CN107912788B

CN107912788B - Horizontal baking oven for peanut oil press

Info

Publication number: CN107912788B
Application number: CN201810008755.4A
Authority: CN
Inventors: 彭冰冰; 薛松涛; 彭学民; 魏君玲
Original assignee: Shandong Lvdi Food Co ltd
Current assignee: Shandong Lvdi Food Co ltd
Priority date: 2018-01-04
Filing date: 2018-01-04
Publication date: 2023-07-25
Anticipated expiration: 2038-01-04
Also published as: CN107912788A

Abstract

The invention discloses a horizontal baking oven for a peanut oil press, which comprises a heat-insulating shell and a baking rotary drum; the inner wall of the baking rotary drum is provided with a ceramic layer; two ends of the baking rotary drum are rotationally connected with two ends of the heat preservation shell; the baking rotary drum rotates in a transmission way through a transmission motor; a combustion chamber is reserved between the heat-insulating shell and the baking rotary drum; the bottom of the combustion chamber is provided with a refractory brick with a burner I; the front end of the baking rotary drum is provided with a feeding pipe, and the rear end of the baking rotary drum is provided with a discharging pipe; the baking rotary drum is provided with an air outlet pipe communicated with the baking rotary drum; and ceramic scraping plates are uniformly arranged on the ceramic layers on the inner wall of the baking rotary drum. The baking furnace rotates for baking, the whole peanut kernels are uniformly turned over by the ceramic scraping plate, the moisture is effectively removed, and the baking standard is uniform. The ceramic layer and the ceramic scraping plate on the inner wall of the baking rotary drum can effectively prevent the height Wen Jiezha, so that the baking effect is improved. The ceramic has good stability at high temperature, can ensure that the baked peanut kernels do not contain peculiar smell, is environment-friendly and sanitary and is easy to clean.

Description

Horizontal baking oven for peanut oil press

Technical Field

The invention belongs to the technical field of peanut oil pressing equipment, and particularly relates to a horizontal baking oven for a peanut oil press.

Background

Peanut oil is relatively easily digestible edible oil which is easy to be absorbed by human body, and is widely eaten in northern areas, and the fragrance of the peanut oil is unique and pure, namely, the content of pyrazine substances is high. At present, the peanut kernel is steamed and fried at high temperature through a steaming and frying furnace in the oil pressing process of the peanut, so that the excessive moisture in the peanut kernel is removed; the steaming and frying furnace is vertical, and the peanut kernels are steamed and fried at high temperature layer by layer from top to bottom, so that the processing mode is widely applied.

When the method is used for carrying out high-temperature steaming and frying treatment on the peanut kernels before oil extraction, the peanut kernels need to be crushed, namely, a steaming and frying furnace is only suitable for extracting oil from the crushed peanut kernels, the method can effectively remove the water in the peanut kernels, but the oil fragrance loss of the crushed peanut kernels is large, namely, the pyrazine substances are lost, and the pure and strong fragrance state cannot be achieved; if whole peanut kernels are steamed and fried, the loss of pyrazine substances is less, but the content of water is high, and the quality of squeezed oil is poor. Therefore, in order to improve the oil yield and the oil quality, the steaming and frying furnace is only used for processing crushed peanut kernels, and a certain amount of pyrazine substances are inevitably lost when the peanut oil is processed in the mode, so that the fragrance of the peanut oil cannot reach a pure and strong fragrance state.

In order to keep pyrazine substances and moisture in the dried peanut kernels to the greatest extent, the high-temperature treatment of the whole peanut kernels to remove the moisture is a necessary choice, the control of the temperature is very important in the baking process of the whole peanut kernels, the baking paste of the whole peanut kernels is burnt after the temperature is Gao Huasheng, the fragrance is complete, the moisture is not completely removed after the temperature is too low, and the oil pressing quality is affected by the high moisture content.

Secondly, after high temperature flame and the heat transfer of metal furnace body, peanut can cause the furnace body inner wall to remain one deck and paste the sediment when contacting with the furnace body in high temperature environment, and the outer red clothing of peanut kernel also toasts the sediment of pasting easily, influences the heat conduction effect, need the unscheduled clearance to the inner wall, influences production efficiency and progress, and paste the formation of sediment layer and be a slow process, the furnace body after the clearance is initially toasted effectually, gradually uses the back and gradually forms along with pasting the sediment and toasts the effect and begin to descend, consequently, the peanut kernel quality after toasting gradually reduces, the oil of squeezing out also gradually descends.

In addition, the smell of the metal and burnt smell can cause certain peculiar smell when the metal furnace body is baked at high temperature. Therefore, the stable and efficient baking mode is almost impossible to process the whole peanut kernels, so the whole peanut kernels are rarely applied to the baking mode.

In conclusion, only by adopting a reasonable processing mode to bake the whole peanut kernels, the control quantity of the pyrazine substances serving as main aroma components can be obtained, and the peanut oil with rich and pure aroma can be obtained.

Disclosure of Invention

The invention aims to solve the technical problems of easy gelatinization and easy odor tainting in granule baking in the prior art, and provides a horizontal baking oven for a peanut oil press so as to overcome the defects in the prior art.

In order to achieve the above purpose, the invention adopts the following technical scheme:

a horizontal baking oven for peanut oil presses comprises a heat-insulating shell and a baking rotary drum which are respectively arranged transversely; the baking rotary drum is arranged in the heat-preserving shell; the inner wall of the baking rotary drum is provided with a ceramic layer; the front sealing swivel and the rear sealing swivel which are fixedly arranged at the front end and the rear end of the baking rotary drum are respectively in sealing and rotating connection with the front end and the rear end of the heat preservation shell through sealing slip rings; a transmission motor with a speed reducer is arranged on the heat-preserving shell; the transmission motor is in meshed transmission connection with a fluted disc on the rear sealing swivel through a gear;

a combustion chamber is reserved between the heat-insulating shell and the baking rotary drum; the top of the combustion chamber is provided with a smoke exhaust pipe which is communicated with the combustion chamber and provided with a draught fan I, and the bottom of the combustion chamber is provided with refractory bricks; the fireproof bricks are arranged between the baking rotary drum and the heat-preserving shell, and a combustor I fixedly connected with the front end of the heat-preserving shell is arranged below the fireproof bricks;

a front sealing rotating ring at the front end of the baking rotary drum is provided with a front sealing disk in sealing and rotating connection with the front sealing rotating ring, and the front sealing disk is provided with a feeding pipe communicated with the baking rotary drum; a spiral pushing rod in transmission connection with the feeding motor is arranged in the feeding pipe; a rear sealing rotary ring at the rear end of the baking rotary drum is provided with a rear sealing disc in sealing and rotary connection with the baking rotary drum, and the rear sealing disc is provided with a discharging pipe communicated with the baking rotary drum; the front sealing disc and the rear sealing disc are respectively provided with an air outlet pipe communicated with the baking rotary drum, and the air outlet pipes are respectively provided with an induced draft fan II;

the ceramic layer of toasting rotary drum inner wall is last evenly to be equipped with a plurality of pottery and scrapes the flitch, and pottery scrapes the flitch and set up towards discharging pipe department slope respectively.

In order to achieve good baking effect, the refractory bricks are correspondingly arranged at the lower part of the baking rotary drum and are semicircular corresponding to the lower part of the baking rotary drum; a gap of 22-28cm is reserved between the refractory bricks and the baking rotary drum.

In order to ensure uniform baking, a combustor II is arranged at the bottom of the combustion chamber; the burner II corresponds to the middle part of the refractory brick.

In order to rotate smoothly, roller support seats which are in sliding connection with the front sealing swivel and the rear sealing swivel are respectively and fixedly arranged at the front end and the rear end of the heat-preservation shell.

For even turning, the ceramic scraping plates are arranged in a staggered mode.

As another aspect of the present invention, the present invention is also a preferred embodiment,

the ceramic layer and the ceramic scraping plate are of an integrated structure, and are prepared according to the following process:

step 1) taking raw materials for standby according to parts by weight, wherein 80 parts of fly ash, 50 parts of potassium feldspar, 30 parts of quartz sand, 22 parts of hydroxyapatite, 15 parts of mica powder, 10 parts of diatomite, 8 parts of silicon carbide, 6 parts of polysulfone resin, 6 parts of polyimide and 80 parts of water;

step 2) mixing potassium feldspar, quartz sand, hydroxyapatite, diatomite and silicon carbide, then drying at 0 ℃ for 24 hours, naturally cooling to room temperature at a drying position, and then ball-milling in a ball mill to 100-mesh powder;

step 3) sequentially adding the fly ash, the mica powder, the polysulfone resin, the polyimide and the powder obtained in the step 2) into a stirrer, adding water, stirring at 200rpm for 90min, and then placing into a mould for compression molding, wherein the molding pressure is 90MPa, and the pressure maintaining time is 60s, so as to obtain a blank;

and 4) placing the green body in a muffle furnace for high-temperature sintering, wherein the heating rate is 20 ℃/min, the sintering temperature is 1200 ℃, the heat preservation time is 3h, and the green body is left to stand in the muffle furnace for natural cooling after sintering is completed, so that the ceramic body is obtained.

The beneficial effects of the invention mainly include, but are not limited to, the following aspects:

1. according to the invention, the transverse baking furnace is adopted for rotary baking, and the whole peanut kernels are uniformly turned inside through the ceramic scraping plate, so that the moisture can be effectively removed, the whole peanut kernels can be turned fully, and the baking standard is ensured to be uniform.

2. According to the invention, the ceramic layer and the ceramic scraping plate on the inner wall of the baking rotary drum are adopted, so that the height Wen Jiezha can be effectively prevented, and the baking effect is improved.

3. The traditional direct contact between the peanut kernels and the metal furnace body is changed into the prior direct contact with the ceramic layer, and the ceramic has good stability at high temperature, can ensure that the baked peanut kernels do not contain peculiar smell, is environment-friendly and sanitary, and is easy to clean.

4. The ceramic layer and the ceramic scraping plate are of an integrated structure, and a novel ceramic material is used; the novel ceramic material takes the industrial waste gas fly ash as the raw material, reduces the addition amount of other raw materials, has low price and low cost, and realizes changing waste into valuable; the prepared ceramic has good high temperature resistance by adding polysulfone resin and polyimide, and can not be denatured in a high temperature environment, so that the corrosion resistance is greatly improved; by adding a proper amount of quartz sand and silicon carbide, the mechanical strength is improved; the invention has simple preparation process and low production cost, and is easy for large-scale production.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the A-A direction structure in fig. 1.

Fig. 3 is a schematic left side view of the structure of fig. 1.

Fig. 4 is a schematic enlarged view of the structure at a in fig. 1.

In the figure, a feeding motor 2-feeding pipe 3-spiral pushing rod 4-air outlet pipe 5-front sealing swivel 6-sealing slip ring 7-heat preservation shell 8-baking rotary drum 9-ceramic scraping plate 10-smoke discharging pipe 11-induced draft fan I12-gear 13-driving motor 14-induced draft fan II 15-fluted disc 16-rear sealing swivel 17-discharging pipe 18-roller supporting seat 19-burner II 20-refractory brick 21-combustion chamber 22-burner I23-rear sealing disc 24-front sealing disc 25-ceramic layer.

Detailed Description

The technical solutions of the present invention will be clearly and completely described below with reference to fig. 1 to 4, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1 to 4, the present invention comprises a heat-insulating housing 7 and a roasting drum 8 which are respectively arranged transversely; the baking rotary drum 8 is arranged inside the heat-insulating shell 7; the inner wall of the baking rotary drum 8 is provided with a ceramic layer 25; the front sealing swivel 5 and the rear sealing swivel 16 which are fixedly arranged at the front end and the rear end of the baking rotary drum 8 are respectively in sealing and rotating connection with the front end and the rear end of the heat preservation shell 7 through a sealing slip ring 6; a transmission motor 13 with a speed reducer is arranged on the heat-preserving shell 7; the transmission motor 13 is in meshed transmission connection with a fluted disc 15 on a rear sealing swivel 16 through a gear 12;

a combustion chamber 21 is reserved between the heat-insulating shell 7 and the baking rotary drum 8; the top of the combustion chamber 21 is provided with a smoke exhaust pipe 10 which is communicated with the combustion chamber and provided with a draught fan I11, and the bottom of the combustion chamber 21 is provided with a refractory brick 20; the refractory bricks 20 are arranged between the baking rotary drum 8 and the heat-preserving shell 7, and a combustor I22 fixedly connected with the front end of the heat-preserving shell 7 is arranged below the refractory bricks 20;

a front sealing rotary ring 5 at the front end of the baking rotary drum 8 is provided with a front sealing disk 24 in sealing rotary connection with the front sealing rotary ring, and the front sealing disk 24 is provided with a feeding pipe 2 communicated with the baking rotary drum 8; a spiral pushing rod 3 in transmission connection with the feeding motor 1 is arranged in the feeding pipe 2; a rear sealing rotary ring 13 at the rear end of the baking rotary drum 8 is provided with a rear sealing disc 23 in sealing rotary connection with the rear sealing rotary ring, and the rear sealing disc 23 is provided with a discharging pipe 17 communicated with the baking rotary drum 8; the front sealing disc 24 and the rear sealing disc 23 are respectively provided with an air outlet pipe 4 communicated with the baking rotary drum 8, and the air outlet pipes 4 are respectively provided with an induced draft fan II 14;

a plurality of ceramic scraping plates 9 are uniformly arranged on the ceramic layer 25 on the inner wall of the baking rotary drum 8, and the ceramic scraping plates 9 are obliquely arranged towards the discharge pipe 17 respectively.

In order to achieve a good baking effect, the refractory bricks 20 are correspondingly arranged at the lower part of the baking drum 8 and are in a semicircular shape corresponding to the lower part of the baking drum 8; a gap of 22-28cm is left between the refractory bricks 20 and the baking drum 8.

In order to ensure uniform baking, the bottom of the combustion chamber 21 is provided with a burner II 19; the burner II 19 corresponds to the middle part of the refractory brick 20.

For smooth rotation, the front and rear ends of the heat-insulating shell 7 are respectively and fixedly provided with roller supporting seats 18 which are in sliding connection with the front sealing swivel 5 and the rear sealing swivel 13.

For uniform material turning, the ceramic scraping plates 9 are arranged in a staggered manner.

Working principle: the whole peanut kernels enter a feed pipe 2 and are continuously conveyed into a baking rotary drum 8 through a spiral pushing rod 3 which is in transmission connection with a feeding motor 1; the peanut kernels are uniformly turned under the action of the ceramic scraping plates 9, and the ceramic scraping plates 9 are arranged in a staggered manner so that the peanut kernels can move towards the discharge pipe 17 continuously; the high-temperature flames of the burner I22 and the burner II 19 heat the refractory bricks 20, the generated waste smoke is discharged from the smoke discharge pipe 10, and the gap between the heated refractory bricks 20 and the baking drum can utilize air as a heat exchange medium to perform heat exchange, so that the phenomenon of baking paste caused by direct dry burning is prevented; the roasted peanut kernels are discharged from the discharging pipe 17, and the peanut kernels can enter the next production link gold multi-group small mill type oil pressing operation.

The ceramic layer is arranged on the inner wall of the baking rotary drum, so that the stability during baking is ensured, the baking paste is prevented from slagging, and the quality of baked peanut kernels is uniform; the ceramic layer is clean and sanitary, stable at high temperature, free from peculiar smell of products and easy to clean; the air is used as a heat exchange medium, the baking rotary drum is not directly contacted with flame, the temperature is uniformly dispersed and is easy to control, and the phenomenon of local temperature imbalance is avoided; the whole baked peanut kernels can retain pyrazine substances to the greatest extent, fragrance is fully exerted in the subsequent oil pressing process, and fragrance of peanuts is enabled to be rich and pure truly.

Example 2

The polysulfone resin is bisphenol A polysulfone; the particle size of the fly ash and the mica powder is 100 meshes.

The performance test of the ceramic material of the invention takes the ceramic material commonly used in the market as a comparison, and the specific see table 1:

TABLE 1

Index (I)	Bulk density g/cm ³	Flexural Strength MPa	Thermal conductivity W/m.k (500 ℃ C.)	Corrosion rate%	1400 ℃, 24 hours heating, change rate (25 mm)
						Example 2	2.07	21.98	0.091	1.86	2.11
Control group	2.28	19.53	0.126	2.47	2.69

Conclusion: the ceramic material of the invention has better performance than common ceramic materials, good high temperature resistance, corrosion resistance and heat preservation effects, prolonged service time and improved product quality.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention.

Claims

1. A horizontal baking oven for peanut oil press, characterized by: the baking machine comprises a heat-insulating shell (7) and a baking rotary drum (8) which are respectively arranged transversely; the baking rotary drum (8) is arranged in the heat-insulating shell (7); the inner wall of the baking rotary drum (8) is provided with a ceramic layer (25); the front sealing swivel (5) and the rear sealing swivel (16) which are fixedly arranged at the front end and the rear end of the baking rotary drum (8) are respectively connected with the front end and the rear end of the heat preservation shell (7) in a sealing and rotating manner through a sealing slip ring (6); a transmission motor (13) with a speed reducer is arranged on the heat-insulating shell (7); the transmission motor (13) is in meshed transmission connection with a fluted disc (15) on the rear sealing swivel (16) through a gear (12);

a combustion chamber (21) is reserved between the heat-insulating shell (7) and the baking rotary drum (8); the top of the combustion chamber (21) is provided with a smoke exhaust pipe (10) which is communicated with the combustion chamber and provided with a draught fan I (11), and the bottom of the combustion chamber (21) is provided with a refractory brick (20); the fireproof bricks (20) are arranged between the baking rotary drum (8) and the heat-preserving shell (7), and a combustor I (22) fixedly connected with the front end of the heat-preserving shell (7) is arranged below the fireproof bricks (20);

a front sealing rotary ring (5) at the front end of the baking rotary drum (8) is provided with a front sealing disk (24) in sealing rotary connection with the front sealing rotary ring, and the front sealing disk (24) is provided with a feeding pipe (2) communicated with the baking rotary drum (8); a spiral pushing rod (3) which is in transmission connection with the feeding motor (1) is arranged in the feeding pipe (2); a rear sealing rotary ring (13) at the rear end of the baking rotary drum (8) is provided with a rear sealing disc (23) which is in sealing rotary connection with the rear sealing rotary ring, and the rear sealing disc (23) is provided with a discharging pipe (17) which is communicated with the baking rotary drum (8); the front sealing disc (24) and the rear sealing disc (23) are respectively provided with an air outlet pipe (4) which is mutually communicated with the baking rotary drum (8), and the air outlet pipes (4) are respectively provided with an induced draft fan II (14);

a plurality of ceramic scraping plates (9) are uniformly arranged on a ceramic layer (25) on the inner wall of the baking rotary drum (8), and the ceramic scraping plates (9) are obliquely arranged towards the discharge pipe (17) respectively;

the refractory bricks (20) are correspondingly arranged at the lower part of the baking rotary drum (8), and are semicircular corresponding to the lower part of the baking rotary drum (8); a gap of 22-28cm is reserved between the refractory bricks (20) and the baking rotary drum (8);

the ceramic layer (25) and the ceramic scraping plate (9) are of an integrated structure, and are prepared according to the following process: step 1) taking raw materials for standby according to parts by weight, wherein 80 parts of fly ash, 50 parts of potassium feldspar, 30 parts of quartz sand, 22 parts of hydroxyapatite, 15 parts of mica powder, 10 parts of diatomite, 8 parts of silicon carbide, 6 parts of polysulfone resin, 6 parts of polyimide and 80 parts of water;

step 3) sequentially adding the fly ash, the mica powder, the polysulfone resin, the polyimide and the powder obtained in the step 2) into a stirrer, adding water, stirring at 200rpm for 90min, and then placing into a mould for mould pressing and forming to obtain a blank;

2. The horizontal roaster for peanut oil press according to claim 1, characterized in that the bottom of the combustion chamber (21) is provided with a burner ii (19); the burner II (19) corresponds to the middle part of the refractory brick (20).

3. The horizontal type baking furnace for the peanut oil press according to claim 1, wherein roller supporting seats (18) which are in sliding connection with the front sealing swivel (5) and the rear sealing swivel (13) are respectively fixedly arranged at the front end and the rear end of the heat-insulating shell (7).

4. A horizontal roaster for peanut oil press as claimed in claim 1, wherein,

the ceramic scraping plates (9) are arranged in a staggered mode.