Low-protein feed for egg-laying quails and production process of low-protein feed

Abstract

The invention relates to a low-protein feed for egg-laying quails and a production process thereof in the field of feed production processes, and the feed comprises the following components: corn, soybean meal, corn protein powder, coenzyme Q residues, corn sugar residues, calcium hydrophosphate, calcium carbonate, sodium chloride, sodium bicarbonate, tapioca flour, 65% lysine, 99% methionine, 99% tryptophan, 98% threonine, 99% isoleucine and 99% valine. The raw materials comprise first-grade soybean oil, second-grade soybean oil, 4000 IU alpha amylase, diglycerol fatty acid ester, fulvic acid and citric acid rare earth; on one hand, feed formula protein is reduced, protein resources and cost are effectively saved, on the other hand, steam heat is recycled in the feed production process, energy consumption in the production process is further reduced, cost is further saved, and economic benefits are effectively improved.

Description

Technical Field

[0001] The invention relates to a production process of low-protein feed for laying quails, in particular to a production process of low-protein feed for laying quails applied in the field of feed production technology. Background Art

[0002] With the improvement of living standards, quail meat and quail eggs, as a high-quality, high-protein poultry product, are becoming more and more popular among consumers. In recent years, the scale of egg-laying quail farming in my country has also been gradually expanding. However, there is little research on the nutritional needs of quail's physiological needs in my country.

[0003] In order to solve the problem of feed protein, a certain feed production process in the market adopts a fermentation design and has a certain market share.

[0004] The specification of Chinese invention patent CN116998592B discloses a process for low-moisture fermentation of protein feed raw materials, which is achieved by mixing additives with water and crushed protein feed raw materials and then sealing them for anaerobic fermentation; the invention method achieves low-moisture fermentation of protein feed raw materials of about 30%, reduces the viscosity of fermented protein feed raw materials, and improves production efficiency and application amount in feed.

[0005] The specification of Chinese invention patent CN109170198B discloses a low-protein feed for broilers, comprising the following raw materials in parts by weight: corn, puffed soybean meal, wheat, cottonseed meal, corn gluten powder, L-lysine, DL-methionine, L-threonine, L-tryptophan, monocalcium phosphate, calcium carbonate, salt, glucose and an energy utilization regulator; the invention also discloses a method for preparing the low-protein feed for broilers, which specifically comprises the following steps: (1) mixing the raw materials; (2) preparing granules; and (3) drying and discharging the materials; the low-protein feed for broilers and the method for preparing the same, wherein the prepared feed can effectively improve the protein utilization rate of broilers, reduce nitrogen emissions of broilers, and does not affect nitrogen deposition and the growth performance of broilers.

[0006] The existing quail farming feed costs are high and the feed conversion rate is low, resulting in low farming benefits. In particular, laying quails have long been fed with high-protein feed formulas with protein levels as high as 24-26%. The formula cost is high, but the feed conversion rate is not high. The feed-to-egg ratio has long been maintained at 2.5-2.6 / 1 and cannot be broken through.

[0007] In order to improve the production performance of quails in the prior art, it is necessary to increase the fat content in the feed to solve the problem of insufficient energy. Although this can improve the feed conversion rate and reduce the feed-egg ratio, adding a large amount of oil to the feed will lead to an increase in the cost of the feed formula and will not improve the production efficiency of the breeding company. Summary of the invention

[0008] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that in order to improve the production performance of quail in the prior art, it is necessary to increase the fat content in the feed to solve the problem of insufficient energy. Although this can improve the feed conversion rate and reduce the feed-egg ratio, adding a large amount of oil to the feed will lead to an increase in the cost of the feed formula and cannot improve the production efficiency of the breeding enterprise.

[0009] In order to solve the above problems, the present invention provides a low-protein feed for laying quails, characterized in that the feed comprises the following components by weight: 10-25 parts of corn, 8-15 parts of soybean meal, 5-16 parts of corn gluten powder, 0.5-5 parts of coenzyme Q10 residue, 5-15 parts of corn sugar residue, 0.3-1.5 parts of calcium hydrogen phosphate, 3-10 parts of calcium carbonate, 0.2-2 parts of sodium chloride, 0.4-3 parts of sodium bicarbonate, 15-20 parts of cassava flour, 65% 0.4-2 parts of lysine, 0.1-3.2 parts of 99% methionine, 0.02-1 parts of 99% tryptophan, 0.1-2.8 parts of 98% threonine, 0.05-1 parts of 99% isoleucine, 0.3-1 parts of 99% valine, 2-6 parts of grade tertiary soybean oil, 0.05-0.5 parts of 40000IU α-amylase, 0.1-2 parts of diglycerol fatty acid ester, 0.1-0.5 parts of fulvic acid, 0.1-0.5 parts of 95% rare earth citric acid;

[0010] In the above-mentioned low-protein feed for laying quails, the protein content of the feed formula is reduced, effectively saving protein resources and costs.

[0011] A production process of low-protein feed for laying quails, the specific process steps comprising:

[0012] A1, mixing and puffing, put the prepared amino acid compound package into the premixer, mix for 3 minutes, then output the feed and preheat it;

[0013] After preheating, it is placed in a feed extruder for modulation, and steam is injected; it is extruded and rotated; the extrusion temperature reaches 140 degrees in a short time to gelatinize the cassava flour and wrap the amino acids;

[0014] After cooling for 5 minutes, crush and package for use; during the cooling process, the discharged steam is recovered and sent to the waste heat utilization equipment for heat exchange with water; the recovered hot water output after heat exchange is stored for use, and after the temperature stabilizes, it is output for steam generator or feed preheating according to the stable temperature value of the hot water. The cooling steam discharged by heat exchange is used for the preset designated equipment through different paths;

[0015] A2, crushing and mixing to obtain mixed raw materials, the mixing and puffing steps of the mixed raw materials include: first crushing raw material A into 0.5-2 mm particle size, then adding raw material B and puffed amino acid package to mix fully, after mixing evenly, lifting to a pellet mill to start pelleting, preheating the feed during the lifting and output process, and lifting to a pellet mill to start pelleting after preheating;

[0016] The raw material A comprises the following components by weight: 10-25 parts of corn, 8-15 parts of soybean meal, 5-16 parts of corn gluten powder, 0.5-5 parts of coenzyme Q10 residue, and 5-15 parts of corn sugar residue;

[0017] The raw material B comprises the following components by weight: 0.3-1.5 parts of calcium hydrogen phosphate, 3-10 parts of calcium carbonate, 0.2-2 parts of sodium chloride, and 0.4-3 parts of sodium bicarbonate;

[0018] A3, granulation, using a modulator and a granulator for granulation, the steam pressure during granulation is 4-6 Pa, the feed conditioning temperature in the modulator is 85 degrees to 95 degrees, and the conditioning and maturation time is 2 minutes; the pelletized feed is transported to a crusher and crushed into pellets with a diameter of 0.3-0.5 cm that are convenient for quails to eat;

[0019] A4, secondary mixing, conveying the crushed pellet feed to the mixer, and then spraying the raw material C for mixing. After the feed in the mixer is fully mixed, it is cooled and dried and then packaged into finished products for storage; the raw material C includes the following components by weight: 2-6 parts of grade tertiary soybean oil, 0.05-0.5 parts of 40000IU α-amylase, 0.1-2 parts of diglycerol fatty acid ester, and 0.1-5 parts of fulvic acid.

[0020] As a further improvement of the present application, the waste heat utilization device includes a heat exchange water tank, a steam recovery pipe group is fixedly connected to the heat exchange water tank, the steam recovery pipe group includes an air inlet pipe, and three heat exchange pipe rows are fixedly connected to the air inlet pipe; an exhaust pipe is connected between the output ends of the three heat exchange pipe rows;

[0021] The heat exchange water tank is provided with heat exchange cavities matched with three heat exchange tube banks respectively, and a connecting valve is connected between two adjacent heat exchange cavities; a connecting pipe is connected between two adjacent heat exchange tube banks, and a three-way solenoid valve is connected between the connecting pipe and the heat exchange tube bank;

[0022] The output end of the heat exchange cavity is connected to a water storage tank, and the hot water output from the water storage tank is used for the pre-mixer, the modulator and the steam generator respectively;

[0023] The water storage tank includes an insulation shell, in which three temperature stabilization chambers are fixedly connected, two adjacent temperature stabilization chambers are directly connected to an output pipe, a circulation pipe is connected between the multiple temperature stabilization chambers, and a circulation liquid pump matching the circulation pipe is fixedly connected in the insulation shell.

[0024] As a further improvement of the present application, the annular membrane aperture in A3 is 2.5-3, the compression ratio is 1:13-1:15, and the granulation length is 1.5-2.5 cm.

[0025] As a further improvement of the present application, the amino acid composite package in A1 includes the following components by weight: 10-25 parts of cassava flour, 0.4-2 parts of 65% lysine, 0.1-3.2 parts of 99% methionine, 0.02-1 parts of 99% tryptophan, 0.1-2.8 parts of 98% threonine, 0.05-1 parts of 99% isoleucine, and 0.3-1 parts of 99% valine.

[0026] As another improvement of the present application, the puffed amino acid package in A2 includes the following components by weight: 10-25 parts of cassava flour, 0.4-2 parts of 65% lysine, 0.1-3.2 parts of 99% methionine, 0.02-1 parts of 99% tryptophan, 0.1-2.8 parts of 98% threonine, 0.05-1 parts of 99% isoleucine, 0.3-1 parts of 99% valine, and 0.1-0.5 parts of 95% rare earth citrate.

[0027] As another improved supplement of the present application, the tube diameters and path lengths of the three heat exchange tube rows are different.

[0028] As another improved supplement of the present application, a waste heat utilization system is also included, the waste heat utilization system includes a processor, and the processor is connected to a control module, a data processing module, a data storage module, a monitoring module and a waste heat control module;

[0029] The control module is used to control the operation of the steam generator, waste heat utilization equipment and steam temperature regulator;

[0030] The monitoring module is used to collect monitoring data, including feed mixer exhaust temperature, feed temperature, recovered hot water temperature, recovered heat flow, recovered steam temperature and recovered steam flow;

[0031] A data processing module, used to process monitoring data and regulate the use of recovered hot water and recovered steam according to equipment operating parameters;

[0032] Data storage module, used to store monitoring data and equipment parameters.

[0033] As another improvement supplement of the present application, a path adjustment mode is provided in the control module. When the path adjustment mode is working, multiple connecting valves and connecting pipes are controlled to be opened, so that the recovered steam is discharged after passing through multiple heat exchange tube rows, and the heat exchange water is discharged to the water storage tank after passing through multiple heat exchange cavities. The circulation pipe in the water storage tank is opened to communicate with the three temperature stabilization chambers.

[0034] As another improved supplement of the present application, when the data processing module performs heating adjustment, the specific process includes:

[0035] For the hot water used for the steam generator, the amount of steam that can be generated from the recycled hot water is obtained according to the conversion rate of the steam generator to the recycled hot water, and then the remaining required steam amount is determined according to the steam usage of the extruder and the premixer, and the steam generation work is adjusted according to the remaining required steam amount;

[0036] For the hot water used for preheating the feed, first set the staged preheating steps according to the amount of recovered hot water. The recovered hot water is used independently for one preheating stage. In the other preheating stages, set appropriate hot water or steam to preheat the feed.

[0037] In summary, this solution reduces the protein content of feed formula through formula adjustment, effectively saving protein resources and costs. On the other hand, it realizes the recovery and reuse of steam heat in the feed production process, further reduces energy consumption in the production process, further saves costs, and effectively improves economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a process flow chart of the first embodiment of the present application;

[0039] Figure 2 This is a working topology diagram of the first and second implementation modes of this application;

[0040] Figure 3 This is a three-dimensional diagram of a waste heat utilization device according to the second embodiment of the present application;

[0041] Figure 4 This is a side sectional view of a waste heat utilization device according to the second embodiment of the present application;

[0042] Figure 5 It is a top cross-sectional view of the second embodiment of the present application;

[0043] Figure 6 A schematic diagram of the steam path when the path adjustment mode of the second embodiment of the present application is working;

[0044] Figure 7 A schematic diagram of the steam path when the waste heat utilization device of the second embodiment of the present application is working normally;

[0045] Figure 8 This is a block diagram of a waste heat utilization system according to the second embodiment of the present application;

[0046] Fig. 9 This is a schematic diagram of the working of the waste heat utilization system of the first and second implementation modes of the present application.

[0047] Description of the numbers in the figure:

[0048] 1 heat exchange water tank, 2 steam recovery pipe group, 21 air inlet pipe, 22 heat exchange tube row, 23 exhaust pipe, 24 connecting pipe, 3 connecting valve, 4 water storage tank, 41 insulation shell, 42 temperature stabilization chamber, 43 circulation pipe, 44 circulation liquid pump. DETAILED DESCRIPTION

[0049] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0050] The first implementation method:

[0051] Figure 1-2 It is shown that a low-protein feed for laying quails includes the following components by weight: 10-25 parts of corn, 8-15 parts of soybean meal, 5-16 parts of corn gluten powder, 0.5-5 parts of coenzyme Q10 residue, 5-15 parts of corn sugar residue, 0.3-1.5 parts of calcium hydrogen phosphate, 3-10 parts of calcium carbonate, 0.2-2 parts of sodium chloride, 0.4-3 parts of sodium bicarbonate, 15-20 parts of cassava flour, 0.4-2 parts of 65% lysine, 99% methionine 0.1-3.2 parts, 99% tryptophan 0.02-1 parts, 98% threonine 0.1-2.8 parts, 99% isoleucine 0.05-1 parts, 99% valine 0.3-1 parts, third-grade soybean oil 2-6 parts, 40000IU α-amylase 0.05-0.5 parts, diglycerol fatty acid ester 0.1-2 parts, fulvic acid 0.1-0.5 parts, 95% rare earth citric acid 0.1-0.5 parts.

[0052] A production process of low-protein feed for laying quails, the specific process steps comprising:

[0053] A1, mixing and puffing, putting the prepared amino acid compound package into a premixer (the premixer is provided with a hot water heat exchange tube for preheating feed), mixing for 3 minutes, and then outputting the feed and preheating it; the amino acid compound package includes the following components by weight: 10-25 parts of cassava flour, 0.4-2 parts of 65% lysine, 0.1-3.2 parts of 99% methionine, 0.02-1 parts of 99% tryptophan, 0.1-2.8 parts of 98% threonine, 0.05-1 parts of 99% isoleucine, and 0.3-1 parts of 99% valine;

[0054] After preheating, it is placed in a feed extruder for modulation, and steam is injected; it is extruded and rotated; the extrusion temperature reaches 140 degrees in a short time to gelatinize the cassava flour and wrap the amino acids;

[0055] After cooling for 5 minutes, crush and package the material for later use. The material can be cooled in stages. When cooling in stages, the material is first cooled by steam at a lower temperature, and then by water at a lower temperature, so that the material temperature is gradually reduced to the set temperature.

[0056] The steam discharged during the cooling process is recovered and sent to the waste heat utilization equipment for heat exchange with water; the recovered hot water output after heat exchange is stored for standby use, and after the temperature stabilizes, it is output for steam generator or feed preheating according to the stable temperature value of the hot water. The cooling steam discharged by heat exchange is used for preset designated equipment through different paths;

[0057] In step A1, the high pressure formed when cassava flour is extruded and sheared at high temperature reaches 2.5-3 Pa. After starch gelatinization, it combines with amino acids to form a covering inclusion body, which slows down its release rate and makes it easier for energy feed to be absorbed and utilized by animals, achieving the effect of promoting growth.

[0058] Secondly, the puffing process is low-cost and easy to scale up. Since the puffing process is instantaneous high temperature, it does not affect the chemical structure of amino acids, ensuring that there is no effect on the nutrition of the feed.

[0059] A2, crushing and mixing to obtain mixed raw materials, the mixed raw materials mixing and puffing step includes: first crushing raw material A into 0.5-2 mm particle size, then adding raw material B and puffed amino acid package to mix thoroughly, after mixing evenly, lifting to a pellet mill to start pelleting (a feed lifter is used during lifting, and a hot water heat exchange pipe for preheating feed is provided in the feed lifter), preheating the feed during the lifting and output process, and after preheating, lifting to a pellet mill to start pelleting;

[0060] Raw material B includes the following components by weight: 0.3-1.5 parts of calcium hydrogen phosphate, 3-10 parts of calcium carbonate, 0.2-2 parts of sodium chloride, and 0.4-3 parts of sodium bicarbonate;

[0061] The puffed amino acid package includes the following components by weight: 10-25 parts of cassava flour, 0.4-2 parts of 65% lysine, 0.1-3.2 parts of 99% methionine, 0.02-1 parts of 99% tryptophan, 0.1-2.8 parts of 98% threonine, 0.05-1 parts of 99% isoleucine, 0.3-1 parts of 99% valine, and 0.1-0.5 parts of 95% rare earth citrate;

[0062] A3, granulation, using a modulator and a granulator for granulation, the steam pressure during granulation is 4-6 Pa, the feed conditioning temperature in the modulator is 85 degrees to 95 degrees, and the conditioning and maturation time is 2 minutes; the pelletized feed is transported to a crusher and crushed into pellets with a diameter of 0.3-0.5 cm that are convenient for quails to eat;

[0063] This process is mainly to improve the digestibility of plant raw materials by maturation while reducing intestinal diseases in quails.

[0064] A4, secondary mixing, conveying the crushed pellet feed to the mixer, and then spraying the raw material C for mixing. After the feed in the mixer is fully mixed, it is cooled and dried and then packaged into finished products for storage; the raw material C includes the following components by weight: 2-6 parts of grade tertiary soybean oil, 0.05-0.5 parts of 40000IU α-amylase, 0.1-2 parts of diglycerol fatty acid ester, and 0.1-5 parts of fulvic acid.

[0065] The necessity of this process is that 40000IU α-amylase is not resistant to high temperature. The high temperature formed by adding steam and high temperature to the granulation ring membrane too early will destroy the activity of the enzyme and make it ineffective. Therefore, the enzyme preparation is mixed with oil and fat before use. It retains the activity of the enzyme and also solves the problem that the granules are not easy to form when using a modulator and a granulator for granulation.

[0066] This formula and production process have been put into practice to produce good benefits. While reducing the cost of feed formula, it can also increase the production capacity of quail. The feed-egg ratio of the traditional formula feed is reduced from 2.6 to 1 to 2.0-2.1 to 1, saving 0.4-0.6 kg of feed per kilogram of quail eggs produced; the protein content of the feed formula is reduced from 26 to 20-22, effectively saving protein resources.

[0067] In this scheme, artificially extracted α-amylase is added to increase the conversion rate of starch, thereby solving the problem of low carbohydrate conversion rate of quail;

[0068] Secondly, diglycerol fatty acid esters are added to emulsify the oil and improve the absorption and utilization rate of fat;

[0069] Six kinds of synthetic amino acids are also added to reduce the amount of soybean meal, reduce the crude protein content, reduce the cost of the formula, and also reduce the ammonia content in the breeding shed and reduce the incidence of respiratory tract diseases in quails;

[0070] Finally, lysozyme was used to reduce the number of harmful bacteria in the quail's intestines, alleviating problems such as intestinal inflammation and fallopian tube inflammation.

[0071] Second implementation method:

[0072] Figure 3-9As shown, the waste heat utilization device includes a water exchange tank 1, a steam recovery pipe group 2 is fixedly connected to the water exchange tank 1, and the steam recovery pipe group 2 includes an air inlet pipe 21, and three heat exchange pipe rows 22 are fixedly connected to the air inlet pipe 21; an exhaust pipe 23 is connected between the output ends of the three heat exchange pipe rows 22; a drain pipe and a liquid level sensor are installed on the exhaust pipe 23, and when the steam is liquefied, it is discharged through the drain pipe; a steam temperature regulator is connected to the exhaust pipe 23, and the recovered steam after heat exchange in the water exchange tank 1 is discharged through the exhaust pipe 23, and then adjusted to a uniform set temperature by the steam temperature regulator and output to this set device for appropriate work; the recovered steam with a lower temperature can be used for staged cooling during cooling in step A1;

[0073] The heat exchange water tank 1 is provided with heat exchange cavities 11 respectively matched with three heat exchange tube rows 22, and a connecting valve 3 is connected between two adjacent heat exchange cavities 11; a connecting pipe 24 is connected between two adjacent heat exchange tube rows 22, and a three-way solenoid valve is connected between the connecting pipe 24 and the heat exchange tube row 22;

[0074] The output end of the heat exchange cavity 11 is connected to a water storage tank 4, and the hot water output from the water storage tank 4 is used for the pre-mixer, the modulator and the steam generator respectively;

[0075] The water storage tank 4 includes a heat preservation shell 41, three temperature stabilization chambers 42 are fixedly connected in the heat preservation shell 41, two adjacent temperature stabilization chambers 42 are directly connected to an output pipe, a circulation pipe 43 is connected between the multiple temperature stabilization chambers 42, and the circulation pipe 43 is provided with a liquid inlet valve located in the multiple temperature stabilization chambers 42, and a circulation liquid pump 44 matching the circulation pipe 43 is fixedly connected in the heat preservation shell 41;

[0076] When the circulating liquid pump 44 is working, multiple liquid inlet valves on a circulating pipe 43 are opened, and the liquids in the three temperature stabilization chambers 42 circulate among the three temperature stabilization chambers 42, so that the fluids in the three temperature stabilization chambers 42 merge and flow uniformly, so that the fluids in the three temperature stabilization chambers 42 are heat-exchanged to a uniform temperature;

[0077] When the waste heat utilization equipment of this embodiment works normally, the three heat exchange tube rows 22 exchange heat with the water in the three heat exchange cavities 11 respectively. Since the path lengths and sizes of the three heat exchange tube rows 22 are different, the three heat exchange cavities 11 output hot water with different temperatures after heat exchange and store them in the temperature stabilization chamber 42; after the temperature of the hot water is stabilized in the temperature stabilization chamber 42, it is output to a suitable setting device according to its temperature, and the setting device includes a steam generator, a premixer and a feed elevator.

[0078] It also includes a waste heat utilization system, which includes a processor, and the processor is connected to a control module, a data processing module, a data storage module, a monitoring module and a waste heat control module;

[0079] The control module is used to control the operation of the steam generator, the waste heat utilization equipment and the steam temperature regulator; the steam generator is used to provide steam to the modulator and the feed mixer, and the steam temperature regulator is used to adjust the temperature of the recovered steam; the steam temperature regulator adopts the equipment used for steam regulation in the prior art, and is set by technical personnel in this field using appropriate steam temperature regulation equipment and methods, such as an electric heater, a cooler and a bypass pipe connected to the steam generator. When adjusting the temperature, the recovered steam can be heated by the electric heater, the recovered steam can be cooled by the cooler, or the steam generator can output steam with a set temperature and flow rate and mix it with the recovered steam to achieve temperature regulation when the recovered steam is reused.

[0080] The monitoring module is used to collect monitoring data, including feed mixer exhaust temperature, feed temperature, recovered hot water temperature, recovered heat flow, recovered steam temperature and recovered steam flow;

[0081] A data processing module, used to process monitoring data and regulate the use of recovered hot water and recovered steam according to equipment operating parameters;

[0082] Data storage module, used to store monitoring data and equipment parameters;

[0083] The control module is provided with a path adjustment mode. When the path adjustment mode is in operation, the multiple connecting valves 3 and the connecting pipes 24 are controlled to be opened, so that the recovered steam is discharged after passing through the multiple heat exchange tube rows 22, and the heat exchange water is discharged to the water storage tank 4 after passing through the multiple heat exchange cavities 11. The circulation pipe 43 in the water storage tank 4 is opened to communicate with the three temperature stabilization chambers 42.

[0084] When the path adjustment mode is working, the steam exchanges heat with the water in the heat exchange cavity 11 through the three interconnected heat exchange tube rows 22 to achieve full heat recovery. If the steam is liquefied, it can be discharged through the drain pipe connected to the exhaust pipe 23;

[0085] After the hot water discharged from the heat exchange cavity 11 enters the water storage tank 4, since the three temperature stabilization chambers 42 are connected, the hot water is stored in the water storage tank 4 until the temperature is stabilized and then can be uniformly output;

[0086] This path adjustment mode is applicable to the situation where hot water is recycled and reused, the application equipment is single and the required recycled hot water temperature is high, so that hot water with a higher temperature can be recycled for the set equipment;

[0087] When the data processing module adjusts the heating supply, the specific process includes:

[0088] For the hot water used for the steam generator, the amount of steam that can be generated from the recycled hot water is obtained according to the conversion rate of the steam generator to the recycled hot water, and then the remaining required steam amount is determined according to the steam usage of the extruder and the premixer, and the steam generation work is adjusted according to the remaining required steam amount;

[0089] For the hot water used for preheating feed, first set the preheating steps in stages according to the amount of recovered hot water. The recovered hot water is used independently for one preheating stage. In the other preheating stages, set appropriate hot water or steam to preheat the feed.

[0090] Specifically, the data processing module first calculates, based on the available amount of recovered hot water, how much temperature of feed the recovered hot water can be used to heat and how many degrees Celsius a set batch of feed to be preheated can be heated to, and then sets a multi-stage preheating process based on the required preheating temperature of the feed; the above calculation algorithm is set by a person skilled in the art using an appropriate calculation algorithm in the prior art;

[0091] The above-mentioned recovered hot water is used independently in its appropriate preheating stage, and other preheating stages are provided with appropriate hot water or steam for preheating work. When other preheating stages are provided, those skilled in the art shall select appropriate existing technical equipment to provide hot water or steam;

[0092] This embodiment recycles the steam used in mixed puffing and granulation: when the steam is discharged, the steam is exchanged with the waste heat recovery equipment, and after the heat exchange, the recovered steam and recovered hot water are output for reuse; and the reuse is regulated according to actual production, effectively saving energy consumption.

[0093] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A low-protein feed for laying quails, characterized by: The feed comprises the following components by weight: 10-25 parts of corn, 8-15 parts of soybean meal, 5-16 parts of corn gluten powder, 0.5-5 parts of coenzyme Q10 residue, 5-15 parts of corn sugar residue, 0.3-1.5 parts of calcium hydrogen phosphate, 3-10 parts of calcium carbonate, 0.2-2 parts of sodium chloride, 0.4-3 parts of sodium bicarbonate, 15-20 parts of cassava flour, 0.4-2 parts of 65% lysine, 99% methionine Acid 0.1-3.2 parts, 99% tryptophan 0.02-1 parts, 98% threonine 0.1-2.8 parts, 99% isoleucine 0.05-1 parts, 99% valine 0.3-1 parts, third-grade soybean oil 2-6 parts, 40000IU α-amylase 0.05-0.5 parts, diglycerol fatty acid ester 0.1-2 parts, fulvic acid 0.1-0.5 parts, 95% rare earth citric acid 0.1-0.5 parts.

2. A production process for the low-protein feed for laying quails according to claim 1, characterized in that: The specific process steps include: A1, mixing and puffing, put the prepared amino acid compound package into the premixer, mix for 3 minutes, then output the feed and preheat it; After preheating, it is placed in a feed extruder for modulation, and steam is injected; it is extruded and rotated; the extrusion temperature reaches 140 degrees in a short time to gelatinize the cassava flour and wrap the amino acids; After cooling for 5 minutes, crush and package for use; during the cooling process, the discharged steam is recovered and sent to the waste heat utilization equipment for heat exchange with water; after the heat exchange, the output recovered hot water is stored for use, and after the temperature stabilizes, it is output for steam generator or feed preheating according to the stable temperature value of the hot water. The cooling steam discharged by the heat exchange is used for the preset designated equipment through different paths; A2, crushing and mixing to obtain mixed raw materials, the mixing and puffing steps of the mixed raw materials include: first crushing raw material A into 0.5-2 mm particle size, then adding raw material B and puffed amino acid package to mix fully, after mixing evenly, lifting to a pellet mill to start pelleting, preheating the feed during the lifting and output process, and lifting to a pellet mill to start pelleting after preheating; The raw material A comprises the following components by weight: 10-25 parts of corn, 8-15 parts of soybean meal, 5-16 parts of corn gluten powder, 0.5-5 parts of coenzyme Q10 residue, and 5-15 parts of corn sugar residue; The raw material B comprises the following components by weight: 0.3-1.5 parts of calcium hydrogen phosphate, 3-10 parts of calcium carbonate, 0.2-2 parts of sodium chloride, and 0.4-3 parts of sodium bicarbonate; A3, granulation, using a modulator and a granulator for granulation, the steam pressure during granulation is 4-6 Pa, the feed conditioning temperature in the modulator is 85 degrees to 95 degrees, and the conditioning and maturation time is 2 minutes; the pelletized feed is transported to a crusher and crushed into pellets with a diameter of 0.3-0.5 cm that are convenient for quails to eat; A4, secondary mixing, conveying the crushed pellet feed to the mixer, and then spraying the raw material C for mixing. After the feed in the mixer is fully mixed, it is cooled and dried and then packaged into finished products for storage; the raw material C includes the following components by weight: 2-6 parts of grade tertiary soybean oil, 0.05-0.5 parts of 40000IU α-amylase, 0.1-2 parts of diglycerol fatty acid ester, and 0.1-5 parts of fulvic acid.

3. The production process of a low-protein feed for laying quails according to claim 2, characterized in that: The waste heat utilization device comprises a heat exchange water tank (1), a steam recovery pipe group (2) is fixedly connected to the heat exchange water tank (1), the steam recovery pipe group (2) comprises an air intake pipe (21), three heat exchange pipe rows (22) are fixedly connected to the air intake pipe (21); an exhaust pipe (23) is connected between the output ends of the three heat exchange pipe rows (22); The water exchange tank (1) is provided with heat exchange cavities (11) respectively matched with the three heat exchange tube banks (22); a connecting valve (3) is connected between two adjacent heat exchange cavities (11); a connecting pipe (24) is connected between two adjacent heat exchange tube banks (22); a three-way solenoid valve is connected between the connecting pipe (24) and the heat exchange tube bank (22); The output end of the heat exchange cavity (11) is connected to a water storage tank (4), and the hot water output from the water storage tank (4) is used for the premixer, the modulator and the steam generator respectively; The water storage tank (4) comprises a heat-insulating shell (41), three temperature-stabilizing chambers (42) are fixedly connected inside the heat-insulating shell (41), two adjacent temperature-stabilizing chambers (42) are directly connected to an output pipe, a circulation pipe (43) is connected between the plurality of temperature-stabilizing chambers (42), and a circulation liquid pump (44) matching the circulation pipe (43) is fixedly connected inside the heat-insulating shell (41).

4. The production process of a low-protein feed for laying quails according to claim 2, characterized in that: The annular membrane pore size in the A3 is 2.5-3 mm, the compression ratio is 1:13-1:15, and the granulation length is 1.5-2.5 cm.

5. The production process of a low-protein feed for laying quails according to claim 2, characterized in that: The amino acid composite package in A1 comprises the following components by weight: 10-25 parts of cassava flour, 0.4-2 parts of 65% lysine, 0.1-3.2 parts of 99% methionine, 0.02-1 parts of 99% tryptophan, 0.1-2.8 parts of 98% threonine, 0.05-1 parts of 99% isoleucine, and 0.3-1 parts of 99% valine.

6. The production process of a low-protein feed for laying quails according to claim 2, characterized in that: The puffed amino acid package in A2 comprises the following components by weight: 10-25 parts of cassava flour, 0.4-2 parts of 65% lysine, 0.1-3.2 parts of 99% methionine, 0.02-1 parts of 99% tryptophan, 0.1-2.8 parts of 98% threonine, 0.05-1 parts of 99% isoleucine, 0.3-1 parts of 99% valine, and 0.1-0.5 parts of 95% rare earth citrate.

7. The production process of a low-protein feed for laying quails according to claim 3, characterized in that: The tube diameters and path lengths of the three heat exchange tube rows (22) are all different.

8. The production process of a low-protein feed for laying quails according to claim 3, characterized in that: It also includes a waste heat utilization system, which includes a processor, and the processor is connected to a control module, a data processing module, a data storage module, a monitoring module and a waste heat control module; The control module is used to control the operation of the steam generator, the waste heat utilization equipment and the steam temperature regulator; The monitoring module is used to collect monitoring data, and the monitoring data includes feed mixer exhaust temperature, feed temperature, recovered hot water temperature, recovered heat flow, recovered steam temperature and recovered steam flow; The data processing module is used to process the monitoring data and regulate the use of recovered hot water and recovered steam according to the equipment operating parameters; The data storage module is used to store monitoring data and equipment parameters.

9. The production process of a low-protein feed for laying quails according to claim 8, characterized in that: The control module is provided with a path adjustment mode. When the path adjustment mode is in operation, the plurality of connecting valves (3) and connecting pipes (24) are controlled to be opened, so that the recovered steam is discharged after passing through the plurality of heat exchange pipe rows (22), and the heat exchange water is discharged to the water storage tank (4) after passing through the plurality of heat exchange cavities (11). The circulation pipe (43) in the water storage tank (4) is opened, so that the three temperature stabilization chambers (42) are connected.

10. The production process of a low-protein feed for laying quails according to claim 8, characterized in that: When the data processing module performs heating adjustment, the specific process includes: For the hot water used for the steam generator, the amount of steam that can be generated from the recycled hot water is obtained according to the conversion rate of the steam generator to the recycled hot water, and then the remaining required steam amount is determined according to the steam usage of the extruder and the premixer, and the steam generation work is adjusted according to the remaining required steam amount; For the hot water used for preheating the feed, first set the staged preheating steps according to the amount of recovered hot water. The recovered hot water is used independently for one preheating stage. In the other preheating stages, set appropriate hot water or steam to preheat the feed.

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