ℃, so that protein denaturation of fresh meat caused by contact with a high-temperature heating component is avoided.

In this embodiment, a stirring device 206 is disposed in the evaporation bin 201. In order to avoid uneven heating and evaporation of the fresh meat in the evaporation bin 201, the stirring device 206 is provided to uniformly heat and uniformly evaporate and dehydrate the fresh meat.

In this embodiment, the stirring device 206 includes a stirring rotation shaft 207 and a plurality of stirring rods 208 uniformly distributed on the stirring rotation shaft 207, the stirring rods being disposed perpendicular to an outer surface of the stirring rotation shaft. Specifically, the stirring rotation shaft 207 is disposed inside the evaporation bin 201 along the axis direction of the body 203, and is driven to rotate by a motor disposed at the bottom, and drives the stirring rod 208 to perform a circular motion, so as to stir and turn fresh meat. The stirring rod 208 may have a cylindrical structure or a fan blade structure, so that the circumferential and up-and-down turning of fresh meat is more facilitated.

Preferably, the stirring rotation shaft 207 includes a rotation shaft 209 and a rotation sleeve 210, the rotation sleeve 210 is detachably sleeved on the rotation shaft 209, and the rotation shaft 209 and the rotation sleeve 210 realize positioning and synchronous movement in the circumferential direction through a clamping groove or a polygonal structure arranged at the joint position, that is, the rotation shaft 209 is driven to rotate by a motor, and the rotation shaft 209 drives the rotation sleeve 210 to synchronously rotate. Advantageously, the rotatable sleeve 210 and the stirring bar 208 are removable, thereby facilitating cleaning after removal. The rotary sleeve 210 is axially connected and fixed with the rotary shaft center 209 through a fastening device 211, and the fastening device 211 may be a screw thread and a nut arranged at the top end of the rotary shaft center 209.

According to the device for producing the high-proportion fresh meat pet puffed food, the vacuum evaporation equipment is arranged on the fresh meat supply device, the fresh meat can be dehydrated in a low-temperature boiling evaporation mode under the condition of maintaining the invariance of fresh meat protein, the water content in the fresh meat is reduced, the proportion of the fresh meat in the mixed feed of the puffing machine is improved, and the proportion of the fresh meat in the pet puffed food is improved.

The fresh meat content in the puffed pet food produced by the device can reach a higher proportion value, and the method is illustrated by the following specific calculation:

(1) Assuming that the fresh meat has a moisture content of 75%, the dry material has a moisture content of 0, and the upper limit of the moisture content of the expander treatment mix feed is 25%. If fresh meat and dry materials are directly mixed to prepare puffing feed, 1 part by weight of fresh meat contains 0.75 part by weight of water, 2 parts by weight of dry materials are required to be mixed, the total weight is 3 parts, the water content of the mixed feed is 0.75/3=25%, and the proportion of fresh meat of the puffed pet food is only 1/3=33%.

(2) Assuming that the fresh meat is unchanged as above, the fresh meat is dehydrated to a water content of 50% before being mixed with the dry ingredients, 1 part by weight (before dehydration) of the fresh meat contains 0.25 part of water, 0.25 parts of fat, protein fibers and the like, and the fresh meat is mixed with 0.5 part of the dry ingredients, the total weight (after dehydration) of the mixture is 1 part, the water content of the mixed feed is 0.25/1=25%, and the proportion of the fresh meat (calculated by weight of the fresh meat before dehydration) of the puffed pet food is 1/1.5=66.7%.

(3) According to the calculation method of the above (2), fresh meat is dehydrated to a water content of 40%, at this time, 1 part by weight (before dehydration) of fresh meat contains 0.1667 parts of water, 0.25 parts of fat, protein fiber and the like, and is mixed with 0.25 parts of dry ingredients, the total weight (after dehydration) of the mixture is 0.6667 parts, the water content of the mixed feed is 0.1667/0.6667=25%, and at this time, the ratio of fresh meat to the puffed pet food produced (calculated by fresh meat weight before dehydration) is 1/1.25=80%.

Example 2:

this example shows a method for producing a high-ratio fresh-meat pet food puffed, using or applied to the apparatus for producing a high-ratio fresh-meat pet food puffed described in example 1.

As shown in fig. 7, the method comprises the steps of:

s701: pretreating fresh meat; specifically, the step s701 is completed by the fresh meat supply device 101, so as to cut, grind and emulsify fresh meat.

s702: mixing and tempering the pretreated fresh meat and the dry material to form mixed feeding; specifically, the dry ingredients refer to low-moisture raw materials other than fresh meat supplied by the dry ingredient supply device 102, such as starch raw materials of wheat, corn, rice, soybean or wheat flour, rice flour, bean flour, etc., low-moisture fruits and vegetables or dried fruits and vegetables, fruit and vegetable powder, meat powder, other various vitamins, amino acids, additives for supplementing trace elements such as calcium and iron, and preservatives, etc. The mixing tempering is accomplished by the tempering device 103 to achieve thorough mixing and curing of the mixed feed.

s703: puffing the mixed feed to form a pet food; specifically, the mixed feed produced after the treatment in step s702 is puffed by the puffing machine 104; and cutting off and drying the puffed mixed feed by the post-processing device 105 to form the high-proportion fresh meat pet puffed food.

Wherein, the step s701 of preprocessing fresh meat comprises the following steps: and placing the fresh meat in an environment with the working pressure less than or equal to 16.5kpa and the working temperature less than or equal to 56 ℃ to enable the water in the fresh meat to be boiled and evaporated. Specifically, this step is accomplished by the vacuum evaporation apparatus 106.

In this embodiment, the water content in the fresh meat is 30-60% after the pretreatment step is completed.

Technical schemes and technical effects not specifically described in this embodiment are described in embodiment 1.

Example 3:

this example shows a pet food product containing a high proportion of fresh meat.

The pet food is prepared by the device for producing the high-proportion fresh-meat pet puffed food, which is described in the embodiment 1, and/or is prepared by adopting the method for producing the high-proportion fresh-meat pet puffed food, which is described in the embodiment 2, wherein the proportion of fresh meat in the pet food is more than or equal to 50%.

Example 4:

this example shows another apparatus for producing a high proportion of fresh meat pet puffed food. The technical solution disclosed in this embodiment may be implemented independently, or may be regarded as further optimization of embodiment 1, and implemented on the basis of embodiment 1.

The tempering device adopted on the food puffing production line has the main functions of mixing, preheating, pre-curing and the like of the feed, so that the mixed feed meets the feed parameter requirement of a puffing machine, and the effective puffing is realized. In the prior art, high temperature steam is typically used to heat the mixed feed inside the conditioner. The water vapor is cooled by the mixed feed to liquid water and then is integrated with the mixed feed, so that the water content of the mixed feed is increased. One can actively adjust (increase) the water content of the mixed feed for a process flow with dry ingredients as the main raw material, taking advantage of this additional feature of steam heating. However, in view of the application scenario and technical problems described in the background of the present utility model, the technical solution of steam heating is not acceptable in the need of reducing the water content of the mixed feed. In particular, according to the embodiments described in examples 1 and 2, the fresh meat addition ratio in the pet puffed food can be effectively increased by reducing the water content in the fresh meat. The conditioner heated by high-temperature steam adopted in the prior art cannot meet the requirements.

In order to solve the technical problems, the embodiment provides a device for producing high-proportion fresh meat pet puffed food. As shown in fig. 8, the device comprises a tempering device 803 and a bulking machine 804, wherein the tempering device 803 is used for tempering the pretreated fresh meat and dry materials to form mixed feed and conveying the mixed feed to the bulking machine 804; the expander 804 is configured to expand the mixed feed material to form a pet food; wherein, the shell of the conditioner 803 is provided with a first heating device which is physically isolated from the mixed feed in the conditioner 803 and is used for heating the mixed feed.

The prior art adopts high-temperature steam to heat the mixed feed, the steam is condensed into water to be mixed in the mixed feed, so that the water content of the mixed feed is increased, more severe requirements are put forward on the water content of the mixed feed, particularly the water content of fresh meat in the mixed feed, the water content of the fresh meat needs to be reduced to a lower level in advance, and the difficulty in realizing the method is high, and the quality of the fresh meat is reduced. In this embodiment, the mixed feed is heated by adopting a physical isolation heating manner, and the heating device or the energy-carrying fluid is not mixed with the mixed feed, but transfers heat to the mixed feed to be heated by adopting a heat transfer (and non-mixing) manner, so that the effect of quickly heating the mixed feed to the target working temperature is achieved.

Specifically, in this embodiment, a first heating device is disposed on the casing of the conditioner 803, and the first heating device is physically isolated from the mixed feed inside the conditioner 803, so as to avoid direct contact between the heating medium or energy-carrying medium (such as water vapor) of the first heating device and the mixed feed, and avoid affecting the components and properties of the mixed feed. In this embodiment, the apparatus for producing high-ratio fresh meat pet puffed food further includes a feeding device and a post-processing device 805. The feeding device comprises a fresh meat supply device 801 and a dry material supply device 802 for supplying fresh meat and dry materials to the conditioner 803; the post-processing device 805 is configured to cut and dry the output material puffed by the puffing machine 804 to form a pet food.

In this embodiment, the first heating device includes at least one of the following structures: an electric heating device is wrapped outside the shell; the shell is of a sandwich structure, and an electric heating device is arranged in the sandwich; the shell is of a sandwich structure, and a first energy carrying channel for carrying fluid to circulate is arranged in the sandwich. The first heating device heats the mixed feed in the conditioner through the shell, and the specific structure and the working principle of the first heating device are described in embodiment 7.

In this embodiment, a second heating device physically isolated from the mixed feed in the conditioner is disposed in the screw of the conditioner, so as to heat the mixed feed.

In this embodiment, the second heating device includes at least one of the following structures: the screw rod of the conditioner is internally provided with an axial hollow structure, and an electric heating device is arranged in the axial hollow structure. The screw inside of the conditioner 803 is provided with a second energy carrying channel for the energy carrying fluid to circulate along the axial direction. The second heating device heats the mixed feed in the conditioner through the screw rod, and the specific structure and the working principle are described in the embodiment 7.

Preferably, the first heating device and the second heating device can be combined for use, so that the mixed feeding device has the advantages of being more uniform in heating, higher in heat transfer efficiency and the like, the technical problem that more moisture is introduced into the mixed feeding device in the prior art is solved, and the defects caused by the background technology and the adoption of hot air heating in the prior art are avoided.

In this embodiment, the output temperature of the first heating device and the second heating device is > 100 ℃, and the first heating device and the second heating device are used for heating the mixed feed inside the conditioner 803 to 70-100 ℃. Specifically, in the case of using a single conditioner, a twin screw structured conditioner is used to heat the mixed feed to 70-100 ℃, thereby effecting curing of the mixed feed to form a mixed feed that can be expanded by the expander 804.

In this example, the tempering time of the mixed feed is greater than 120 seconds. Specifically, in the case of a single twin screw configuration conditioner, the conditioning time of the mixed feed is greater than 120 seconds to complete curing of the mixed feed to form a mixed feed that can be expanded by the expander 804.

In this embodiment, the conditioner 803 includes an upper-layer conditioner and a lower-layer conditioner, where output temperatures of a first heating device and a second heating device of the upper-layer conditioner are less than or equal to 56 ℃, so as to achieve preheating and full stirring and mixing of the mixed feed; the output temperature of the first heating device and the second heating device of the lower-layer tempering device is more than 100 ℃, and the lower-layer tempering device is used for heating the mixed feed in the tempering device to 70-100 ℃. As a more preferable technical solution, the thermal refining device 803 adopts a double thermal refining device structure, i.e. an upper thermal refining device and a lower thermal refining device, both adopt a double screw structure. The upper-layer tempering device is mainly used for carrying out low-temperature preheating and mixing stirring on mixed feeding materials, and the lower-layer tempering device is mainly used for high-temperature tempering and curing. Compared with the scheme of adopting a single conditioner, the double conditioner structure can divide the conditioning process into two independent stages, and has the advantages of more uniform mixing and stirring, more accurate staged heating temperature control, higher heating efficiency and the like. Specifically, performing first-stage tempering through an upper-layer tempering device, preheating and fully stirring and mixing the mixed feed, wherein the temperature of the preheated mixed feed is less than or equal to 56 ℃; and carrying out second-stage tempering by an upper-layer tempering device, and heating the mixed feed to 90-100 ℃.

In this embodiment, the tempering time of the lower-layer tempering device is 90-360 seconds. Specifically, in the case of the dual conditioner structure, the second-stage conditioning time of the mixed feed is longer than 90 seconds, so that the curing preparation of the mixed feed can be completed, and the mixed feed can be puffed and matured by the puffing machine 804.

In this embodiment, as shown in fig. 8, the apparatus further includes a feeding device, where the feeding device includes a fresh meat supply device 801 and a dry material supply device 802, and the fresh meat supply device 801 is used for pretreating fresh meat and delivering the fresh meat to the conditioner 803; the dry material supply device 802 is used for preprocessing the dry material and delivering the dry material to the conditioner 803.

In this embodiment, the apparatus further comprises a post-processing device 805, configured to cut and dry the puffed output from the puffing machine 804 to form a pet food. Specifically, the specific structure and operation principle of the fresh meat supplying apparatus 801, the dry material supplying apparatus 802 and the post-processing apparatus 805 are described in example 1.

The embodiment discloses a device for producing high proportion fresh meat pet puffed food, its regulator adopts the mode of physical isolation heating, has overcome among the prior art to mix the feeding introduce more moisture, adopt the air heating inefficiency scheduling problem, has that the mixed feeding is heated evenly, accuse temperature is accurate, heat transfer efficiency is high scheduling advantage.

Example 5:

this example shows another method for producing a high-ratio fresh-meat pet food puffed to be applied to the apparatus for producing a high-ratio fresh-meat pet food puffed as described in example 4.

As shown in fig. 7, the method comprises the steps of:

s701: pretreating fresh meat;

s702: mixing and tempering the pretreated fresh meat and the dry material to form mixed feeding;

s703: puffing the mixed feed to form a pet food;

specific embodiments of steps s701 to s703 are described in example 2.

The method for tempering the pretreated fresh meat and the dried meat in step s702 comprises the following steps: the mixed feed is heated by means of physically isolated heating.

The technical solution disclosed in this embodiment may be implemented independently, or may be considered as further optimization of embodiment 2, and implemented on the basis of embodiment 2. According to the technical scheme disclosed in the embodiment 2, in the step of preprocessing fresh meat in the step s701, dewatering the fresh meat, and in the step of mixing and tempering the preprocessed fresh meat and dry materials to form mixed feed in the step s702, the mixed feed is heated in a physical separation heating mode, so that more water is prevented from being introduced into the mixed feed, and the produced puffed pet food contains a higher proportion of fresh meat.

In this embodiment, the method for mixing and tempering the pretreated fresh meat and the dry meat comprises the following steps: and heating the mixed feed to 70-100 ℃, wherein the tempering time is more than 120 seconds.

In this embodiment, the method for mixing and tempering the pretreated fresh meat and the dry meat comprises the following steps: tempering in the first stage, preheating and fully stirring and mixing the mixed feed, wherein the temperature of the preheated mixed feed is less than or equal to 56 ℃; and a second stage of tempering, wherein the mixed feed is heated to 90-100 ℃ and the debugging time is 90-360 seconds.

Technical solutions and technical effects not specifically described in this embodiment are described in embodiment 5.

Example 6:

this example shows another pet food product containing a high proportion of fresh meat.

The pet food is prepared by the device for producing the high-proportion fresh-meat pet puffed food described in the embodiment 4 and/or is prepared by adopting the method for producing the high-proportion fresh-meat pet puffed food described in the embodiment 5, and the fresh meat proportion in the pet food is more than or equal to 50 percent.

Example 7:

the embodiment discloses a conditioner for producing high-proportion fresh meat pet puffed food, and the conditioner can be applied to the technical scheme disclosed in the embodiment 4.

In the prior art, a conditioner is used in a food puffing system, and high-temperature steam is generally used for heating mixed feed materials in the conditioner. The water vapor is cooled by the mixed feed to liquid water and then is integrated with the mixed feed, so that the water content of the mixed feed is increased. For processes with dry ingredients as the main raw material, one can take advantage of this additional property of steam heating to mediate (increase) the water content of the mixed feed. However, in view of the technical problems described in the background of the utility model and in the examples above, the use of steam heating is not acceptable in the desire to reduce the water content of the mixed feed. In particular, according to the embodiments described in examples 1 and 2, the fresh meat addition ratio in the pet puffed food can be effectively increased by reducing the water content in the fresh meat. The conditioner heated by high-temperature steam adopted in the prior art cannot meet the requirements.

As shown in fig. 9 and 10, a conditioner for producing high-proportion fresh meat pet puffed food provided by the embodiment comprises a shell 901 and a screw 902, wherein the shell 901 encloses a working cavity 903 for accommodating mixed feed, the screw 902 is arranged in the working cavity 903, and a feed inlet 913 and a discharge outlet 914 are also arranged on the shell 901; wherein the housing 901 is provided with a first heating device physically isolated from the mixed feed inside the conditioner for effecting heating of the mixed feed. Specifically, the casing 901 is integrally in a two-section closed cylindrical structure, and is horizontally arranged on a stand 905, and two screws 902 matched with each other are arranged in the casing. The specific arrangement of the structures such as the casing 901 and the screw 902 may be a conventional technology, and the embodiment is not limited thereto. Wherein, the shell 901 is provided with a first heating device which is physically isolated from the mixed feed in the conditioner, and the heat is transferred to the mixed feed in a heat conduction mode, so that the mixed feed is heated to reach or maintain a set temperature.

In this embodiment, the first heating device has a structure as follows: an electric heating device provided outside the casing 901. Specifically, an electric heating device such as an electric heating wire or an electric heating sheet may be additionally disposed on the outer side of the existing casing 901 to heat the casing 901. Because the housing 901 is generally made of metal, it has high heat conducting property, and can better transfer heat to the internal mixed feed. Preferably, the outer side of the electric heating device is coated with a heat insulation material, so that the heat insulation performance of the equipment is improved, and heat loss and waste are reduced.

In this embodiment, the first heating device has a structure as follows: the casing 901 is a sandwich structure, and an electric heating device is arranged in the sandwich 911. Specifically, the electric heating device is directly arranged in the inner interlayer of the casing 901, so that the integration degree of the equipment is higher, and meanwhile, the integrated process can also reduce the failure rate of the equipment and the maintenance man-hour, so that the volume of the equipment is smaller.

In this embodiment, the first heating device has a structure as follows: the casing 901 is a sandwich structure, and a first energy carrying channel for the energy carrying fluid to circulate is arranged in the sandwich 911. In particular, the energy-carrying fluid may be steam, water, ethanol/glycol, oil, etc., which releases heat as it flows through the first energy-carrying channel and transfers heat to the mixed feed through the housing 901. Preferably, the first energy-carrying channel is formed in the housing 901, the first energy-carrying channel enabling the inflow and outflow of energy-carrying fluid through the first energy-carrying fluid inlet 909 and the first energy-carrying fluid outlet 910.

In this embodiment, the number of the first heating devices is 1 or more. The first heating means may be of unitary construction. Preferably, to reduce complexity of the manufacturing process of the first energy-carrying channel in the housing 901, the first energy-carrying channel may be provided in a plurality of independent structures, respectively provided in the plurality of independent components, according to shapes of components constituting the housing 901. As shown in fig. 9 and 10, an embodiment is illustrated that includes two first energy-carrying channels, two sets of first energy-carrying fluid inlets 909 and a first energy-carrying fluid outlet 910.

In this embodiment, a second heating device is disposed in the screw 902 of the conditioner and is physically isolated from the mixed feed in the conditioner, so as to heat the mixed feed. In particular, in the case of relying on only the first heating means, there may be a case where the heating capacity is insufficient, for example, in the case where the conditioner according to the present embodiment is used as an upper-layer conditioner in a double-conditioner expansion apparatus line, since the upper limit of the heating temperature of the heating means is limited to only 56 ℃, the temperature difference between the heating means and the mixed feed is small, and thus the heat exchanging capacity is necessarily poor. One mature solution is to increase the length of the conditioner, or to extend the conditioning time, which obviously makes the appearance of the conditioner bulky, or reduces the production efficiency. As a preferred solution, a second heating device may be further provided inside the screw 902 of the conditioner, ensuring that the conditioner has sufficient heat exchange capacity.

In this embodiment, the second heating device has a structure as follows: the screw 902 of the conditioner is internally provided with an axial hollow structure 912, and an electric heating device is arranged in the axial hollow structure. Specifically, the electric heating device may be an electric heating wire or an electrothermal ceramic tube, etc., the screw 902 is heated by the electric heating device, and the screw 902 transfers heat to the mixed feed through its screw body and screw thread. The advantage of this solution is that all the mixed feed in the conditioner is pushed forward by the screw 902, i.e. as long as the mixed feed moves forward, it is necessarily heated by the screw 902, so that the mixed feed is heated more uniformly and the heat conduction effect is better.

In this embodiment, the second heating device has a structure as follows: a second energy carrying channel 912 through which an energy carrying fluid flows is provided in the screw 902 of the thermal refining device along the axial direction. As a preferred embodiment, the hollow structure of the screw 902 is used as the second energy carrying channel 912, similar to the heating mode of the energy carrying fluid used in the first heating device, to provide heat through the energy carrying fluid.

In this embodiment, two ends of the screw 902 are connected to the second energy-carrying fluid inlet 907 and the second energy-carrying fluid outlet 908 through the rotatable joint 906, so as to enable the energy-carrying fluid to be introduced into the second energy-carrying channel 912. Specifically, since the screw 902 needs to rotate during operation for rotation, the rotatable joint 906 is also required to enable the circulation of the energy-carrying fluid in the screw 902 and the sealing of the energy-carrying fluid from leakage during the flow. As shown in fig. 9 and 10, the rotatable joint 906 is fixed on the frame 905, and has one end fixedly connected to the second energy-carrying fluid inlet 907 or the second energy-carrying fluid outlet 908, and the other end rotatably connected to one end of the second energy-carrying channel 912. Meanwhile, the connection rotation part of the rotatable joint 906 and the second energy carrying channel 912 should use a sealing ring or the like to seal the energy carrying fluid.

In this embodiment, the number of the second heating devices is 1 or more. Specifically, the number of the second energy carrying channels 912 may be set according to the number of the screws 902. As shown in fig. 9 and 10, the thermal refining apparatus is schematically shown to include two screws 902, and one second energy carrying channel 912 is provided in each screw 902.

The embodiment discloses a quenching and tempering ware for producing high proportion fresh meat pet puffed food adopts the mode of physical isolation heating, heats mixed feeding through quenching and tempering ware shell and screw rod with the mode of heat conduction, has overcome among the prior art to mix feeding introduce more moisture, adopt air heating inefficiency scheduling problem, has that mixed feeding is heated evenly, accuse temperature is accurate, heat transfer efficiency is high scheduling advantage. Technical solutions and technical effects not specifically described in this embodiment are described in embodiment 4.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (7)

1. A tempering device for producing high-proportion fresh meat pet puffed food comprises a shell and a screw, wherein the shell encloses a working cavity for accommodating mixed feed, the screw is arranged in the working cavity, and a feed inlet and a discharge outlet are also formed in the shell;

the method is characterized in that:

the shell is provided with a first heating device which is physically isolated from the mixed feed in the conditioner and is used for heating the mixed feed;

wherein the first heating device has one of the following structures:

an electric heating device arranged outside the shell; or alternatively, the process may be performed,

the shell is of a sandwich structure, and an electric heating device is arranged in the sandwich; or alternatively, the process may be performed,

the shell is of a sandwich structure, and a first energy carrying channel for carrying fluid to circulate is arranged in the sandwich.

2. The conditioner for producing high-ratio fresh meat pet puffed food of claim 1 wherein: the number of the first heating devices is 1 or more.

3. The conditioner for producing high-ratio fresh meat pet puffed food of claim 1 wherein: and a second heating device which is physically isolated from the mixed feed in the conditioner is arranged in the screw of the conditioner and is used for heating the mixed feed.

4. A conditioner for producing high-ratio fresh meat pet puffed food as claimed in claim 3 wherein: the structure of the second heating device is as follows:

the screw rod of the conditioner is internally provided with an axial hollow structure, and an electric heating device is arranged in the axial hollow structure.

5. A conditioner for producing high-ratio fresh meat pet puffed food as claimed in claim 3 wherein: the structure of the second heating device is as follows:

and a second energy carrying channel for the circulation of energy carrying fluid is arranged in the screw rod of the conditioner along the axial direction.

6. The conditioner for producing high-ratio fresh meat pet puffed food of claim 5 wherein: and two ends of the screw are communicated with a second energy-carrying fluid inlet and a second energy-carrying fluid outlet through rotatable connectors, so that energy-carrying fluid is introduced into the second energy-carrying channel.

7. A conditioner for producing high-ratio fresh meat pet puffed food as claimed in claim 3 wherein: the number of the second heating devices is 1 or more.